Flower Types Research Articles

Characteristics and Cytological Analysis of Several Novel Allopolyploids and Aneuploids between Brassica oleracea and Raphanus sativus.

Polyploids are essential in plant evolution and species formation, providing a rich genetic reservoir and increasing species diversity. Complex polyploids with higher ploidy levels often have a dosage effect on the phenotype, which can be highly detrimental to gametes, making them rare. In this study, offspring plants resulting from an autoallotetraploid (RRRC) derived from the interspecific hybridization between allotetraploid Raphanobrassica (RRCC, 2n = 36) and diploid radish (RR, 2n = 18) were obtained. Fluorescence in situ hybridization (FISH) using C-genome-specific repeats as probes revealed two main genome configurations in these offspring plants: RRRCC (2n = 43, 44, 45) and RRRRCC (2n = 54, 55), showing more complex genome configurations and higher ploidy levels compared to the parental plants. These offspring plants exhibited extensive variation in phenotypic characteristics, including leaf type and flower type and color, as well as seed and pollen fertility. Analysis of chromosome behavior showed that homoeologous chromosome pairing events are widely observed at the diakinesis stage in the pollen mother cells (PMCs) of these allopolyploids, with a range of 58.73% to 78.33%. Moreover, the unreduced C subgenome at meiosis anaphase II in PMCs was observed, which provides compelling evidence for the formation of complex allopolyploid offspring. These complex allopolyploids serve as valuable genetic resources for further analysis and contribute to our understanding of the mechanisms underlying the formation of complex allopolyploids.

Camellia neriifolia and Camellia ilicifolia (Theaceae) as separate species: evidence from morphology, anatomy, palynology, molecular systematics

BackgroundThe systematic status of sect. Tuberculata and its taxonomy have recently attracted considerable attention. However, the different bases for defining the characteristics of sect. Tuberculata has led to many disagreements among the plants in this group. Camellia neriifolia and Camellia ilicifolia have been the subject of taxonomic controversy and have been treated as different species or varieties of the same species. Therefore, it is important to use multiple methods, i.e., integrative taxonomy, to determine the taxonomic status of C. neriifolia and C. ilicifolia. This is the first study to systematically explore the taxonomic position of these two plants on the basis of Morphology, Anatomy, Palynology and Molecular Systematics.ResultsExtensive specimen reviews and field surveys showed that many differences exist in C. neriifolia and C. ilicifolia, such as the number of trunk (heavily debarked vs. slightly peeling), leaf type (smooth thin leathery, shiny vs. smooth leathery, obscure or slightly shiny), leaf margin (entire vs. serrate), flower type (subsessile vs. sessile), number of styles (3–4 vs. 3), and sepal (ovate vs. round). Moreover, C. neriifolia has a more distinctive faint yellow flower color, and trunk molting was more severe in C. neriifolia than that in C. ilicifolia. In addition, micromorphological analysis of the leaf epidermis showed that the two species differed in the anticlinal wall, stomatal apparatus, and stomatal cluster, and pollen morphology analyses based on pollen size, germination furrow, and polar and equatorial axes showed that they are both distinct from each other. The results of the phylogenetic tree constructed based on the whole chloroplast genome, protein-coding genes, and ITS2 showed that both C. ilicifolia and C. neriifolia were clustered in different branches and gained high support.ConclusionsThe results combine morphology, anatomy, palynology, and molecular systematics to treat both C. neriifolia and C. ilicifolia as separate species in the sect. Tuberculata, and the species names continue to be used as they were previously. In conclusion, clarifying the taxonomic status of C. neriifolia and C. ilicifolia deepens our understanding of the systematic classification of sect. Tuberculata.

Assistance for Micro Businesses of Canang Sari Traders in Penatih Dangin Puri Village, East Denpasar

