scholarly journals Descriptions of four new dextral land snails of the genus Camaena (Gastropoda, Eupulmonata, Camaenidae) from south China

ZooKeys ◽  
2020 ◽  
Vol 996 ◽  
pp. 37-58
Author(s):  
Pei Wang ◽  
Mei-Ling Hu ◽  
Jun-Hong Lin ◽  
Hai-Fang Yang ◽  
Xiao-Jing Li ◽  
...  
Keyword(s):  
New Species ◽  
South China ◽  
Dna Sequences ◽  
Reproductive System ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Land Snails ◽  
Shell Morphology ◽  
Molecular Phylogenetic ◽  
Living Environments

In this study, four new dextral camaenid from China are reported, based on shell morphology, reproductive system anatomy, and molecular phylogenetic analyses: Camaena funingensis Zhou, Wang & Lin, sp. nov., Camaena gaolongensis Zhou, Wang & Lin, sp. nov., Camaena maguanensis Zhou, Wang & Hu, sp. nov., and Camaena yulinensis Zhou, Wang & Hu, sp. nov. Detailed descriptions of the morphological characteristics including shells and genitalia, DNA sequences, and living environments of the four new species are provided, with further comparisons with congeners.

scholarly journals New Species of Tomentella (Thelephorales, Basidiomycota) from Temperate Continental Mountain Climate of China (Xinjiang Region)

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1531
Author(s):  
Xu Lu ◽  
Haisheng Yuan
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Northwest China ◽  
Tropical Regions ◽  
Mountain Climate ◽  
Molecular Phylogenetic ◽  
Three New Species ◽  
Xinjiang Autonomous Region

Species in the genus Tomentella are distributed throughout the temperate and tropical regions worldwide, but few studies associated with the taxonomy and phylogeny of this genus had been reported from Northwest China. In this paper, molecular phylogenetic analyses of the nuclear ribosomal ITS (internal transcribed spacer: ITS1-5.8S-ITS2) and LSU (large subunit: 28S) sequences combined with morphological characteristics identified three new species from Xinjiang Autonomous Region in Northwest China, which were named T. aurantispora, T. kanasensis, and T. schrenkiana. Similar macromorphological and anatomical characteristics are shared by these new species: arachnoid basidiocarps; byssoid sterile margins; utriform basidia with a clamp connection at the base; the absence of rhizomorphs and cystidia; and slightly thick-walled, subglobose to globose basidiospores. Among these new species, the color of the hymenophoral surface, the size of the basidiospores, and some other features can be used for species delimitation. The new species and closely related species in the phylogenetic tree were discussed, and a key to the identified species of Tomentella from China was provided.

Cortinarius khinganensis (Agaricales), a new species of section Illumini from Northeast China

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 1-10
Author(s):  
MENG-LE XIE ◽  
TIE-ZHENG WEI ◽  
BÁLINT DIMA ◽  
YONG-PING FU ◽  
RUI-QING JI ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Sensu Stricto ◽  
Similar Species ◽  
Molecular Phylogenetic ◽  
A New Species

This study presents one telamonioid species new to science based on morphological characteristics and molecular phylogenetic analyses. Cortinarius khinganensis was collected from the Greater Khingan Mountains, Northeast China and it is characterized by hygrophanous, vivid brownish red and striate pileus, white universal veil, and subglobose spores. According to phylogenetic analyses results, C. khinganensis belongs to the section Illumini, which is a lineage distantly related from subgenus Telamonia sensu stricto. Detailed descriptions of the new species and the comparisons with morphologically similar species are provided. The phylogenetic relationships within the section Illumini are also discussed.

Leptolejeunea nigra (Lejeuneaceae), a new species with brownish black ocelli based upon morphology and DNA sequences

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Time Span ◽  
Molecular Dating ◽  
Molecular Phylogenetic ◽  
Brownish Black ◽  
A New Species

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.

scholarly journals Molecular and morphological evidence reveal a new genus and species in Auriculariales from tropical China

MycoKeys ◽  
2018 ◽  
Vol 35 ◽  
pp. 27-39 ◽  
Author(s):  
Hai-Sheng Yuan ◽  
Xu Lu ◽  
Cony Decock
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Type Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Strong Support ◽  
Morphological Characteristics ◽  
Morphological Evidence ◽  
New Genus And Species ◽  
Tropical China

