Kinds Of Forests Research Articles

Plantation forestry: Carbon and climate impacts

Conifer forestry is expanding rapidly across western parts of the British Isles. This is promoted as good for climate, carbon and biodiversity. However, many spruce plantations are established by draining and disturbing peaty soils, which then release carbon and impair river ecosystems. This ‘viewpoint paper’ focuses on Scotland, and asks that investors and policy-makers recognise the damage being done by rapid afforestation and restocking. The author focusses on the drainage of peaty soils, and suggests that the incentives driving these changes are corrected in order to favour a better kind of forest.

A Comparative study on Biodiversity of Plant species between Natural forest and Coffee agro forest in Eastern Ghats of Andhra Pradesh, India

We studied plant biodiversity (trees, shrubs and herbs) in two kinds of forests, natural and coffee agro forests and comparing diversity of plant species between them. The natural forest contained 63 plant species in total, of which 44 were trees, 5 were shrubs, and 14 were herbs. The planted forest, on the other hand, contained 42 species of flora, including 35 trees, 1 shrub, and 6 herbs. In the natural forest, the ShannonWiener diversity indices for trees, shrubs, and herbs were 3.26, 1.53, and 2.57, respectively. In the coffee agro forest, it was 2.91 for tree species, 0.00 for shrub species, and 1.77 for herb species. Simpson diversity index were 0.95, 0.77 and 0.91 for trees, shrubs and herbs respectively in the natural forest. However, it was 0.92 for tree species, 0.00 for shrub species and 0.82 for herb species in the coffee agro forest. Jaccard’s similarity index showed that 72% species of trees, 20% species of shrubs and 33% species of herbs were same in natural and coffee agro forest.

Correlations between forest soil quality and aboveground vegetation characteristics in Hunan Province, China.

As a key component of terrestrial ecosystems, soil interacts directly with aboveground vegetation. Evaluating soil quality is therefore of great significance to comprehensively explore the interaction mechanism of this association. The purpose of this study was to fully understand the characteristics of aboveground vegetation, soil quality, and their potential coupling relationship among different forest types in Hunan Province, and to provide a theoretical basis for further exploring the mechanisms underlying soil-vegetation interactions in central China. We have set up sample plots of five kinds of forests (namely broad-leaved forest, coniferous forest, coniferous broad-leaved mixed forest, bamboo forest, and shrub forest) in Hunan Province. To explore the differences of vegetation characteristics and soil physical and chemical properties among the five stand types, variance analysis, principal component analysis, and regression analysis were used. Finally, we explored the coupling relationship between soil quality and aboveground vegetation characteristics of each forest. We found that there were significant differences in soil quality among the forest types, ranked as follows: shrub forest > bamboo forest > broad-leaved forest > mixed coniferous and broad-leaved forest > coniferous forest. In general, there was a negative correlation between vegetation richness and soil quality in the broad-leaved forest and the shrub forest, but they showed a positive correlation in the coniferous forest, the mixed coniferous and broad-leaved forest, and the bamboo forest. As a necessary habitat condition for aboveground vegetation, soil directly determines the survival and prosperity of plant species. These results indicated that for vegetation-soil dynamics in a strong competitive environment, as one aspect wanes the other waxes. However, in a weak competitive environment, the adverse relationship between vegetation and soil is less pronounced and their aspects can promote.

Physics‐based model to predict the acoustic detection distance of terrestrial autonomous recording units over the diel cycle and across seasons: Insights from an Alpine and a Neotropical forest

Abstract Passive acoustic monitoring of biodiversity is growing fast, as it offers an alternative to traditional aural point count surveys, with the possibility to deploy long‐term acoustic surveys in large and complex natural environments. However, there is still a clear need to evaluate how the frequency‐ and distance‐dependent attenuation of sound as well as the ambient sound level impact the acoustic detection distance of the soniferous species in natural environments over the diel cycles and across seasons. This is of great importance to avoid pseudoreplication and to provide relevant biodiversity indicators, including species richness, species abundance and species density. To address the issue of detection distance, we tested a field‐based protocol in a Neotropical rainforest (French Guiana, France) and in an Alpine coniferous forest (Jura, France). This standardized and repeatable method consists in a recording session of the ambient sound directly followed by an experiment using a calibrated white noise sound broadcast at different positions along a 100 m linear transect. We then used acoustic laws to reveal the basic physics behind sound propagation attenuation. We demonstrate that habitat attenuation in two different kinds of forests can be modelled by an exponential decay law with a linear dependence on frequency and distance. We also report that habitat attenuation, as first approximation, can be summarized by a single value, the coefficient of attenuation of the habitat. Finally, we show that the detection distance can be predicted knowing the contribution of each attenuation factor, the coefficient of attenuation of the habitat, the ambient sound pressure level and the amplitude and frequency bandwidth characteristics of the transmitted sound. We show that the detection distance mostly depends on the ambient sound and may vary by a factor of up to 5 over the diel cycle and across seasons. These results reinforce the need to take into account the variation of the detection distance when performing passive acoustic surveys and producing reliable biodiversity indicators.