Microenterprises are businesses run by people categorized as poor or near poor. They are family-owned, using local resources and simple technology. Micro-enterprises include unbanked people, a group that is difficult to get access to banking even though this group has the potential to develop business. Canang Sari is the simplest form of offerings in the form of janur made rectangular decorated with various types of flowers that are offered as an effort to get closer to God in prayer. Based on observations, there is a group of canang traders called the Canang Sari Wangi group located in Banjar Laplap Putih, Penatih Dangin Puri Village, East Denpasar who really need help to overcome the problems they face. This Canang Sari Wangi trader group has 5 members who have been established since 2020. The problems faced by this group of Canang Sari Wangi traders are difficult to get access to banking, lack of knowledge for business development due to fluctuations in demand, very fierce competition, high operational costs, lack of understanding of creative marketing and the absence of careful and thorough administration of financial reports. The approach taken is to further coordinate with members of the Canang Sari Wangi Group so as to obtain the main needs for increasing productivity, namely by providing assistance to facilitate access to banking, entrepreneurship assistance, improve creative marketing skills and make business bookkeeping. The output target to be achieved is an increase in the ability of partners to access banking, through creative marketing partners are able to increase group income by 30% and all members of the Canang Sari Wangi group are able to make simple group bookkeeping. The method of implementing this activity is preceded by collecting information from partner conditions, designing activities to be carried out, followed by program socialization, conducting training, mentoring and evaluation.

Assessing Bee (Hymenoptera, Apoidea, Anthophila) Diversity and Floral Preference in Two Habitats in the Iberian Peninsula

The plant-pollinator relationship is one of the most investigated biological processes, not only because of its ecological importance (natural and farming ecosystems) but also its economic profitability (farming and biological products). Current losses of bee populations urge the need to assess the state of wild bee biodiversity in environments such as the Sierra de Guadarrama. Two characteristic sites with different plant diversities were compared by collecting bees using net trapping, a thicket, and a grassland. In this way, not only the possible influence of floral wealth on bee abundance was studied, but also the preference of these Hymenoptera towards any type of flower. Phenological patterns and predominant sex were also studied. 331 bee individuals, belonging to 6 families, 19 genera, and 46 species, were recorded in this study. Our results showed that bee diversity depends not only on environmental factors (temperature or plant composition and abundance) but biological as well (plant-pollinators matches or co-occurring species). Moreover, our study sets a starting point for debating the influence of managed bees (Apis mellifera) on wild bee communities. A preference for a small number of plant species (Cistus ladanifer, Echium vulgare, and Lavandula stoechas) was observed. In addition, there was a relationship between the type of corolla and the tongue length. Our study highlights the importance of this area of the Sierra de Guadarrama for wild bee biodiversity. All things considered, it falls on preserving those ecosystems with high floral wealth to favor the wild bee´s presence and its habitat in the foresight of climate change future scenarios.

Genome-wide identification and expression pattern analysis of MIKC-Type MADS-box genes in Chionanthus retusus, an androdioecy plant

BackgroundThe MADS-box gene family is widely distributed in the plant kingdom, and its members typically encoding transcription factors to regulate various aspects of plant growth and development. In particular, the MIKC-type MADS-box genes play a crucial role in the determination of floral organ development and identity recognition. As a type of androdioecy plant, Chionanthus retusus have unique gender differentiation. Manifested as male individuals with only male flowers and female individuals with only bisexual flowers. However, due to the lack of reference genome information, the characteristics of MIKC-type MADS-box genes in C. retusus and its role in gender differentiation of C. retusus remain largely unknown. Therefore, it is necessary to identify and characterize the MADS-box gene family within the genome of the C. retusus.ResultsIn this study, we performed a genome-wide identification and analysis of MIKC-type MADS-box genes in C. retusus (2n = 2x = 46), utilizing the latest reference genome, and studied its expression pattern in individuals of different genders. As a result, we identified a total of 61 MIKC-type MADS-box genes in C. retusus. 61 MIKC-type MADS-box genes can be divided into 12 subfamilies and distributed on 18 chromosomes. Genome collinearity analysis revealed their conservation in evolution, while gene structure, domains and motif analysis indicated their conservation in structure. Finally, based on their expression patterns in floral organs of different sexes, we have identified that CrMADS45 and CrMADS60 may potentially be involved in the gender differentiation of C. retusus.ConclusionsOur studies have provided a general understanding of the conservation and characteristics of the MIKC-type MADS-box genes family in C. retusus. And it has been demonstrated that members of the AG subfamily, CrMADS45 and CrMADS60, may play important roles in the gender differentiation of C. retusus. This provides a reference for future breeding efforts to improve flower types in C. retusus and further investigate the role of MIKC-type MADS-box genes in gender differentiation.

