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

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.

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1531
Author(s):  
Xu Lu ◽  
Haisheng Yuan

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.


Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 161 ◽  
Author(s):  
ANUSHA H. EKANAYAKA ◽  
KEVIN D. HYDE ◽  
E.B. GARETH JONES ◽  
QI ZHAO ◽  
ABDALLAH M. ELGORBAN ◽  
...  

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.


Phytotaxa ◽  
2021 ◽  
Vol 514 (2) ◽  
pp. 158-166
Author(s):  
XIAO-LING LI ◽  
HAI-YING YU ◽  
XI LUO ◽  
HAO WU ◽  
CHUN-YAN ZHAO ◽  
...  

Thirty-seven Phyllachora specimens were collected in China and examined for morphological characteristics. A molecular phylogenetic analysis based on a combined sequence dataset of ITS and LSU was also undertaken. Phyllachora cephalostachyi sp. nov. on Cephalostachyum pergracile is described based on its distinct phylogenetic relationships and a comparison of its morphological characteristics with known Phyllachora species on bamboo. Our results indicate a high species diversity of Phyllachora on bamboo in China. A full description and colour photographs of micro-characters are provided for the new species. A phylogenetic tree to show placement of the new species, and a table to compare morphology of the Phyllachora species reported on bamboo are also provided.


Phytotaxa ◽  
2020 ◽  
Vol 439 (3) ◽  
pp. 231-242
Author(s):  
SONG-MING TANG ◽  
MAO-QIANG HE ◽  
OLIVIER RASPÉ ◽  
XIA LUO ◽  
XIAO-LEI ZHANG ◽  
...  

Termitomyces floccosus and T. upsilocystidiatus nov., are introduced from China and Thailand based on morphological characteristics and molecular phylogenetic analyses. Termitomyces floccosus is characterized by a squamulose pileus and stipe, and utriform cheilocystidia. Termitomyces upsilocystidiatus is characterized by Y-shaped cheilocystidia. Phylogenetic analyses of combined mrSSU and nrLSU sequence data confirmed that the two taxa are distinct Termitomyces species. Comprehensive descriptions, colour photographs and a phylogenetic tree showing the position of the two new species are provided.


MycoKeys ◽  
2020 ◽  
Vol 72 ◽  
pp. 1-16
Author(s):  
Ping Du ◽  
Wu Fang ◽  
Xue-Mei Tian

In this study, taxonomic and phylogenetic analyses of Junghuhnia were performed. Three new species were characterised according to morphological characteristics and molecular phylogenetic analysis using ITS and nLSU sequences. They are J. austrosinensissp. nov., J. nandinaesp. nov. and J. subcollabenssp. nov.Junghuhnia austrosinensis is characterised by resupinate, thin basidiomata with white to buff-yellow hymenophore, small pores (9–11 per mm), clamped generative hyphae possessing hymenial cystidia, ellipsoid basidiospores (2.5–3 × 1.7–2 µm) and growth on fallen bamboo or angiosperm branch. Junghuhnia nandinae is characterised by resupinate basidiomata with pink to salmon pores and a distinct white margin, clamp generative hyphae, interwoven tramal hyphae, ellipsoid basidiospores measuring 2.6–3.2 × 1.8–2 µm and growth on Nandina domestica. Junghuhnia subcollabens is characterised by resupinate basidiomata with pale salmon to brownish vinaceous hymenophore, small pores (10–12 per mm), generative hyphae with simple septa and clamp connections, interwoven tramal hyphae, lunate basidiospores measuring 2.9–3.4 × 1.6–1.8 µm and thriving on rotten wood of angiosperms.


ZooKeys ◽  
2020 ◽  
Vol 996 ◽  
pp. 37-58
Author(s):  
Pei Wang ◽  
Mei-Ling Hu ◽  
Jun-Hong Lin ◽  
Hai-Fang Yang ◽  
Xiao-Jing Li ◽  
...  

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.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 1-10
Author(s):  
MENG-LE XIE ◽  
TIE-ZHENG WEI ◽  
BÁLINT DIMA ◽  
YONG-PING FU ◽  
RUI-QING JI ◽  
...  

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.


Zootaxa ◽  
2012 ◽  
Vol 3235 (1) ◽  
pp. 1 ◽  
Author(s):  
SHAO YING LIU ◽  
ZHI YU SUN ◽  
YANG LIU ◽  
HAO WANG ◽  
PENG GUO ◽  
...  