Grammatuslabyrinthinusgen. et sp. nov. is proposed based on DNA sequences data and morphological characteristics. It is known so far from southern, tropical China. The new species is characterised by an annual, resupinate basidiocarp with a shallow, subporoid hymenophore, a hymenium restricted to the bottom of the tubes, a dimitic hyphal system, presence of encrusted skeletocystidia and dendrohyphidia, longitudinally septate basidia and smooth, oblong-ellipsoid to cylindrical, acyanophilous basidiospores. Phylogenetic analyses based on ITS + nLSU DNA sequences data indicate that G.labyrinthinus belongs to Auriculariaceae in which it has an isolated position. Phylogenetic inferences show G.labyrinthinus to be related to Heteroradulum. However, the ITS sequences similarity between G.labyrinthinus and H.kmetii, the type species of Heteroradulum, were 89.84% and support the establishment of the new genus. Inversely, Heteroradulumsemis clustered with G.labyrinthinus with strong support and it is transferred to Grammatus.

A new vole from Xizang, China and the molecular phylogeny of the genus Neodon (Cricetidae: Arvicolinae)

Zootaxa ◽  
2012 ◽  
Vol 3235 (1) ◽  
pp. 1 ◽  
Author(s):  
SHAO YING LIU ◽  
ZHI YU SUN ◽  
YANG LIU ◽  
HAO WANG ◽  
PENG GUO ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
The Body ◽  
Mitochondrial Cytochrome B ◽  
Molecular Phylogenetic ◽  
Distinct Lineage ◽  
Upper Molar ◽  
A New Species ◽  
Lower Molar

During a faunal survey in southern Xizang, we collected 27 specimens of voles that could not be identified as any knownspecies in the Arvicolinae. These specimens shared the following morphological characteristics, not corresponding withany other arvicoline species: the first lower molar possessed five closed triangles, the third upper molar exhibited eitherfour or three inner angles, and the tails of all specimens measured 30% of the body length. Their proximal baculum of theglans was very sturdy and trumpet-shaped, the distal baculum was tongue-like and sturdy, and the lateral bacula were veryshort. Molecular phylogenetic analyses based on nucleotide sequences of the mitochondrial cytochrome b (cyt b) geneclustered these specimens as a distinct lineage within the genus Neodon. According to the morphological and moleculardata, we described them as a new species, Neodon linzhiensis. Our phylogenetic analysis strongly supported that Lasio-podomys fuscus, Phaiomys leucurus, Neodon sikimensis, N. irene and the new species formed a monophyletic group, notincluding N. juldaschi. We suggested that L. fuscus and P. leucurus should be transferred to Neodon and that N. juldaschishould be removed from this genus. Following our new delineation of Neodon, we proposed a redefinition of the morphological diagnostic characters of the genus.

Three new species of Micropsalliota (Agaricaceae, Agaricales) from China

Phytotaxa ◽  
2021 ◽  
Vol 491 (2) ◽  
pp. 167-176
Author(s):  
JIA-XIN LI ◽  
MAO-QIANG HE ◽  
RUI-LIN ZHAO
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Phylogenetic Tree ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Southwestern China ◽  
Molecular Phylogenetic ◽  
Three New Species

Species diversity of Micropsalliota in China remains poorly known, especially in southwestern China, a hotspot of biodiversity. Based on morphological characteristics and molecular phylogenetic analyses using ITS and nrLSU sequences, three new species named Micropsalliota delicatula, M. dentatomarginata and M. digitatocystis are introduced from China. Phylogenetc analyses results indicated the unique phylogenetic positions of three new species in Micropsalliota. Full descriptions, photo plates, illustrations and a phylogenetic tree to show the placement of three new species are presented.

Morphological characteristics and phylogenetic analyses revealed a new Calocybe (Lyophyllaceae, Basidiomycota) species from northeast China

Phytotaxa ◽  
2021 ◽  
Vol 490 (2) ◽  
pp. 203-210
Author(s):  
JIZE XU ◽  
XIAODONG YU ◽  
CHUNLAN ZHANG ◽  
YU LI
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Nuclear Ribosomal Dna ◽  
Full Description ◽  
Molecular Phylogenetic ◽  
A New Species

A new species, Calocybe decurrens, is illustrated and described in detail based on morphological characteristics and phylogenetic analyses. Calocybe decurrens is mainly characterized by its decurrent gills and by its stipe that discolors upon maturation. Molecular phylogenetic analyses were based on the internal transcribed spacer (ITS1-5.8S-ITS2) and the large subunit of the nuclear ribosomal DNA (nrLSU) sequences. The results indicated that its affiliation is in genus Calocybe, where it occupies an isolated position. A full description, color images, illustrations and a phylogenetic tree to show the placement of the new species are provided.

