scholarly journals Descriptions of five new species in Entoloma subgenus Claudopus from China, with molecular phylogeny of Entoloma s.l.

MycoKeys ◽  
2019 ◽  
Vol 61 ◽  
pp. 1-26
Author(s):  
Xiao-Lan He ◽  
Egon Horak ◽  
Di Wang ◽  
Tai-Hui Li ◽  
Wei-Hong Peng ◽  
...  

Entoloma subgenus Claudopus is widely distributed, yet the taxonomy and systematics of its species are still poorly documented. In the present study, more than forty collections of Claudopus were gathered in China and subsequently analysed, based on morphological and molecular data. The results revealed first a high level of species diversity of Claudopus in China and second, there is a wide ecological range regarding the substrates and the habitats ranging from temperate, tropical to subalpine locations. Based on morphological and molecular evidence, five novel species from China are proposed, viz. E. conchatum, E. flabellatum, E. gregarium, E. pleurotoides and E. reductum. Molecular phylogeny of Entoloma s.l. was also reconstructed, based on 187 representatives of Entoloma s.l. by employing the combined ITS, LSU, mtSSU and RPB2 sequences. Ten monophyletic clades (Claudopus, Leptonia, Nolanea, Cuboid-spored Inocephalus, “Alboleptonia”, Cyanula, Pouzarella, Rhodopolia, Prunuloides and Rusticoides) were recovered, while 13 taxa could not be placed in any defined clades. The results confirmed that Claudopus in a traditional morphological sense is not monophyletic and the Rusticoides-group, previously considered within Claudopus, formed a separate clade; but section Claudopus and relatives of E. undatum belong to a distinctive monophyletic group. Despite some monophyletic groups in Entoloma s.l. being distinctive in both morphology and molecular phylogeny, they were still treated as subgenera of Entoloma s.l. temporarily, because accepting them as genera will make Entoloma s.l. paraphyletic.

MycoKeys ◽  
2020 ◽  
Vol 63 ◽  
pp. 163-172
Author(s):  
Xiao-Lan He ◽  
Egon Horak ◽  
Di Wang ◽  
Tai-Hui Li ◽  
Wei-Hong Peng ◽  
...  

Entoloma subgenus Claudopus is widely distributed, yet the taxonomy and systematics of its species are still poorly documented. In the present study, more than forty collections of Claudopus were gathered in China and subsequently analysed, based on morphological and molecular data. The results revealed first a high level of species diversity of Claudopus in China and second, there is a wide ecological range regarding the substrates and the habitats ranging from temperate, tropical to subalpine locations. Based on morphological and molecular evidence, five novel species from China are proposed, viz. E. conchatum, E. flabellatum, E. gregarium, E. pleurotoides and E. reductum. Molecular phylogeny of Entoloma s.l. was also reconstructed, based on 187 representatives of Entoloma s.l. by employing the combined ITS, LSU, mtSSU and RPB2 sequences. Ten monophyletic clades (Claudopus, Leptonia, Nolanea, Cuboid-spored Inocephalus, “Alboleptonia”, Cyanula, Pouzarella, Rhodopolia, Prunuloides and Rusticoides) were recovered, while 13 taxa could not be placed in any defined clades. The results confirmed that Claudopus in a traditional morphological sense is not monophyletic and the Rusticoides-group, previously considered within Claudopus, formed a separate clade; but section Claudopus and relatives of E. undatum belong to a distinctive monophyletic group. Despite some monophyletic groups in Entoloma s.l. being distinctive in both morphology and molecular phylogeny, they were still treated as subgenera of Entoloma s.l. temporarily, because accepting them as genera will make Entoloma s.l. paraphyletic.


Phytotaxa ◽  
2019 ◽  
Vol 416 (4) ◽  
pp. 243-256 ◽  
Author(s):  
DHANDEVI PEM ◽  
RAJESH JEEWON ◽  
TIMUR BULGAKOV ◽  
YUSUFJON GAFFOROV ◽  
SINANG HONGSANAN ◽  
...  