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.


Zootaxa ◽  
2020 ◽  
Vol 4869 (4) ◽  
pp. 529-561
Author(s):  
ALAIN DE CHAMBRIER ◽  
JAN BRABEC ◽  
TOMÁŠ SCHOLZ

Species diversity and interrelationships of tapeworms of the genus Kapsulotaenia Freze, 1963 (Proteocephalidae: Acanthotaeniinae), parasites of lizards, especially monitors (Varanus spp.) in the Australasian region, were re-assessed using an interdisciplinary approach. Molecular phylogenetic analyses of newly characterized lsrDNA and cox1 sequences confirmed monophyly of the genus, which is typified by the presence of eggs in capsules, and also indicated a strict (oioxenous) level of host specificity of its species thus revealing unexpected species diversity. Diagnoses of insufficiently described species were amended based on a study of the types and freshly collected specimens and, in addition, three new species were described. A list of ten species of the genus recognized as valid is provided, including illustrations of taxonomically important structures of poorly known taxa. Kapsulotaenia beveridgei n. sp. from V. rosenbergi in Australia differs from all other species of Kapsulotaenia but K. frezei and K. saccifera by having a lower number of testes and an absence of banana-shaped clusters of eggs. Kapsulotaenia cannoni n. sp. from V. gouldii can be distinguished from all species but K. chisholmae by a smaller scolex diameter and from all remaining species by its bigger cirrus-sac ratio and a bigger Mehlis’ gland/proglottid width ratio. Kapsulotaenia cannoni n. sp. differs from K. chisholmae, by the presence of an armed cirrus and a lower number of eggs in cluster (3–7 versus 8–13). Kapsulotaenia nybelini n. sp., which also occurs in V. gouldii, differs from K. tidswelli, K. frezei and K. beveridgei by having a greater number of testes, and it differs from K. varia by having a smaller relative size of the ovary. It differs from K. saccifera by the absence of banana-shaped cluster, and from K. pythonis by the number of eggs in clusters. Identification keys for all species of Kapsulotaenia and genera of the Acanthotaeniinae are also provided, together with SEM micrographs of three species, including two newly described species. 


2017 ◽  
Vol 182 (1) ◽  
pp. 129-172 ◽  
Author(s):  
Ignacio De la Riva ◽  
Juan C Chaparro ◽  
Santiago Castroviejo-Fisher ◽  
José M Padial

AbstractDespite recent efforts to accelerate exploration and species description, the diversity of high Andean frogs remains highly underestimated. We report high levels of species diversity in direct-developing frogs or terraranas inhabiting the wet puna and adjacent cloud forests of the Amazonian versant of the Andes in Bolivia and Peru. Descriptive evidence of external morphology, distribution patterns and molecular phylogenetic analyses support the existence of nine unnamed species in two clades, which represents a 30% increase in species diversity for those clades. The relationships of these species and their relatives in Holoadeninae are tested using nuclear and mitochondrial genes for 159 terminals representing the 11 genera in this subfamily and 25 species of previously unknown relationships. Our results corroborate species monophyly in all but three cases and support the monophyly of all Holoadeninae genera, albeit the position of some differs between analyses. We propose a new genus (Microkayla gen. nov.) for the clade containing all Bolivian species formerly in Psychrophrynella plus five species from southern Peru. The new genus is monophyletic and supported by anatomical synapomorphies. Psychrophrynella is re-diagnosed and redefined to include three species from the Andes of southern Peru. We discuss the taxonomic instability associated with Noblella and Psychrophrynella due to the fact that the type species of both genera share a number of traits that support a close relationship. We also name and describe three new species of Bryophryne and two of Microkayla from Peru, provide baseline data for the future description of four Bolivian species of Microkayla, and describe the unknown mating calls of two species. Our results support that the grasslands of the Amazonian versant of the Andes harbour a large diversity of species with small altitudinal and horizontal distributions that replace each other along a latitudinal axis. These species belong to different lineages whose closest relatives are forest species, often from distant parts of the continent. These patterns suggest that high Andean environments were colonized several times independently by species with forest ancestors and which radiated into a multitude of species with remarkably similar ecomorphologies. The extent of these radiations remains obscured by a still rudimentary knowledge of species diversity due to insufficient fieldwork and taxonomic research.


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