Role of Biodiversity and Ecological Consequences in India

India has a diverse climate and topography; different kinds of forests, with a minimum of ten distinct bio-geographical areas, there are many as well as three biodiversity hotspots on the planet's surface. Because other native habitats have lost their native status, the forest currently houses the majority of terrestrial species. There is a vast network of protected areas in place, including 514 wildlife sanctuaries, there are 99 national parks in the United States, 18 biosphere reserves are included in the project, and several holy groves managed by native groups. Due to increased people in the world demands, land use changes, and the introduction of invasive alien species, forest degradation and biodiversity loss persist despite a favorable forest policy and a strong regulatory framework. The extent and loss of biodiversity must be constantly monitored, and individuals must be encouraged to join in large-scale biodiversity conservation rehabilitation.

A global meta-analysis of fruit tree yield and water use efficiency under deficit irrigation

Economical fruit trees are a kind of forest with great economic and ecological benefits, which has become an important cash source of many rural household incomes. However, the shortage of water resources has limited their development. Deficit irrigation (DI) is a novel water-saving irrigation method, but there is a risk of yield reduction in practice. Therefore, a meta-analysis was conducted to quantitatively analyze the impact of DI on fruit yield and water use efficiency (WUE) to explore the most suitable DI strategy for fruit trees. Overall, compared to full irrigation, DI decreased the fruit yield by 6.05% and increased WUE by 5.05%. However, the effectiveness of DI depended on DI factors, fruit tree varieties and environmental factors. In order to achieve a win-win goal of water-saving and yield increasing, a Win-Win analysis was conducted on collected data. It was found that DI was suitable for drought-tolerant tree varieties in the arid region with medium-textured and large bulk density soil. Adopting subsurface irrigation methods for low or moderate deficit (Irrigation limit ＞55%θf) before the fruit growth stage (i.e., bud burst to leafing stage and flowering to fruit set stage) was recommended. Our findings can provide implications for applying DI to fruit trees.

IOT Based Forest Fire Prediction and Detection

In recent days, satellite-based surveillance gadget is used to notice wooded area hearth however this works when fireplace is unfold in the massive area. So these methods are no longer efficient. According to a survey, about 80% losses are accumulated in the woodland due to the late detection of fire. To overcome this two, we proposed a new method to predict and the fire at early stages . In our proposed method the hardware kit with temperature and humidity sensor is connected to the PC and it is deployed in many places in the forest area. The PC is connected with the Internet . The details collected using sensor is upload with the fixed interval time. Then this data is uploaded to the cloud application. If the forest temperature is increased abnormally this will detect send notification to the forest authorities then the fire alarm will rung .It can also predict the fire that will be occur in future by using machine learning . This is done by using KNN algorithm. This can be used in all kind of forest and considering the effectiveness of the sensors it be also used in industrial areas.

Grasses of six Wildlife Sanctuaries in North Andaman Islands, India

study on the grass flora of 6 Wildlife Sanctuaries of North Andaman Island was surveyed. True grasslands are absent in the study area as these regions mainly composed of Littoral and Inland kinds of forests with thick and closed canopy. Nineteen grass species under eighteen genera are included in the present study and described in detail.

Phytolith assemblages in modern top soils under plant communities of Northern and Western Altay, Russia

We investigated 120 assemblages of phytoliths from modern top soils of 40 different plant communities of Northern and Western Altay region of Russia. The samples were collected from elevations between 360 m and 2360 m above sea level. Using statistical analyses, it was discovered that many communities produce sufficiently distinct assemblages based on standard morphotypes. Specifically we studied 6 kinds of forests (larch, spruce, fir, pine, cedar pine and birch-dominated), 3 kinds of steppes (true, meadow and petrophytic), 5 kinds of meadows (steppe-like, upland dry, wet floodplain, subalpine, alpine), alpine tundra, and mountain shrubland communities. The communities were not evenly sampled, with more redundancy in some types than in others. Using PCA, it was possible to reveal the few morphotypes most responsible for distinguishing different communities, e.g., low conical rondels, rondel sum, long cell sum, lanceolate cells with massive base, and bulliform cell sum.