Thyrostroma ephedricola, isolated from Ephedra equisetina from Uzbekistan is introduced as a new species and a new combination, Thyrostroma jaczewskii (B. Sutton) is proposed. Both species are characterised by sporodochial, punctiform conidiomata, and brown cylindrical to subcylindrical, 1–3-septate conidiophores, cylindrical, clavate, or ellipsoid to pyriform brown conidia. Phylogenetic reconstruction based on analyses of ribosomal DNA (ITS, LSU and SSU regions) of Thyrostroma species, strongly supports the recognized taxa as a monophyletic group. The introduction of the new species is supported by both morphological and molecular data.


Phytotaxa ◽  
2021 ◽  
Vol 520 (1) ◽  
pp. 87-96
Author(s):  
YAN-LIU CHEN ◽  
XUE-YU PAN ◽  
JIE SONG ◽  
JUN-FENG LIANG

Sphaerosporella microspora is described as a new species based on morphological and molecular data. It is characterized by its sessile apothecia, surface smooth, ectal excipulum composed of cylindrical and angular cells, globose and smooth ascospores, and unmodified paraphyses. A detailed description, photographs of the fruit body and microstructure diagrams are provided.


Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 233-257
Author(s):  
Christoph I. Grünwald ◽  
Sarahi Toribio-Jiménez ◽  
Carlos Montaño-Ruvalcaba ◽  
Hector Franz-Chávez ◽  
Miguel A. Peñaloza-Montaño ◽  
...  

We describe two new species of Tropidodipsas related to the T. fasciata species group as defined by Kofron (1987), and provide morphological and molecular data to support the novelty of both species. A partial molecular phylogeny of the Mexican species of snail-eating snakes (Serpentes, Dipsadidae) is presented, and we discuss evolutionary relationships as supported by our molecular results. We analyze specific relationships of the new species described herein with their closest relatives. We present a distribution map for all species of Tropidodipsas and include photographs of living individuals of each species. Finally, we discuss other taxonomic changes based on our molecular phylogeny as well as conservation priorities of the new species.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 45-50
Author(s):  
XIA YU ◽  
MENG-YAO ZENG ◽  
GUI-ZHEN CHEN ◽  
XIN-YU XU ◽  
YUAN-YANG BI ◽  
...  

A new species of Cymbidium (Orchidaceae), C. weishanense, from Yunnan Province, China, is illustrated and described based on morphological and molecular evidence. Morphological comparison indicates that C. weishanense is similar to C. concinnum but differs in several floral characteristics. Molecular analyses based on nuclear ribosomal (ITS) and plastid DNA (matK and rbcL) support the status of C. weishanense as a new species. Due to the low support for nrITS, it is possible that this is a natural hybrid of C. concinnum with C. insigne or another related species.


Phytotaxa ◽  
2020 ◽  
Vol 428 (3) ◽  
pp. 271-278
Author(s):  
DI-YANG ZHANG ◽  
XIONG-DE TU ◽  
BIN LIU ◽  
XING-YU LIAO ◽  
SI-REN LAN ◽  
...  

A new species of Cymbidium (Orchidaceae), Cymbidium biflorens, from Yunnan Province, China, is illustrated and described based on morphological and molecular evidence. Morphological comparison indicates that C. biflorens is similar to C. rhizomatosum, but differs by its leafless, coralline rhizome, normally two flowering periods, a shorter scape, inflorescence with 1–2 flowers, greenish flowers with longer pedicel and ovary, subelliptic petal, petals and lip not fully opened. Molecular analyses base on nuclear (ITS) and plastid DNA (matK and rbcL) were conducted to explore the phylogenetic position of the species. The molecular evidence supports C. biflorens as sister to C. rhizomatosum.


Phytotaxa ◽  
2014 ◽  
Vol 180 (1) ◽  
pp. 1 ◽  
Author(s):  
Alfredo Justo ◽  
Ekaterina Malysheva ◽  
Tatiana Bulyonkova ◽  
Else C Vellinga ◽  
Gerry Cobian ◽  
...  

