Iodosphaeria honghense sp. nov. (Iodosphaeriaceae, Xylariales) from Yunnan Province, China

Phytotaxa ◽  
2019 ◽  
Vol 420 (4) ◽  
pp. 273-282
Author(s):  
DIANA S. MARASINGHE ◽  
MILAN C. SAMARAKOON ◽  
SINANG HONGSANAN ◽  
SARANYAPHAT BOONMEE ◽  
ERIC H. C. MCKENZIE

Iodosphaeria honghense sp. nov., collected from dead twigs of an unknown host in Honghe, Yunnan Province, China, is introduced based on morphological characteristics and phylogenetic analyses. Iodosphaeria honghense is distinct from other similar taxa in having cylindrical to allantoid, guttulate ascospores without a mucilaginous sheath. Maximum likelihood and Bayesian analyses based on combined LSU, ITS and RPB2 data matrix indicate that I. honghense forms a distinct lineage within the Iodosphaeriaceae. This study provides a detailed description and illustrations with morphological comparisons, and includes a key to accepted Iodosphaeria species.

MycoKeys ◽  
2021 ◽  
Vol 80 ◽  
pp. 115-131
Author(s):  
Tolgor Bau ◽  
Jun-Qing Yan

Based on traditional morphological and phylogenetic analyses (ITS, LSU, tef-1α and β-tub) of psathyrelloid specimens collected from China, four new species are here described: Heteropsathyrella macrocystidia, Psathyrella amygdalinospora, P. piluliformoides, and P. truncatisporoides. H. macrocystidia forms a distinct lineage and groups together with Cystoagaricus, Kauffmania, and Typhrasa in the /Psathyrella s.l. clade, based on the Maximum Likelihood and Bayesian analyses. Thus, the monospecific genus Heteropsathyrella gen. nov. is introduced for the single species. Detailed descriptions, colour photos, and illustrations are presented in this paper.


Phytotaxa ◽  
2021 ◽  
Vol 505 (2) ◽  
pp. 201-212
Author(s):  
HONG-BO JIANG ◽  
SHI-JIE ZHANG ◽  
RUNGTIWA PHOOKAMSAK ◽  
ITTHAYAKORN PROMPUTTHA ◽  
PATTANA KAKUMYAN ◽  
...  

Amphibambusa hongheensis sp. nov. was collected from dead bamboo culms in Honghe County of Yunnan Province, China. The novel species is introduced based on the morpho-molecular approach. Morphologically, A. hongheensis fits well with Amphibambusa and is characterized by immersed, globose to subglobose ascomata, with protruding carbonaceous papilla, unitunicate, cylindrical to elongate fusiform, subsessile to short pedicellate asci with a J+, subapical ring, and fusiform, hyaline to pale brown, 1-septate ascospores, longitudinally striated, and surrounded by a thick mucilaginous sheath. Phylogenetic analyses of a concatenated ITS-LSU sequence dataset based on maximum-likelihood and Bayesian inference criteria revealed the phylogenetic affinity of A. hongheensis within Cainiaceae (Xylariales, Sordariomycetes). Amphibambusa hongheensis formed an independent subclade sister to A. bambusicola with moderate support (81% ML, 0.96 PP) and clustered with the genus Arecophila in Cainiaceae. Amphibambusa hongheensis is the second species accommodated in Amphibambusa and is reported from Yunnan, China, for the first time. Detailed description, illustration and updated phylogeny are provided.


Phytotaxa ◽  
2021 ◽  
Vol 513 (2) ◽  
pp. 129-140
Author(s):  
YUAN S. LIU ◽  
JIAN-KUI LIU ◽  
PETER E. MORTIMER ◽  
SAISAMORN LUMYONG

Amanita submelleialba sp. nov. in section Amanita, is described from northern Thailand based on both multi-gene phylogenetic analysis and morphological evidences. It is characterized by having small to medium-sized basidiomata; a yellow to yellowish pale pileus covering pyramidal to subconical, white to yellow white volval remnants; globose stipe base covered conical, white to yellow white volval remnants; fugacious subapical annulus; and absent clamps. Multi-gene phylogenetic analyses based on partial nuclear rDNA internal transcribed spacer region (ITS), partial nuclear rDNA larger subunit region (nrLSU), RNA polymerase II second largest subunit (RPB2), partial translation elongation factor 1-alpha (TEF1-α) and beta-tubulin gene (TUB) indicated that A. submelleialba clustered together with A. elata and A. mira, but represented as a distinct lineage from other extant species in section Amanita. The detailed morphological characteristics, line-drawing illustration and comparisons with morphologically similar taxa are provided.


Phytotaxa ◽  
2021 ◽  
Vol 514 (1) ◽  
pp. 1-25
Author(s):  
TIANYE DU ◽  
KEVIN D. HYDE ◽  
AUSANA MAPOOK ◽  
PETER E. MORTIMER ◽  
JIANCHU XU ◽  
...  

A dead woody sample of Acer sp. with fungal fruiting bodies was collected in Pu’er City of Yunnan Province. Multigene phylogenetic analyses of LSU, ITS, SSU, and tef1-α sequence data showed that our collection belongs to Montagnula and is well separated from all other extant species. Montagnula puerensis is compared with all extant species by morphological characteristics, culture characteristics, host, and location information and is the first report of Montagnula from the host genus Acer.


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.


Phytotaxa ◽  
2016 ◽  
Vol 265 (3) ◽  
pp. 225 ◽  
Author(s):  
AUSANA MAPOOK ◽  
KEVIN D. HYDE ◽  
DONG-QIN DAI ◽  
JUNFU LI ◽  
E. B. GARETH JONES ◽  
...  