Studi Pustaka: Ekstraksi Pewarna Alami dari Tanaman di Indonesia

Dyes have played an important role in human life, therefore the production of dyes has continued to increase from the past until now. The use of synthetic chemical dyes has apparently caused various health and environmental problems, this is what has triggered the return to use of natural dyes. Through advances in science and technology, research related to the extraction of natural dyes in Indonesia was carried out until 31 scientific reports were found that studied this matter in the last ten years. Literature studies with secondary data have summarized the novelty of research related to the extraction of natural dyes from plants, where currently flower objects are of great interest for observational studies. Various types of flowers have potential pigments that can be converted into natural dyes. The maceration extraction method is still the choice for extracting plant bioactive substances. Recently a study on the extraction of dyes from fruit peel waste was also carried out. It is hoped that the development of information related to the extraction of natural dyes will have more opportunities to be applied in various aspects.

KONTRIBUSI USAHA NIRA AREN YANG DIJADIKAN SOPI TERHADAP PENDAPATAN PETANI SOPI DI NEGERI HATUSUA KECAMATAN KAIRATU KABUPATEN SERAM BAGIAN BARAT

The aim of the research is to find out the contribution of sopi products to the level of income of sopi farmers and, to find out what factors influence the production and sales of sopi products in Hatusua State, West Kairatu Seram District. From the research results, the contribution of sopi is 66.84% or Rp. 561,497,810 per year. Meanwhile, income outside of beef production contributed 33.16% or Rp. 278,600,000 per year. From the results of the research and calculation of the contribution value to the income value of sopi production and income outside of sopi production. The income from sopi production in Hatusua Country has a very large contribution value, compared to the income contribution value outside of sopi production by sopi farmers. Factors that influence the production and sales of sopi in Hatusua State, Kairatu District, West Seram Regency, namely, factors that influence sopi production include weather, type of palm flower, age of palm trees and, type of mayang production level and, factors that influence sales. sopi is the status of a sopi which is still illegal.

Edible Flowers As A Garnish In Food Serving: Knowledge and Cognition of Students of STP AMPTA Yogyakarta Hotel Management Study Program as Research Approach

The objectives of this study are: first, to identify the types of edible flowers which can be used in plating; second, to recognize the knowledge and cognition of the Hotel Management students at STP AMPTA Yogyakarta on the usage of edible plant garnishes for plating. This research is conducted in a qualitative descriptive statistical method. The population and the sample of this research are 30 students of STP AMPTA Yogyakarta majoring in Hotel Management. The sample was collected using a purposive sampling method with the criteria of STP AMPTA students in Hotel Management study program who were taking food processing practice 2 course or students who were in 3rd semester in 2022/2023 academic year, with the total of the respondent of 30 students. The methods of data collecting included in-depth interview, observation, documentation, and literature review. The in-depth interview was conducted with the lecturers (chef) in food processing practice class at STP AMPTA in regard to the types of edible flower used for garnishes. The method used in analysing the data is by describing or presenting the data that had been collected without intending to draw a conclusion that is generally applicable. The data collected is the students’ knowledge and cognition of edible flowers. The result of the study found that the types of edible plant garnishes used in STP AMPTA Yogyakarta are edible leaf (red sorel, nasturtium, pea tendril) and edible flower (viola and pansy). Besides that, the knowledge and cognition indicator revealed the average of variative responses from positive to negative. The average positive responses indicated that they acknowledge the types of edible garnish plants and are confident in putting edible plant garnishes in their plating. Meanwhile, the average of negative responses implicated the students’ lack of information and understanding of flavor and texture of edible plant garnishes they used.

Correlation Coefficient and Path Analysis of Yield and It’s Components Analysis in Pumpkin (Cucurbita moschata Duch ex. Poir)

The current experiment was designed to evaluate the correlation coefficient and path analysis of yield and its components in pumpkin (Cucurbita moschata Duch ex. Poir) among various genotypes. The study involved 35 distinct genotypes, including a control, to measure both quantitative and qualitative traits. It was conducted in a randomized block design with three replications at Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, during the summer of 2021. Observations included the node number at first staminate and pistillate flower anthesis, days to anthesis of both flower types, days to first fruit harvest, fruit polar length, fruit equatorial circumference, flesh thickness, number of fruits per plant, average fruit weight, and total fruit yield per plant. The genotypes were assessed for yield through correlation coefficients and path analysis, indicating promising breeding values as supported by the analysis of variance. Among the 35 genotypes, four yielded significantly more than the highest-performing control, Narendra Agrim.

Flower Buds Confirmed in the Early Cretaceous of China.

