Distinct Genera Research Articles

A review of extantTudivasumRosenberg & Petit, 1987 (Neogastropoda: Turbinellidae) and description of three new species from Western Australia

ABSTRACTTudivasum Rosenberg & Petit, 1987 is a morphologically distinct gastropod genus of low diversity. All but one species are known from Australia and they occur from the intertidal zone down to hundreds of metres on the continental shelf. These carnivorous gastropods are thought to have intracapsular development. The six currently recognized extant species are reviewed here and their geographical ranges clarified. Two new species, Tudivasum chaneyi n. sp. and T. ashmorense n. sp., are described from Ashmore Reef, Western Australia, and are characterized by differences in protoconch colour and shell sculpture. The third new species, T. westrale n. sp., is described from the mid-west coast of Western Australia, where it has long been misidentified as T. spinosum (H. Adams & A. Adams, 1864). We generated a molecular phylogeny based on mitochondrial DNA sequence data to test morphological species concepts and reconstruct relationships among four of the described species. High levels of divergence within one of the new species could indicate an additional cryptic species.

<p><strong>The Brazilian Atlantic Forest genus <em>Bocagea</em> (Annonaceae) revisited, with two new species</strong></p>

Bocagea, a distinctive genus of tribe Bocageeae (Annonaceae), is revisited here. It is endemic to the Brazilian Atlantic Forest and has been for almost 200 years represented by only two species, B. longepedunculata and B. viridis. Recent collections from Espírito Santo and São Paulo States produced two new species, described here. The species of Bocagea are rare plants, all of them classified at least as endangered.

<strong><em>Hyaloterminalis</em>, a novel genus of Coryneaceae in order Diaporthales </strong>

The dematiaceous coelomycete Hyaloterminalis alishanensis gen. et sp. nov. (Coryneaceae, Diaporthales, Sordariomycetes) is introduced in this paper. It was isolated from dead branches of Cerasus sp. from the Ali Mountain, Taiwan. Coryneum was previously the only genus in Coryneaceae, and morphological similarity of Hyaloterminalis with the type genus is limited to broadly fusiform, brown conidia. Hyaloterminalis differs from Coryneum in having pycnidial conidiomata, persistent paraphyses and conidiophore morphology, with a long narrow hyaline tip to the apical cell and hyaline basal cells. Multigene phylogenetic analyses, using a combined LSU, ITS and TEF1-α sequence data generated from maximum likelihood, maximum parsimony and MrBayes analyses, confirmed that Hyaloterminalis forms a distinct lineage within Coryneaceae and its establishment as a new genus is well-supported. The new taxon is described, illustrated and compared with Coryneum. The ITS (MH861215) and LSU (MH872982) sequences obtained from the ex-type strain of Talekpea foeticia, confirm its status as a member in Coryneaceae. Therefore, Talekpea is accepted as a distinct genus in Coryneaceae.

Taxonomic status of genera Nodularia, Middendorffinaia and Inversiunio (Bivalvia: Unionidae) from South-East Asia: morphometric, genetic and GenBank data

Recent investigations of East Asian freshwater mussel genera Nodularia, Middendorffinaia and Inversiunio confirmed validity of the taxa, while their composition and taxonomic uncertainty concerning classification of these genera within a specific subfamily are still in question. The aim of the present study is to clarify the taxonomy and systematics of Nodularia and Middendorffinaia genera from the Russian Far East and Inversiunio from Japan, using a multiple dataset approach that combines morphology of glochidia, detailed conchological analyses with morphometry of adult and glochidial shells, and a molecular technique involving COI barcoding marker. As a result, three genetically distinct and highly divergent lineages were recognized confirming the existence of three distinct genera. The existence of five Nodularia species in Southeast Asia is shown. One of the sequences is shown to be incorrectly assigned to N. jourdyi, while in fact it also represents N. douglasiae, according to the BIN system. Existence of a single Nodularia species, namely N. douglasiae, and a single Middendorffinaia species, namely M. mongolica, in the Russian Far East is supported. We conclude that so-called comparatory species Nodularia amurensis, N. schrencki, and N. vladivostokensis are junior synonyms of the species Nodularia douglasiae; the comparatory species Middendorffinaia ussuriensis and M. dulkeitiana are junior synonyms of the species Middendorffinaia mongolica. Within Inversiunio specimens from Japan four species were recognized based on types of glochidial microsculpture of shells and genetic data. Gene sequences of Inversiunio verrucosus, endemic to the Seomjingang River basin in South Korea, and I. yanagawensis from Kyushu Island in Japan are very similar and they can be regarded as the same species, with Inversiunio verrucosus as a junior synonym of Inversiunio yanagawensis. Mussels from Honshu Island first referred to I. yanagawensis are shown to be a separate species.