Ascomicetos asociados a angiospermas en el bosque mesófilo de montaña del centro de Veracruz, México

Antecedentes y Objetivos: Aún se conoce poco de los hongos ascomicetos asociados a angiospermas que habitan en el bosque mesófilo de montaña en México, por lo que el objetivo del presente trabajo es incrementar el conocimiento de estos hongos que habitan en ese tipo de vegetación en el estado de Veracruz, México.Métodos: Se realizaron muestreos oportunistas en cinco localidades con fragmentos de bosque mesófilo de montaña en los municipios Coatepec, San Andrés Tlalnelhuayocan y Xalapa. Los especímenes se estudiaron macro y microscópicamente siguiendo las técnicas rutinarias para ascomicetos, utilizando literatura especializada para su identificación. Siempre que fue posible se identificó el hospedero sobre el cual estaban creciendo.Resultados clave: Se encontraron 13 especies de ascomicetos pertenecientes a los órdenes Diaporthales (familia Gnomoniaceae), Helotiales (Dermateaceae, Helotiaceae), Hypocreales (Bionectriaceae, Niessliaceae), Orbiliales (Orbiliaceae) y Pleosporales (Massarinaceae, Montagnulaceae). De las especies estudiadas siete son nuevos registros para México, dos para Veracruz, una pertenece a una especie no descrita y tres son especies previamente citadas para el país, pero se añaden nuevos datos descriptivos. Hydropisphaera suffulta se encontró creciendo de manera natural con su anamorfo Acremonium sp. Además, se cita un caso de micoparasitismo entre Letendraea helminthicola y Helminthosporium velutinum. Los hongos se encontraron creciendo en individuos de las familias Altingiaceae (Liquidambar styraciflua), Boraginaceae (Varronia sp.), Fabaceae (Inga inicuil), Fagaceae (Quercus sp.), Piperaceae (Piper spp.) y cuatro sobre madera de origen desconocido.Conclusiones: El bosque mesófilo de montaña es un reservorio importante de la diversidad de hongos ascomicetos en México y, en este caso, para el estado de Veracruz. En el presente estudio se citan especies de las familias Montagnulaceae y Niessliaceae, que hasta ahora no se habían registrado en este tipo de vegetación. Además se encontraron siete especies que son nuevos registros para México, dos más para Veracruz, y se registra una especie al parecer no descrita del género Belonopsis.

Snowfall interception in a deciduousNothofagusforest and implications for spatial snowpack distribution

AbstractNative Nothofagus forests in the midlatitude region of the Andes Cordillera are notorious biodiversity hot spots, uniquely situated in the Southern Hemisphere such that they develop in snow‐dominated reaches of this mountain range. Spanning a smaller surface area than similar ecosystems, where forests and snow coexist in the Northern Hemisphere, the interaction between vegetation and snow processes in this ecotone has received lesser attention. We present the first systematic study of snow–vegetation interactions in the Nothofagus forests of the Southern Andes, focusing on how the interplay between interception and climate determines patterns of snow water equivalent (SWE) variability. The Valle Hermoso experimental catchment, located in the Nevados de Chillán vicinity, was fitted with eight snow depth sensors that provided continuous measurements at varying elevations, aspect, and forest cover. Also, manual measurements of snow properties were obtained during snow surveys conducted during end of winter and spring seasons for 3 years, between 2015 and 2017. Each year was characterized by distinct climatological conditions, with 2016 representing one of the driest winters on record in this region. Distance to canopy, leaf area index, and total gap area were measured at each observational site. A regression model was built on the basis of statistical analysis of local parameters to model snow interception in this kind of forest. We find that interception implied a 23.2% reduction in snow accumulation in forested sites compared with clearings. The interception in these deciduous trees represents, on average, 23.6% of total annual snowfall, reaching a maximum measured interception value of 13.8‐mm SWE for all snowfall events analysed in this research.