The Yixian Formation (Lower Cretaceous) in China is famous worldwide for its fossils of early angiosperms, but there has been only one record of flower buds (Archaebuda lingyuanensis) hitherto, in which only the surface of the flower bud was documented while no internal details were known. Such a partial knowledge of flower buds hinders our understanding of the evolution of flowers, and this knowledge lacuna needs to be filled. Our new specimen was collected from an outcrop of the Yixian Formation (Barremian-Aptian, Lower Cretaceous) near Dawangzhangzi, Lingyuan, Liaoning, China. Our observations reveal a new fossil flower bud, Archaebuda cretaceae sp. nov., from the Lower Cretaceous of China. This new record of Archaebuda in the Yixian Formation not only confirms the truthful existence of the expected gynoecium (plus possible androecium) in a flower bud but also underscores the occurrence of typical flowers in the Early Cretaceous. This new information adds first-hand data to flower sexuality, pollination, and evolution.

Morphological Diversity of Double Petal Telang (Clitoria ternatea L.) in Several Flower Colors

Telang is a plant that grows wild and is cultivated by the people of Indonesia. Telang flowers originate from Ternate Island, Maluku, Indonesia. The most widely used part of Telang, especially in food coloring, is the flower, where Telang flowers can produce a blue color. This study aims to assess the diversity of four types of double-petal Telang flowers based on plant morphology. This study used a Non-Factorial Randomized Group Design (RAK) with treatments in 4 colors of double-petal Telang flowers. The number of replications required was 5 replications, so there were 20 experimental blocks, each experimental block was planted with 3 plants, the number of samples taken from each experimental block was 2 plants and 3 flower samples were taken from each plant. Morphological observations were made directly in the field; the morphological characters observed included varieties and generative. For each color 10 plants were selected. The results of this study show that some types of Telang showed good growth, such as plant height, and then, for the generative period, no significant difference was produced between the types of Telang. Some of the morphology of leaves and flowers have visible similarities. This study's conclusion is based on observing vegetative, generative, and morphological characters of several types of Telang. The observations found that in the vegetative period, some Telang tended to grow fast, but the purple and blue Telang had the highest plant height. Then, in the generative period, the average observation of several types of Telang was not significantly different. The morphology of Telang itself also still has similarities, such as leaf morphology and Telang flowers.

Biological Flora of Britain and Ireland: Silene uniflora‡

Abstract This account presents information on all aspects of the biology of Silene uniflora Roth (S. maritima With., S. vulgaris Garcke subsp. maritima (With.) Á. & D. Löve), Sea Campion, that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of Britain and Ireland: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. Silene uniflora is a mat‐like perennial herb that in Britain and Ireland is primarily distributed in coastal habitats, notably on sea cliffs and shingle banks but also at the drift line and rarely on sand; it also has populations on mountains and heavy metal mine waste tips. All of these substrates tend to be oligotrophic, loose‐textured and freely draining, and often with adverse ion concentrations. It is found in suitable habitats around much of the Atlantic and Baltic coasts of Europe. Its breeding system is gynodioecious and gynomonoecious (some individuals bearing female flowers only, some bearing hermaphrodite flowers only and others with both types of flower). The proportions of the three types of individual vary considerably between populations, but hermaphrodite flowers tend to predominate. The showy, white, nectar‐producing flowers are produced continuously over the entire summer and are pollinated mainly by long‐tongued Hymenoptera and night‐flying moths but autogamous selfing is also frequent. Silene uniflora and its close relative S. vulgaris were the subject of a classic, decadal study involving genetical and transplant experiments that was seminal in the development of ‘experimental taxonomy’. More recently, attention has focused on the rapid evolution of Zn‐tolerant populations of S. uniflora growing on mine spoil and contaminated river gravels. It has also become a model organism for the study of sexually transmitted, castrating fungal diseases in plants (notably of the genus Microbotryum).

Sexual Dimorphism in Caesalpinia platyloba Watson

Heterostyly and gynodioecism have been found in Caesalpinia platyloba Watson, and this is a new record for section Coulteria of the genus Caesalpinia L. The morphology and fertility of short-and long-style flower types are described and discussed their taxonomic significance.

Seed and Germination Characteristics of Different Hybrids Belonging to Vitis Species

In this research, some grape cultivars are belonging to Vitis vinifera, Vitis labrusca, and interspecific grape cultivars were used for crossbreeding. The aim of the cross-breedings was to obtain individuals that could be used as a table grape, female flower type genotypes, and would be resistant to disease and cold hardy grapes. In the research, berry set (seeded and seedless berry number), seed weight (g), seed width and length (mm), floating empty seed rate (seed viability, %), seed germination rates (%), seedling survival rates (%) and shoot length (cm) were calculated in the seeds obtained as a result of cross-breeding. In this research, as a result of crossbreeding with different Vitis species and hybrids, the germination rate was significantly higher, especially when using ‘Red Globe’ and ‘Cayuga White’ cultivars as maternal parents. Although the germination rates of the seeds obtained after cross-breeding are low, the use of ‘Çavuş’ grape cultivar with female flower form in cross-breeding facilitates the work since emasculation is not necessary. It would be appropriate to increase the number of grapevines with female flowers type in breeding studies.