Phylogenetic relationships and systematics of the jumping spider genus Colopsus with the description of eight new species from Sri Lanka (Araneae: Salticidae)

ABSTRACT The Sri Lankan jumping spider species first described as Colopsus cancellatus and its close relatives are an understudied yet charismatic part of the fauna of the island. Here, using molecular sequence data (cytochrome c oxidase subunit I, 18S rRNA, 28S rRNA, and histone H3), and a variety of methods we tested the validity of this genus and recover three well-supported clades in the ML analysis: Colopsus and Evarcha in two separate clades with Burmattus in-between. In the MP analysis Colopsus and Evarcha form two separate clades. The Sri Lanka Colopsus previously misplaced in Evarcha formed a distinct clade in both the ML and MP topologies. Thus, Colopsus is restored as a distinct genus. Pancorius is recovered as non-monophyletic. We additionally describe the following new species: Colopsus cinereus sp. nov., C. ferruginus sp. nov., C. magnus sp. nov. and C. tenuesi sp. nov., Evarcha latus sp. nov., Pancorius alboclypeus sp. nov., P. altus sp. nov and P. athukoralai sp. nov. Pancorius is recorded for the first time from Sri Lanka. http://www.zoobank.org/urn:lsid:zoobank.org:pub:09916E07-5979-4EFF-86C4-43BDA2FC9EC2

Hantzschia subandina Frenguelli (Bacillariophyceae): Morphology, status and typification, as well as the description of a new species of Nitzschia

Backgrounds and aims: Hantzschia Grunow is a genus characterized by having valves asymmetric to the apical axis, markedly dorsiventral, with an eccentric raphe on the ventral side supported by fibulae and ‘hantzschioid’ symmetry of the frustules. In 1942 J. Frenguelli published the flora of diatoms of Neuquén province (Argentina), work in which he erected Hantzschia subandina as a new species for science. This work investigates the identity and taxonomic status of this taxon. M&M: Original material of Hantzschia subandina of the Frenguelli Collection was analysed with light and scanning electron microscopy. Results: Observations on the material suggested two different species were included in the concept of this species assigned originally to the genus Hantzschia. Furthermore, neither of the two species present are assignable to the genus Hantzschia. Nitzschia subandina (Frenguelli) comb. nov. has a large central nodule and a slight asymmetry about the apical axis; it also produces frustules with nitzschioid and hantzschioid symmetry. We designate a lectotype for this taxon. In addition, another diatom in the same material with slight asymmetry about the apical axis has distinctive ornamentation on the mantle of the valve and produces nitzschioid and hantzschioid frustules. For this taxon we tentatively assign it to the non-monophyletic genus Nitzschia, describing it as N. araucana sp. nov. We discuss the possible phylogenetic position of this new taxon, and suggest that the genus Nitzschia is “the next Navicula” ready to be further subdivided into distinct genera.

Mycosphaerangium and Neomelanconium (Cenangiaceae) are closest relatives: phylogenetic relationships, morphology and a new species

Based on molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, RPB1, RPB2 and TEF1 sequences and by morphological evidence, the genus Mycosphaerangium is shown to be the closest relative of Neomelanconium, and confirmed to be a member of the Cenangiaceae (Leotiomycetes). While Mycosphaerangium and Neomelanconium share many traits like similar conidia, conidiogenesis, asci and ascospores, their apothecia differ particularly in excipular features and are therefore recognized as distinct genera. Mycosphaerangium tiliae, described from North America, is excluded from the genus but shown to represent the sexual morph of the European Neomelanconium gelatosporum, and it is therefore synonymized with the latter. Based on morphology, Neomelanconium deightonii is assumed to be congeneric with Neomelanconium gelatosporum, and it is lectotypified. Dermatea tetraspora and Phaeangium magnisporum, the basionyms of Mycosphaerangium tetrasporum and M. magnisporum, respectively, are lectotypified as well, and for M. tetrasporum, the asexual morph is recorded for the first time. Mycosphaerangium quercinum sp. nov. is described as a new species from various Quercus hosts in Europe, where it is shown to be widely distributed. It morphologically and ecologically closely resembles the North American M. tetrasporum, but differs in paraphysis and ascospore morphology and by croziers at its ascus base. The three accepted species of Mycosphaerangium and the two of Neomelanconium are described and illustrated. Mycosphaerangium magnisporum, M. quercinum and M. tetrasporum are recorded to be constantly associated with species of Coryneum, indicating a fungicolous habit, but no evidence for fungal associations has been found in Neomelanconium deightonii and N. gelatosporum.