Muyocopron species are associated with a wide variety of plant substrates worldwide and presently 57 species epithets are listed in Index Fungorum. Species in this genus form distinctive black, dull, rounded regions on the surface of plants and the genus is probably polyphyletic. The present study clarifies the phylogenetic placement of Muyocopron and related species, using fresh tropical collections from northern Thailand. Three Muyocopron species are characterized based on analyses of combined LSU and SSU sequence datasets. Phylogenetic analyses indicate that Muyocopron species form a distinct lineage with the Dyfrolomycetales and Acrospermales lineages. The new order Muyocopronales with three new Muyocopron species is introduced based on its distinct phylogeny and unique morphological characteristics. The taxonomy and phylogenetic relationships of tropical Muyocopron species are reappraised with suggestions for future work.


Phytotaxa ◽  
2018 ◽  
Vol 344 (1) ◽  
pp. 24 ◽  
Author(s):  
PAMELA RODRIGUEZ-FLAKUS

Palicella lueckingii is a newly described corticolous lecideoid lichen from the Malalcahuelo National Reserve growing on the bark of Araucaria araucana in Chile. Detailed morphological studies and inference from molecular phylogenetic analyses, based on maximum likelihood and Bayesian analyses of single gene locus (ITS), clearly indicate that the new species is a member of the recently introduced genus Palicella. Palicella lueckingii is most closely related to P. glaucopa, but clearly differs in having smaller ascospores, comparatively thicker thallus, epruinose apothecia, lack of oil droplets inside of exciple and presence of thiophanic acid as a major metabolite.


Phytotaxa ◽  
2017 ◽  
Vol 302 (2) ◽  
pp. 101 ◽  
Author(s):  
FABIO RENATO BORGES ◽  
ORLANDO NECCHI JR

South American studies on the genus Chara are relatively scarce, most consisting of floristic surveys and using only traditional morphological characters. This study is a first approach to the systematics of the genus Chara applying modern techniques (DNA sequences and oospore SEM analyses) in addition to the alpha-taxonomy investigations that have been conducted in Brazil. Twelve populations of Chara were analyzed from the midwest and southeast regions of Brazil. Sequences of three molecular markers were applied to infer phylogenies. The ultrastructure of the oospore wall and currently used morphological characters were analyzed for Chara populations. Maximum likelihood and Bayesian analyses of sequences of rbcL, ITS2, and matK were congruent in that they grouped the species in six clades, each representing one species: Chara braunii C.C. Gmelin, C. foliolosa C.L.Willdenow, C. guairensis R.Bicudo, C. haitensis M.P.J.F. Turpin, C. hydropitys H. Reichenbach and C. rusbyana M. Howe. Morphological characters, including ultrastructure of oospore wall, provided good evidences to characterize each species. Molecular data supported the recent view that some traditional infra-generic taxa (e.g. subgenus Charopsis and subsection Willdenowia) are not supported in phylogenetic analyses, whereas some species (e.g. C. foliolosa, C. haitensis, C. hydropitys and C. rusbyana previously considered as varieties and forms of C. zeylanica) were consistently distinguished in the analyses for the three molecular markers.


MycoKeys ◽  
2021 ◽  
Vol 85 ◽  
pp. 161-172
Author(s):  
Yue Cai ◽  
Yong Nie ◽  
Heng Zhao ◽  
ZiMin Wang ◽  
ZhengYu Zhou ◽  
...  

The fungal genus Conidiobolus sensu lato was delimited into four genera based on morphology and phylogeny. However, the taxonomic placement of C. parvus has not been determined until now. Here, we show that C. parvus belongs to a distinct lineage based on mitochondrial (mtSSU) and nuclear (TEF1 and nrLSU) phylogenetic analyses. Phylogenetic analyses further revealed a new species as sister to C. parvus. We identified a synapomorphy uniting these lineages (azygospore production) that was not observed in other allied genera of the family Ancylistaceae, and erected a new genus Azygosporusgen. nov. for this monophyletic group, with a new combination, A. parvuscomb. nov. as the type species. Within Azygosporus, the novel species A. macropapillatussp. nov. was introduced from China based on morphological characteristics and molecular evidence, which is characterized by its prominent basal papilla, in comparison to other closely related species, measuring 7.5–10.0×5.0–10.0 µm. Our study resolved the phylogenetic placement of C. parvus and improved the taxonomic system of the Ancylistaceae family.


Phytotaxa ◽  
2016 ◽  
Vol 280 (3) ◽  
pp. 259 ◽  
Author(s):  
JULIA BECHTELER ◽  
GAIK EE LEE ◽  
ALFONS SCHÄFER-VERWIMP ◽  
MATT A. M. RENNER ◽  
DENILSON F. PERALTA ◽  
...  

With more than 1,000 species in some 70 genera, Lejeuneaceae represent the largest family of liverworts. Although much progress has been made in recent years, the supraspecific classification of Lejeuneaceae has not yet been satisfactorily solved. Maximum likelihood and Bayesian analyses of a three marker dataset (nrITS, cp DNA rbcL and trnL-trnF) derived from 85 accessions of Lejeuneeae and 13 outgroup species revealed Pictolejeunea picta in a sister relationship to the remainder of Lejeuneeae, the most speciose tribe of Lejeuneaceae. Based on the outcome of the phylogenetic analyses, we establish subtribe Pictolejeuneinae subtr. nov.


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