A new species of Trichoglossum (Geoglossales, Ascomycota) from Thailand

Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 161 ◽  
Author(s):  
ANUSHA H. EKANAYAKA ◽  
KEVIN D. HYDE ◽  
E.B. GARETH JONES ◽  
QI ZHAO ◽  
ABDALLAH M. ELGORBAN ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Its Sequence ◽  
Morphological Examination ◽  
Molecular Phylogenetic ◽  
A New Species

The genus Trichoglossum (Geoglossaceae) is characterized by black, clavate, stipitate apothecia with hymenial setae. We collected T. cf. octopartitum from China and a new species of Trichoglossum from Thailand, the latter named as T. septatum. According to morphological examination and molecular phylogenetic analyses of ITS sequence data, T. septatum diverges from other Trichoglossum species. Full descriptions, colour figures, and a phylogenetic tree to show the positions of T. cf. octopartitum and T. septatum are provided, and the two species are compared with allied taxa. The important morphological characteristics of Trichoglossum species are also summarized.

Impatiens tanintharyiensis (Balsaminaceae), a new species from Southern Myanmar

Phytotaxa ◽  
2017 ◽  
Vol 296 (2) ◽  
pp. 171 ◽  
Author(s):  
SAROJ RUCHISANSAKUN ◽  
PIYAKASET SUKSATHAN ◽  
TIMOTHEÜS VAN DER NIET ◽  
SAW LWIN ◽  
STEVEN B. JANSSENS
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
Pollination Syndrome ◽  
Bee Pollination ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
A New Species ◽  
Spacer Dna

Impatiens tanintharyiensis Ruchisansakun, Suksathan & Saw-Lwin from the Tanintharyi region of Southern Myanmar is described and illustrated as a new species. The presence of connate lateral united petals and a four-locular ovary, as well as results of molecular phylogenetic analyses of nuclear ITS and plastid atpB-rbcL spacer DNA sequences, suggest that the new species is a member of Impatiens section Semeiocardium (Zoll.) S.X. Yu & Wei Wang. The new species is morphologically most similar to I. spectabilis Triboun & Suksathan, but can be distinguished by its asymmetric flowers, saccate-bucciniform lower sepal, and shorter, slightly incurved spur. Floral traits, including the presence of a large floral chamber with a wide entrance, are consistent with the bee-pollination syndrome in Impatiens. Since I. tanintharyiensis is only known from two small populations, its conservation status is assessed as Endangered.

scholarly journals Reassessment and systematic position of the sinistral snails of genus Hemiplecta from Thailand (Eupulmonata: Ariophantidae), with description of two new species

2020 ◽  
pp. 1-33
Author(s):  
Chirasak Sutcharit ◽  
Ekgachai Jeratthitikul ◽  
Piyoros Tongkerd ◽  
Somsak Panha
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Comparative Morphology ◽  
Systematic Position ◽  
Reproductive Organ ◽  
Peninsular Malaysia ◽  
Land Snails ◽  
The Family ◽  
Two New Species ◽  
Molecular Phylogenetic

Indochina land snails of the family Ariophantidae are in need of thorough systematic revision. Here we comprehensively revise the systematics of the large-shelled, sinistral (counterclockwise) coiling snails from Thailand and Peninsular Malaysia. Molecular phylogeny based on mitochondrial (coi and 16S) and nuclear (28S) gene sequences demonstrates that these sinistral snails are not members of Dyakiidae as previously thought, but instead are more closely related to the genus Hemiplecta in the family Ariophantidae. Comparative morphology also reveals similarity of reproductive organ features (globular gametolytic organ, well-developed dart apparatus, and lack of amatorial organ complex). Based on this evidence, we propose to transfer these sinistral snails to the genus Hemiplecta. Molecular phylogenetic analyses further strongly support the monophyly of this sinistral lineage with respect to other members of Hemiplecta. This monophyletic clade consists of five members including three species that were previously classified as “Dyakia”, H. lahatensis, H. retrorsa and H. salangana, and two new species described herein, H. ligorica n. sp. and H. thailandica n. sp. This study also suggests that the anatomy of the gametolytic organ in the genus Hemiplecta corresponds well with the phylogenetic relationships and appears to be a taxonomically informative character, while the penial verge has little utility for generic recognition.

Sign in / Sign up

Export Citation Format

Share Document