The Enigmatic Thelebolaceae (Thelebolales, Leotiomycetes): One New Genus Solomyces and Five New Species.

The family Thelebolaceae belongs to the order Thelebolales, class Leotiomycetes, and contains 22 genera. In this study, we introduce a new genus Solomyces gen. nov. in the family Thelebolaceae, which is supported by morphological observation and multilocus-based [internal transcribed spacers (ITS) + LSU and ITS + LSU+ MCM7+ EF1A+ RPB2] phylogenetic analysis. Maximum-likelihood and Bayesian phylogenetic inference analyses indicated that Solomyces is a distinct genus within this family. The new genus is compared against related Thelebolaceae genera, and its description and illustration are provided. This genus comprises one new species and one unnamed species (including two strains). We also report the addition of four new species – Pseudogymnoascus shaanxiensis, Pseudogymnoascus guizhouensis, Pseudogymnoascus sinensis, and Geomyces obovatus – in the family Thelebolaceae and present their morphological and phylogenetic characterizations.

The first record of the trematode Urogonimus certhiae (Trematoda: Leucochloridiidae) in the Eurasian nuthatch Sitta europaea

Adult trematodes of the genus Urogonimus Monticelli, 1888 were found in the cloaca of a male Eurasian nuthatch Sitta europaea Linnaeus, 1758, the carcass of which was found in the Vyritsa Settlm. (Leningrad Prov., Northwest Russia). Based on morphological characters, the worms were identified as U. certhiae McIntosh, 1927. This is the first record of this parasite from the nuthatch and from Northwest Russia. We analysed nucleotide sequences of ITS1-5.8S-ITS2 rDNA of this species and found important differences with U. macrostomus (Rudolphi, 1803). Genetic and morphological data indicated that U. certhiae and U. macrostomus were two separate species. Phylogenetic analysis confirmed that Urogonimus and Leucochloridium Carus, 1835 were two distinct genera.

Diversity analysis of ACC deaminase producing bacteria associated with rhizosphere of coconut tree (Cocos nucifera L.) grown in Lakshadweep islands of India and their ability to promote plant growth under saline conditions

ACC deaminase producing Plant growth promoting rhizobacteria (PGPR) offers a great promise for ameliorating the negative impacts of salinity stress manifested on plants. In this context, 28 rhizospheric bacteria associated with ACC deaminase potential (198−1069 nmol α-ketobutyrate mg protein−1 h−1) were isolated from 5 different islands of Lakshadweep, union territory, India- Agatti, Kavaratti, Bangaram, Kadmat, and Thinnakara islands using DF-minimal medium. The diversity of cultivable ACC deaminase producing bacteria was analysed by PCR-RFLP (Restriction Fragment Length Polymorphism) method using three endonucleases AluI, MspI and HaeIII which led to the grouping of these isolates into six clusters at 80 % similarity index. Subsequently, isolates were functionally characterized for various PGP traits such that indole-3-acetic acid (IAA) production (∼10−80 μg mL−1); 16 isolates had phosphate solubilizing potential ranging from ∼19 to 88 P mg L−1 ; siderophore and ammonia production abilities were observed in 5 and 24 isolates, respectively while two strains tolerated up to 8% NaCl. Phylogenetic analysis of 16S rRNA gene sequences of representative strain from each cluster revealed that twenty-eight ACC deaminase producing PGPR belong to eight distinct genera: Pseudomonas, Bacillus, Azospirillum, Azotobacter, Escherichia, Paenibacillus, Burkholderia, and Klebsiella. Two isolates, CO1 (Pseudomonas putida) and CO8 (Bacillus paramycoides) were evaluated for plant growth promoting effects on French bean (Phaseolus vulgaris) under salinity (100 mM NaCl) stress. Both the selected isolates in consortium form significantly increased the root length, shoot length, root fresh and dry weight, shoot fresh and dry weight of French bean seedlings exposed to salinity stress, compared to non-inoculated control plants. The co-inoculation with selected strains CO1 and CO8 has significantly improved chlorophyll concentration, relative water content, membrane stability index, gas exchange parameters including net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E) and water use efficiency of French bean plants by ∼100 %, ∼85 %, ∼40 %, ∼198 %, ∼80 %, ∼70 % and ∼75 %, respectively under saline conditions in comparison with non-inoculated plants. Moreover, the consortium treated French bean plants showed lower levels of stress-induced ethylene by 38 %, electrolyte leakage and Malondialdehyde (MDA) content by ∼15 % under salt stress compared to non-inoculated ones. This study unveiled the potential of halotolerant strains, Pseudomonas putida and Bacillus paramycoides as French bean biofertilizers in mitigating the adverse effects of salinity in plant growth in sustainable agriculture.