L-Band UAVSAR Tomographic Imaging in Dense Forests: Gabon Forests

Developing and enhancing strategies to characterize actual forests structure is a timely challenge, particularly for tropical forests. P-band synthetic aperture radar (SAR) tomography (TomoSAR) has previously been demonstrated as a powerful tool for characterizing the 3-D vertical structure of tropical forests, and its capability and potential to retrieve tropical forest structure has been discussed and assessed. On the other hand, the abilities of L-band TomoSAR are still in the early stages of development. Here, we aim to provide a better understanding of L-band TomoSAR capabilities for retrieving the 3-D structure of tropical forests and estimating the top height in dense forests. We carried out tomographic analysis using L-band UAVSAR data from the AfriSAR campaign conducted over Gabon Lopé Park in February 2016. First, it was found that L-band TomoSAR was able to penetrate into and through the canopy down to the ground, and thus the canopy and ground layers were detected correctly. The resulting TomoSAR vertical profiles were validated with a digital terrain model and canopy height model extracted from small-footprint Lidar (SFL) data. Second, there was a strong correlation between the L-band Capon beam forming profile in HH and HV polarizations with Land Vegetation Ice Sensor (LVIS) Level 1B waveform Lidar over different kinds of forest in Gabon Lopé National Park. Finally, forest top height from the L-band data was estimated and validated with SFL data, resulting in a root mean square error of 3 m and coefficient of determination of 0.92. The results demonstrate that L-band TomoSAR is capable of characterizing 3-D structure of tropical forests.

Assessing regional drought impacts on vegetation and evapotranspiration: a case study in Guanacaste, Costa Rica.

This research investigates ecological responses to drought by developing a conceptual framework of vegetation response and investigating how multiple measures of drought can improve regional drought monitoring. We apply this approach to a case study of a recent drought in Guanacaste, Costa Rica. First, we assess drought severity with the Standard Precipitation Index (SPI) based on a 64-yr precipitation record derived from a combination of Global Precipitation Climatology Center data and satellite observations from Tropical Rainfall Measuring Mission and Global Precipitation Measurement. Then, we examine spatial patterns of precipitation, vegetation greenness, evapotranspiration (ET), potential evapotranspiration (PET), and evaporative stress index (ESI) during the drought years of 2013, 2014, and 2015 relative to a baseline period (2002-2012). We compute wet season (May-October) anomalies for precipitation at 0.25° spatial resolution, normalized difference vegetation index (NDVI) at 30-m spatial resolution, and ET, PET and ESI derived with the Priestley-Taylor Jet Propulsion Laboratory (PT-JPL) model at 1-km spatial resolution. We assess patterns of landscape response across years and land cover types including three kinds of forest (deciduous, old growth, and secondary), grassland, and cropland. Results show that rainfall in Guanacaste reached an all-time low in 2015 over a 64-yr record (wet season SPI=-3.46), resulting in NDVI declines. However, ET and ESI did not show significant anomalies relative to a baseline, drought-free period. Forests in the region exhibited lower water stress compared to grasslands and had smaller declines, and even some increases, in NDVI and ET during thedrought period. This work highlights the value of using multiple measures to assess ecosystem responses to drought. It also suggests that agricultural land management has an opportunity to integrate these findings by emulating some of the characteristics of drought-resilient ecosystems in managed systems.

Mesozoic Conifers of India – Megafossils – an Overview

Critical assessment is given of the fossil conifers (gymnospersm) reported and described from the Upper Triassic to Lower Cretaceous rocks of the Indian sub–continent. Morphology and anatomy of woods (stems) roots, twigs, leaves and fertile structures both male and seed-bearing fructifications and isolated petrified seeds are included in this review. Majority of extinct conifers belong to Podocarpaceae and Araucariaceae. Representatives of Taxodiaceae, Cupressaceae and Taxaceae are also reported in this paper. This account will enhance our knowledge of the Mesozoic vegetation, distribution and kind of forests and in tracing the phylogeny of controversial taxa of extant conifers. Palynology and stratigraphy are not discussed in this paper. A detailed review of literature on Mesozoic conifers of India is given.