The taxonomy and phylogeography of Pluteus section Pluteus in the Holarctic region was investigated using morphological and molecular data. Over 300 specimens spanning the major areas of boreal and temperate forests of the Northern Hemisphere were studied and nrITS and tef1 were obtained for phylogenetic analyses. In order to stabilize the taxonomy of the group all available type collections were studied and, if possible, sequenced. A total of 26 species occurring in Eurasia and North America were recovered in the phylogenetic analyses. Twelve species are described as new (Pluteus rangifer, P. elaphinus, P. hibbettii, P. eos, P. orestes, P. methvenii, P. shikae, P. kovalenkoi, P. leucoborealis, P. sepiicolor, P. oreibatus, P. atrofibrillosus), one is provisionally named (P. parilis) and one variety is raised to species rank (P. americanus). In many cases separation of the species based on morphology alone is challenging. In general, tef1 distinguishes the species better than nrITS. Structured infraspecific genetic variation was detected in the nrITS phylogenies for five species (P. atromarginatus, P. hibbettii, P. orestes, P. primus and P. shikae) and in the tef1 phylogenies for P. cervinus. Phylogeographic patterns are strikingly different among the species in this group and include widespread Holarctic species, exclusively Palearctic, putative disjuncts and endemics in each Holarctic subregion (Eastern/Western Palearctic and Nearctic). Identification keys are provided for each subregion.


Zootaxa ◽  
2011 ◽  
Vol 2876 (1) ◽  
pp. 17 ◽  
Author(s):  
ALEJANDRO F. ARTEAGA-NAVARRO ◽  
JUAN M. GUAYASAMIN

We describe a new small sized (SVL in females ≤ 25.7 mm; in males, ≤ 20.1 mm) Pristimantis, associated with bamboodominated forests in the Reserva Mazar, Andes of Southeastern Ecuador, at elevations between 2876–2989 m. This species is assigned to the P. orestes group, from whose members it differs by the absence of tubercles on heel and outer edge of tarsus, lacking a discoidal fold, presence of slightly expanded finger and toe pads, and bright yellow blotches on groin, axilla and anterior surfaces of thigh. The advertisement call of the new species consists of a series of short, indistinctly pulsed notes, and has a dominant frequency of 2.50–2.56 kHz. A molecular phylogeny based on a fragment of the mitochondrial gene 12S shows that the new species is sister to a clade formed by Pristimantis simonbolivari and an undescribed Pristimantis.


Phytotaxa ◽  
2019 ◽  
Vol 406 (5) ◽  
pp. 271-278
Author(s):  
XING-YU LIAO ◽  
DI-YANG ZHANG ◽  
SI-REN LAN ◽  
ZHONG-JIAN LIU

A new species of Paphiopedilum (Orchidaceae) from Yunnan, China is described and illustrated based on examining morphological and molecular evidence. Morphological comparisons indicate that the new species P. erythroanthum is somewhat similar to P. henryanum, from which it differs by its shorter scape, larger and purple-red flower without purple spots, an obovate dorsal sepal, narrowly oblong petals with recurved apex and a cordate staminode. Molecular analyses of combined nuclear and plastid datasets (ITS and matK) indicate that P. erythroanthum is sister to P. notatisepalum, which has leaves with large yellow spots, a shorter scape, larger flower, white sepals and petals with large purple spots. The morphological and molecular evidence support the hypothesis that P. erythroanthum is a new species.


Phytotaxa ◽  
2016 ◽  
Vol 282 (4) ◽  
pp. 259 ◽  
Author(s):  
SI-JIN ZENG ◽  
GE-HAN HUANG ◽  
QIANG LIU ◽  
XIAO-KAI YAN ◽  
GUO-QIANG ZHANG ◽  
...  

Historically, the taxonomic study of the Asian genus Fordiophyton has had some gaps. Several specimens from Guangdong (China) have been misidentified as Fordiophyton brevicaule C. Chen. The new species proposed here shares with F. brevicaule the densely hirsute stem, rosetted leaves and glabrous hypanthia, but it is distinguished by its glabrous leaves, winged petioles, oblong petals lacking a single trichome at the apex, and purplish anthers in the longer set of stamens. The phylogenetic analyses indicate that it is a member of Fordiophyton and sister to F. brevicaule. Based on morphological and molecular data, we here recognize it as a new species, Fordiophyton zhuangiae S. Jin Zeng & G. D. Tang, which is described and illustrated.


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