<p><strong><em>S</em></strong><strong><em>arcopeltis gen. nov. </em></strong><strong>(Gigartinaceae, Rhodophyta), with <em>S</em>. <em>skottsbergii comb. nov. </em>from southern South America and<em> S. antarctica</em> <em>sp. nov.</em> from the Antarctic Peninsula</strong></p>

Gigartina skottsbergii is the currently accepted name for the large, peltate species of Gigartinaceae distributed in Argentina, Chile, and along the Antarctic Peninsula. However, phylogenetic analyses of DNA sequences for more than twenty years indicate that two species are passing under the name G. skottsbergii, and both DNA sequences and morpho-anatomy indicate that the species are assignable to an undescribed genus. To formally validate the new genus and species, we performed next generation sequencing (NGS) on the lectotype material of G. skottsbergii to document its genetic identity and obtained its complete mitogenome and partial plastid genome. Phylogenetic analysis of rbcL and cox1 sequences of the lectotype along with recent collections of G. skottsbergii from southern South America and Antarctica, confirmed the generic distinction and the presence of two morphologically similar taxa. We propose Sarcopeltis gen. nov., containing the generitype S. skottsbergii comb. nov. from southern South America, and S. antarctica sp. nov. from the Antarctic Peninsula. Sarcopeltis is characterized by the following suite of features: 1) peg-like secondary haptera that adhere to the substratum, 2) absence of an envelope surrounding each cystocarp, 3) presence of extensive, terminal, tubular gonimoblast filaments that fuse with surrounding vegetative cells, and 4) tetrasporangia formed from secondary filaments entirely in the medulla. This study demonstrates that genetic analysis of type material, together with recently obtained DNA sequences from field collected specimens, can provide clear and objective taxonomic conclusions.

A new species of Nidirana from the N. pleuraden group (Anura, Ranidae) from western Yunnan, China.

The Music Frog genus Nidirana was recently resurrected as a distinct genus and contains 14 species distributed in subtropical eastern and southeastern Asia. The species diversity of Nidirana is dramatically underestimated, and half of its species was described in the last five years. In this study, Nidirana occidentalis sp. nov., a new species of Music Frog from western Yunnan, China, is proposed based on morphological and molecular evidences. The new species was previously misidentified as N. pleuraden, but can be distinguished from the true N. pleuraden from eastern Yunnan, and all other congeners, by a combination of morphological characteristics, and significant divergence in the mitochondrial genes (≥ 5.1% in 16S and ≥ 8.9% in CO1). Nidirana occidentalis sp. nov. is assigned to the N. pleuraden group on the basis of morphological characters, but its phylogenetic placement remains unresolved due to weak branch support. Geographically, these two species are isolated by the Red River in Yunnan, supporting the hypothesis that the Red River is an important geographical barrier that drives speciation in flora and fauna. Nidirana occidentalis sp. nov. represents the second species of N. pleuraden group and the 15th species of the genus.

Species delimitation, environmental cline and phylogeny for a new Neotropical genus of Cryptinae (Ichneumonidae).