INFLUÊNCIA DA TOPOGRAFIA E DA ABERTURA DO DOSSEL NA ESTRUTURA DO COMPONENTE HERBÁCEO-ARBUSTIVO EM DOIS FRAGMENTOS FLORESTAIS NA PLANÍCIE DE INUNDAÇÃO DO ALTO RIO PARANÁ

As florestas secundárias têm se expandido significativamente nos últimos anos. Dada a importância que as mesmas têm assumido nos planos de restauração e conservação, um entendimento mais abrangente sobre sua organização e funcionamento, levando em consideração as diferentes formas de vida, torna-se necessário. A fim de comparar a composição e estrutura do componente herbáceo-arbustivo entre dois fragmentos florestais com diferentes idades (RFID- remanescente florestal e FLT- floresta de 57 anos), bem como a influência relativa da topografia e abertura do dossel na organização da comunidade, dados vegetacionais e ambientais foram obtidos em 24 parcelas contíguas em cada área. Utilizaram-se correlogramas I de Moran e testes de Mantel parcial para verificar a correlação entre dados da comunidade e variáveis ambientais. Para testar diferenças entre as áreas amostrais aplicaram-se testes t de Student. As lianas mostraram-se espacialmente estruturadas (agregadas) em ambos os ambientes com um padrão semelhante ao observado para cota média. No RFID, as distâncias de cota média correlacionaram-se positivamente com as distâncias das matrizes, densidade de arbóreas e riqueza total e negativamente com as distâncias da matriz densidade de herbáceas, na FLT correlações significativas foram observadas somente entre as distâncias da matriz, densidade de arbóreas e as distâncias de desnível máximo e entre distâncias dos dados de cota e distâncias da matriz de riqueza total. Somente o componente arbustivo e abertura do dossel não apresentaram diferença significativa entre as duas áreas. A estrutura do estrato herbáceo-arbustivo tem se mostrado associada mais fortemente às características topográficas que à abertura do dossel.

A Phytosociological of Plant Communities and Biodiversity in the East-South of Idna Village-Hebron of Palestine

This paper presents a floristic and vegetation study of the territories of the Idna-Hebron of Palestine, corresponding to one area with three different names as Abu Salman Forest Reserve, Khallet Osman mountains, and Hamra Aslimi. These sites are very important at a local level of the flora with a high endemic rate. The floristic analysis revealed the existence of 48 species, of which 10 (20.83%) are endemic endemic. Seventeen plots of vegetation distributed in one area dominated and have been analyzed in this study. Methodology, the phytosociological approach is based on the Braun-Blanquet method. The results revealed three different kinds of forests, one dominated by the endemic Pino halepensis-Quercetum lookii, which is peculiar to the inframediterranean dry-thermomediterranean environments, with the terra rossa and brown rendzinas territory. The second type of forest is dominated by the Pistacio palaestinae-Ceratonietum silique, which is growing in the dry-subhumid ombrotype and the terra rossa and brown rendzinas territory. The third group of the forest of Khallet Osman and Hamra Aslimi dominated by Quercus lookii-Tamaricetum palestineae. Finally, in this study there are three associations and tow alliances are proposed as new Syntaxa based on statistical and phytosociological analyses in the study area.

Macrofungal diversity of holm-oak forests at the northern limit of their distribution range in the Iberian Peninsula

ABSTRACTGiven the current gap in knowledge concerning the macrofungal diversity of holm-oak forests at the northern limit of their distribution range and in the Basque Country, a mycocoenological study was conducted by sampling 23 randomly selected permanent plots from 6 holm-oak forests. To obtain a better understanding of the macrofungal diversity distribution pattern on a regional scale, forests from both the temperate and Mediterranean-type climate regions of the Basque Country were selected, covering all their phytocoenological variation. After 4 years of sampling, a total of 377 macrofungal species were collected: 209 ectomycorrhizal species, 86 humicolous saprotrophs, 40 saprotrophs on litter, 36 lignicolous saprotrophs, 3 coprophilous saprotrophs and 3 parasitic species. Species considered characteristic of this kind of forest, such as Cortinarius aurilicis, Cortinarius callochrous, Cortinarius ionochlorus, Hygrophorus leucophaeo-ilicis, Hygrophorus persoonii, Hygrophorus russula, Lactarius atlanticus, Lactarius ilicis, Leccinellum lepidum, were recorded all over the territory, but Mediterranean forests were richer in species and more productive in sporocarps than temperate ones. Species assemblage was found to change gradually at local scale from temperate to Mediterranean climate zones, and was distinct to each phytocoenological association with all species, with ectomycorrhizal species and with saprotrophs.

Biodiversity of Mushrooms in Conservative Forest in Dansai District of Loei Province, Thailand.