Valorization of agroindustrial orange peel waste during the optimization of activated carbon–multiwalled carbon nanotubes–zinc oxide composites used in the removal of methylene blue in wastewater

Activated carbons (AC) produced from agroindustrial orange peel (OP) wastes and/or commercial multi–walled carbon nanotubes (MWCNTs) were modified with ZnO nanoparticles in different amounts (15 and 30 wt–%) for the removal of methylene blue in aqueous solutions. The MWCNTs functionalization was carried out by typical procedure in acid medium using a ratio of 3:1 (HNO3/H2SO4). A batch adsorption analysis was carried out evaluating different parameters: MB concentration from 40 to 100 mg L–1; pH values between 4 and 10 and adsorption time that varied from 1 to 48 h. The modified materials were characterized through the techniques XRD, FTIR, BET, TGA, SEM and UV–vis. The results showed an adequate dispersion of ZnO NPs on the carbon surfaces with a typical flower–like morphology this type of shape developed micropores that facilitate adsorption phenomena. Under the evaluation conditions, 20 mg of carbon–based materials can remove up to 89.5 ± 4.47 % of MB (80 ppm) after 24 h of exposure at a regulated pH of 8. The equilibrium adsorption data were better fitted by a Langmuir isotherm (R2 = 0.9999) than the Freundlich model (R2 = 0.9366); showing in the best case a maximum adsorption capacity of 1250 mg g−1 for both materials with 30 wt–% of ZnO NPs (AC–MWCTs or MWCNTs). Experimental data also suggest that the most likely mechanism is chemisorption followed by physical adsorption. Then, the compounds with 30 wt–% metal loading (ZnO NPs), AC–MWCNTs–ZnO or MWCNTs–ZnO, displayed the most interesting properties for MB dye removal. AC–ZnO compounds can also remove about 88.75 ± 4.43 % of MB, demonstrating that it can also be a facile and low–cost method to improve the surface area in carbonaceous structures by promoting a strong interaction with the ZnO NPs, which in turn helps to remove contaminants in water efficiently.

Segregation analysis and floral phenotype of T2 transgenic yellow cosmos (Cosmos sulphureus Cav.) carrying neomycin phosphotransferase II gene in second generation

Abstract. Muchyiddin MGAA, Sawitri WD, Irsyadi MB, Swandari T, Purwantoro A. 2024. Segregation analysis and floral phenotype of T2 transgenic yellow cosmos (Cosmos sulphureus Cav.) carrying neomycin phosphotransferase II gene in second generation. Biodiversitas 25: 1711-1717. The seed of transgenic yellow cosmos (Cosmos sulphureus Cav.) lines harbouring neomycin phosphotranferase II (nptII) gene have been obtained from our previous studies. The nptII selectable marker gene is commonly used for developing a method to estimate the number of targeted gene integrated into the genome. In order to produce successful clones, it is important to ensure that transgenes are inherited sexually as the dominant trait in T2 progeny. This study aimed to obtain the segregation patterns of nptII gene in two populations derived from open- and self-pollinated and evaluated floral phenotypic of T2 transgenic yellow cosmos. The molecular analysis of transgenic yellow cosmos was conducted by PCR and the obtained data was analyzed using a Chi-Square test. The results showed that transgenes were inherited in 1:1 for transgenic and wild-type in both self- and open-pollinated populations. Therefore, it indicated that T2 transgenic plants were still unstable and evolved continuously to segregate independently in the over generation. Surprisingly, the morphological changes were detected in transgenic plants. The mixture of ligulate and tubular types in ray floret was found in some of the flower types in T2 yellow cosmos. In this case, nptII gene may diverge in apparently random genome insertion. This insertion would induce morphological changes in the ray floret type of flower since recombination estimates varied among transformation events.