A morphologically unusual Cryptini, Cryptoxenodon gen. nov. Supeleto, Santos & Aguiar, is described and illustrated, with a single species, C. metamorphus sp. nov. Supeleto, Santos & Aguiar, apparently occurring in two disjunct populations in northern and southeastern South America. The highly dimorphic female and male are described and illustrated. The phylogenetic relationships of the new genus are investigated using a matrix with 308 other species of Cryptini in 182 genera, based on 109 morphological characters and molecular data from seven loci. The analyses clearly support Cryptoxenodon gen. nov. as a distinct genus, closest to Debilos Townes and Diapetimorpha Viereck. Species limits and definition are investigated, but despite much morphological variation the analyses at the specimen level do not warrant the division of the studied populations into separate species. The considerable morphological variation is explored with principal component analyses of mixed features, and a new procedure is proposed for objective analysis of colors. The relationship of color and structural variation with altitude and latitude is demonstrated and discussed, representing an important case study for Ichneumonidae. Externally, Cryptoxenodon gen. nov. can be recognized mainly by its unusually large mandibles, but other diagnostic features include clypeus wide; sternaulus complete, distinct and crenulate throughout; areolet closed, about as long as pterostigma width; petiole anteriorly with distinct triangular projection on each side, spiracle near posterior 0.25; propodeum without posterior transverse carina; and propodeal apophyses conspicuously projected.

Allocybaeina littlewalteri (Araneae: Cybaeidae): a new genus and species endemic to northwestern California.

Various undescribed Cybaeina Chamberlin Ivie (Araneae: Dictynoidea: Cybaeidae) and Cybaeina-like taxa are known from forested habitats in the west coast of North America. Most have very restricted ranges within the northern portion of the Californian Floristic Province, a well-known biodiversity hotspot. Here we describe Allocybaeina Bennett gen. nov. and its single included species, Allocybaeina littlewalteri Bennett spec. nov. This infrequently collected species is restricted to forested habitat in a small area of the coastal watersheds of southern Humboldt and western Mendocino Counties in northwestern California, U.S.A. In addition to descriptions we provide diagnoses, illustrations, a distribution map, and discuss conservation implications for this distinctive new genus and species.

Phytopythium: origin, differences and meaning in modern plant pathology

Abstract The genus Phytopythium is a relatively new group of organisms distinguished from the Pythium genus. These are organisms closely related to Pythium and Phytophthora, with similar structure and biology. Despite many similarities, this genus is characterised by several morphological features that allow it to be easily identified. Until now, more than 20 species belong to this genus, most of which are saprophytic organisms. However, there is also a group of species particularly dangerous to plants. These species include, among others, Pp. litorale, Pp. helicoides and Pp. vexans. The purpose of this work was to collect information about these organisms and present them in a condensed form. The study contains basic information about the history of the type of separation, differences in morphology distinctive genus of Phytopythium, Phytophthora and Pythium and information about diseases and host plants. Information is also provided on the potential threat posed by these organisms to forest ecosystems.

Comparative Genomics and Phylogenetic Analyses of Christia vespertilionis and Urariopsis brevissima in the Tribe Desmodieae (Fabaceae: Papilionoideae) Based on Complete Chloroplast Genomes.

Taxonomic and phylogenetic relationships of Christia, Urariopsis, Uraria and related genera within the tribe Desmodieae (Fabaceae: Papilionoideae) have long been controversial. Here, we report the complete chloroplast (cp) genomes of Christia vespertilionis and Urariopsis brevissima and perform comparative and phylogenetic analyses with Uraria lagopodioides and other relatives in the Desmodieae. The cp genomes of C. vespertilionis and U. brevissima are 149,656 and 149,930 bp long, with 128 unique genes (83 protein-coding genes, 37 tRNA genes and 8 rRNA genes), respectively. Comparative analyses revealed 95-129 simple sequence repeats (SSRs) and eleven highly variable regions (trnK-rbcL, rbcL-atpB, ndhJ-trnF, trnL-trnT, psbD-rpoB, accD-cemA, petA-psbL, psbE-petL, rps11-rps19, ndhF-ccsA, and rps15-ycf1) among six Desmodieae species. Phylogenetic analyses clearly resolved two subtribes (Desmodiinae and Lespedezinae) of Desmodieae as monophyletic, and the newly reported C. vespertilionis and U. brevissima clustered in subtribe Desmodiinae. A sister relationship of C. vespertilionis to U. lagopodioides was supported. Evidence was presented to support the treatment of Urariopsis as a distinct genus rather than in synonymy with Uraria. The results provide valuable information for further studies on species delimitation, phylogenetics, population genetics, and the evolutionary process of speciation in the Desmodieae.