Dansai District is located in Loei Province, Northeast Thailand, rich in natural resources and composes of many kinds of forests, such as evergreen forests and mixed-deciduous forests. The objectives of the study are to determine the diversity of mushrooms and investigate the values of the forest influencing the community way of life and exploration of problems and guidelines for developing the forest along with sufficiency economy theory. The study includes compilation of data from past studies, semi-structured interview with the local communities and discussion with focus group. The survey was done once a month during the rainy season from May to August in 2012 and 2013. The results of the survey revealed 56 species belonging to 26 families, 38 genera. A total of 52 mushroom species belong to Basidiomycota, while 4 species belong to Ascomycota. The community forest remains fertile due to the conservation effort by the community leaders and a group of villagers. A community forestry board were set up to conserve the forest and proposed to the government at Dansai Vocational Community College to officially declare the forest as a formal community forest. The conservation management relied upon the kinship relations, seniority, and religious belief along with the enforcing authorities. If an encroacher is found, he would be fined according to the regulations and defamed publicly. However, encroachment still exists. In general, community forest is valuable and directly affected the villagers' ways of life in which they could generate income from the forest, particularly reducing the daily expenses and promoting their socio-cultural perspective.

Opportunities for coppice management at the landscape level: the Italian experience

Abstract: Coppice silviculture has a long tradition in Italy. Societal demands have led to the development of forest management techniques for integrating wood production with other kinds of forest uses and regulations have been issued to limit forest degradation. In Italy, 35% of the national forest cover is currently managed under coppice silvicultural systems that provide 66% of the annual wood production. Fuel-wood demand is increasing and a large amount of fuel-wood is currently imported in Italy. Modern coppice practices differ from those adopted in the past and may have a reduced impact on ecosystem characteristics and processes. Nevertheless, coppice silviculture has a bad reputation mostly on grounds that are beyond economic, technical and ecological rationales. Neither cessation of use nor a generalized conversion from coppice to high forest are likely to respond simultaneously to the many demands deriving from complex and articulated political and economic perspectives operating at global, European, national, regional and forest stand-level scales. Different approaches of modern silviculture to coppice successfully tested in Italy for more than a decade are illustrated. We propose to combine different options at the stand and sub-stand level, including either development without human interference or conversion to high forest, and to apply these approaches within the framework of novel forest management plans and regionally consistent administrative procedures. This bottom-up approach represents a potential solution to the socio-economic and environmental challenges affecting coppicing as a silvicultural system.

Revision of the Oriental genus Horniella Raffray (Coleoptera, Staphylinidae, Pselaphinae).

The Oriental pselaphine genus Horniella Raffray, 1905 (tribe Tyrini: subtribe Somatipionina) is redefined and revised. Twenty-five new species are described: H. centralis Yin & Li, sp. n., H. confragosa Yin & Li, sp. n., H. dao Yin & Li, sp. n., H. hongkongensis Yin & Li, sp. n., H. nakhi Yin & Li, sp. n., H. schuelkei Yin & Li, sp. n., H. sichuanica Yin & Li, sp. n., H. simplaria Yin & Li, sp. n., and H. tianmuensis Yin & Li, sp. n. from China, H. himalayica Yin & Li, sp. n. from Nepal and North India, H. asymmetrica Yin & Li, sp. n., H. burckhardti Yin & Li, sp. n., H. intricata Yin & Li, sp. n., H. kaengkrachan Yin & Li, sp. n., H. khaosabap Yin & Li, sp. n., H. loebli Yin & Li, sp. n., H. phuphaman Yin & Li, sp. n., H. prolixo Yin & Li, sp. n., and H. schwendingeri Yin & Li, sp. n. from Thailand, H. philippina Yin & Li, sp. n. from the Philippines, H. awana Yin & Li, sp. n., H. gigas Yin & Li, sp. n., H. pilosa Yin & Li, sp. n., and H. smetanai Yin & Li, sp. n. from Malaysia, and H. cibodas Yin & Li, sp. n. from Indonesia. The two previously described species, H. hirtella Raffray, 1901 (type species) from Sri Lanka and H. falcis Yin & Li, 2010 from China are redescribed, and a lectotype is designated for H. hirtella. Illustrations of habitus and important diagnostic features, an identification key, and distributional maps for all species are provided. Eleven unidentified species represented only by females are left unnamed. Illustrations of the habitus and the genital complex, and label data of these species are given to facilitate future study. All available data indicates that species of Horniella typically inhabit leaf litter of various kinds of forests, and can be most efficiently collected by sifting and use of Winkler-Moczarski extractors.