Nutrient content in avocado fruits: Effect of climate, water management, and flowering type

Avocado is a fruit (Persea americana), that has increased its consumption worldwide. Mexico is the main producer and exporter of avocado in the world, representing more than 30% of the world harvest, of which 73.2% of the total avocado production in Mexico was concentrated in the state of Michoacán. In the state of Michoacán, there is a constant production of avocado fruit throughout the year, but this production is affected by the variation in climate, water management and flowering type, putting agricultural production and sustainable development at risk. The objective of this study was to evaluate the climatic effect, water management, and flowering type on fruit nutrient content in six orchards in the state of Michoacan. Six orchards were evaluated in the towns of Basilia, Cheranguerán, Tecario, Araparicuaro, Peribán and Patamburu in the state of Michoacan, which represent 90% of the climate types (TC), predominant in the state (ACW1, ACW2 and CW1)., with 100% of the water regime (irrigated and seasonal, RH) and 97% of the type of fruit produced (loca and normal, FF). The dry matter contents and total mineral content of the fruit were evaluated. The arrangement of treatments was a factorial [A= water regime (RH); B= type of climate (TC); C= floral flow (FF)], distributed completely randomly with 20 repetitions taking each tree as a repetition. The results indicated that the dry matter content is affected by TC, but not by RH and FF, FF affects the nutritional content more than TC and RH. The type of climate is the factor with the least impact on the mineral content of the fruit. In floral flow, the total nutritional content was significant in four elements with higher values for N, Cl, and Zn in crazy fruit and Na in normal fruit.

Selection maintains a nonadaptive floral polyphenism.

Adaptive phenotypic plasticity evolves in response to the contrasting selection pressures that arise when organisms face environmental heterogeneity. Despite its importance for understanding how organisms successfully cope with environmental change, adaptive plasticity is often assumed but rarely demonstrated. We study here the adaptive nature of the extreme seasonal within-individual floral polyphenism exhibited by the crucifer Moricandia arvensis, a Mediterranean species that produces two different types of flowers depending on the season of the year. During spring, this species has large, cross-shaped, lilac flowers, while during summer, it develops small, rounded, white flowers. Although floral polyphenism was associated with increased plant fitness, selection moved floral traits away from their local optimum values during the harsh summer. This result strongly suggests that floral polyphenism is not adaptive in M. arvensis. The main factor selecting against floral polyphenism was pollinators, as they select for the same floral morph in all environments. Despite not being adaptive, floral polyphenism occurs throughout the entire distribution range of M. arvensis and has probably been present since the origin of the species. To solve this paradox, we explored the factors causing floral polyphenism, finding that floral polyphenism was triggered by summer flowering. Summer flowering was beneficial because it led to extra seed production and was favored by adaptive plasticity in leaf functional traits. Taken together, our study reveals a complex scenario in which nonadaptive floral polyphenism has been indirectly maintained over M. arvensis evolutionary history by selection operating to favor summer flowering. Our study provides thus strong evidence that nonadaptive plasticity may evolve as a byproduct of colonizing stressful environments.

Research on the Characteristics of Figure Round Pattern in Qing Dynasty

Round pattern, also known as round nest pattern. It is one of the most common patterns in ancient China, that is, symmetrical radial or rotating round decorative patterns around. Such patterns are often found on ancient bronze ware, ceramics, weaving and embroidery products, and modern silk fabrics. Round pattern is an important part of the study of Chinese costume patterns, which contains the cultural concepts that Chinese people yearning for perfection, auspiciousness, reunion, harmony and beauty. Cloud bat pattern, rich and noble peony pattern, colorful cloud pattern, sitting dragon pattern, phoenix pattern, butterfly pattern, and so on, the subject matter is numerous. Central symmetry type, Tai Chi type corresponding type, rotary radiation type, asymmetric flower type, and so on, the style is rich. Among them, the Qing Dynasty appeared a round pattern with character stories and relatively free composition. The pattern of the character round has unique characteristics of the Times. On the basis of the aesthetic feeling of the round flower form, it integrates the plot of the characters, reflecting the characteristics of the social customs and aesthetic taste at that time, and establishes a bridge for the traditional pattern and custom illustration.

Dendrobium jizhuyeense (Orchidaceae; Epidendroideae) a new species from China: evidence from morphology and DNA

Dendrobium jizhuyeense, a new species from Sichuan, China, is described and illustrated in this study. Morphological study indicates that D. jizhuyeense is similar to D. hancockii, but differs in having oblong sepals, obovate-elliptic petals and an obovate lip, including a smaller stem, smaller leaf and different flower type. Molecular analyses based on nuclear and plastid markers indicate that D. jizhuyeense is closely related to D. hancockii, belonging to section Holochrysa.