Spathiurus dorsalis Davis, 1887, from the Upper Cretaceous of Haqel, Lebanon, and the evolutionary history of Ionoscopiformes

New and well-preserved fossil fish material from the Upper Cretaceous (Cenomanian) of Haqel, Lebanon, is assigned to Spathiurus dorsalis Davis, 1887. Spathiurus dorsalis and Amphilaphurus major are found to be synonymous. A complete re-description of this taxon is provided and delivers new recognized anatomical information, mainly cranial features. Spathiurus dorsalis displays diagnostic characters of ionoscopids and consequently is designated as a new member of this family. A phylogenetic analysis was performed to place this taxon within the Halecomorphi. The studied taxon was recovered as the sister genera of Ionoscopus petrarojae, both derived compared to ‘Ionoscopus’ cyprinoides, suggesting that the latter should be placed in a distinct genus. The validated placement of Spathiurus within the Ionoscopidae extends the stratigraphic range of this family from the Albian to the Cenomanian and becomes the first record of an ionoscopiform from the Upper Cretaceous and from the Middle East.

A systematic revision of the vulnerable mangrove genus Pelliciera (Tetrameristaceae) in equatorial America

Pelliciera is a genus of mangrove trees with distinct showy flowers with five petals subtended by two large foliaceous bracts. The genus, thought to be monotypic, only containing P. rhizophorae, was classified recently in the small diverse family, the Tetrameristaceae. This distinctive genus occurs in a relatively restricted distribution in Central and northern South America in the Atlantic-East Pacific region. In this recent decade, two varietal forms have been reported across its range, of which one appears to be a colour morph referred to much earlier as P. rhizophorae var. benthamii. The taxonomic status of the earlier morph was, however, insufficient to warrant individual recognition at the time, so the genus remained monotypic with no varietal forms. The aim of this treatment has been to review the systematic history of the genus, to thoroughly re-assess available observations and to re-evaluate the current taxonomic status. In conclusion, the genus is recognised now as having two closely related species, described here as P. benthamii along with a redefined P. rhizophorae. Characters such as leafy bract colour, leaf dentition and petal shape used in their discrimination are provided, along with notes on the ecology, phenology, a diagnostic key, and a revised distribution map that displays the oddly overlapping occurrences.

Additions to Phaeosphaeriaceae (Pleosporales): Elongaticollum gen. nov., Ophiosphaerella taiwanensis sp. nov., Phaeosphaeriopsis beaucarneae sp. nov. and a new host record of Neosetophoma poaceicola from Musaceae.

A novel ascomycetous genus, Elongaticollum, occurring on leaf litter of Hedychium coronarium (Zingiberaceae) in Taiwan, is described and illustrated. Elongaticollum is characterized by dark brown to black, superficial, obpyriform, pycnidial conidiomata with a distinct elongate neck, and oval to oblong, hyaline, aseptate conidia. Phylogenetic analyses (maximum likelihood, maximum parsimony and Bayesian) of combined ITS, LSU, SSU and tef1-α sequence data revealed Elongaticollum as a distinct genus within the family Phaeosphaeriaceae with high statistical support. In addition, Ophiosphaerella taiwanensis and Phaeosphaeriopsis beaucarneae are described as new species from dead leaves of Agave tequilana and Beaucarnea recurvata (Asparagaceae), respectively. Neosetophoma poaceicola is reported as a new host record from dead leaves of Musa acuminata (Musaceae). Newly described taxa are compared with other similar species and comprehensive descriptions and micrographs are provided.

Morpho-molecular diversity of Linocarpaceae (Chaetosphaeriales): Claviformispora gen. nov. from decaying branches of Phyllostachys heteroclada

In this paper, Claviformisporagen. nov. in Linocarpaceae is introduced from Phyllostachys heteroclada in Sichuan Province, China. The new genus is characterised by its distinct morphological characters, such as ostiole with periphyses, asci with a thick doughnut-shaped, J- apical ring and clavate ascospore without septum-like band and appendage. Maximum Likelihood and Bayesian Inference phylogenetic analyses, based on DNA sequence data from ITS, LSU, SSU and TEF-1α regions, provide further evidence that the fungus is a distinct genus within this family. The new genus is compared with similar genera, such as Linocarpon and Neolinocarpon. Descriptions, illustrations and notes are provided for the new taxon.