Hygrophorus aurantiosquamosus (Hygrophoraceae, Agaricales), a new species of Hygrophorus section Chrysodontes from western China

Phytotaxa ◽  
2021 ◽  
Vol 528 (5) ◽  
pp. 279-289
Author(s):  
HONG-YAN HUANG ◽  
WEN-HAO ZHANG ◽  
TING HUANG ◽  
LI-PING TANG

In China, the European species, Hygrophorus chrysodon, is widely reported in western and northeastern provinces. After carefully comparing H. chrysodon from China and Europe, we found that the European and Chinese materials were different lineages in molecular trees, and there were also obvious differences in morphology between the two lineages. The evidence from morphology and phylogeny indicated that the presence of H. chrysodon in China is doubtful and that the Chinese material represents an undescribed species. Thus, H. aurantiosquamosus is proposed as a new species. This new taxon is characterized by its yellowish white pileus covered with golden yellow squamules, a stipe concolorous with the pileus and covered with yellow floccules, a distinct pileipellis composed of narrow hyphae with inflated terminal elements of various shapes (clavate, cylindrical, lacrymoid to subglobose), and elongate to subcylindrical basidiospores measuring 9.5–12 × 4–5.5 μm. The new species occurs in Picea forests at high elevations of western China, such as Qinghai, Sichuan, and Tibet provinces.

2019 ◽  
Vol 18 (2) ◽  
pp. 141-157 ◽  
Author(s):  
William E. Duellman

A new species of Osteocephalus (Anura: Hylidae) from Colombia, with comments on the morphological and behavioral diversity within the genus. A striking, undescribed species of Osteocephalus from the Amazonian slopes of the Andes in Departamento de Putumayo in southern Colombia is a member of the Osteocephalus buckleyi Group. Aside from minor morphological characters, the new species differs from all other members of the group by having a golden yellow iris with a median horizontal black stripe. The diversity in morphological and reproductive behavior reveals various features that are phylogenetically signifcant, but several species remain to be described.


2011 ◽  
Vol 43 (2) ◽  
pp. 137-140 ◽  
Author(s):  
Xin Yu WANG ◽  
Yogesh JOSHI ◽  
Soon Ok OH ◽  
Jae-Seoun HUR ◽  
Li Song WANG

AbstractPilophorus fruticosus Li S. Wang & Xin Y. Wang is described from south-west China. It is characterized by the presence of densely dichotomously branched, partly decorticated pseudopodetia, and by having single, spherical apothecia on the apices of the pseudopodetia. The species grows on siliceous rocks in alpine regions of the Yunnan Province. A detailed description and illustrations are provided. The new taxon is compared with other Pilophorus species.


Phytotaxa ◽  
2017 ◽  
Vol 311 (2) ◽  
pp. 190
Author(s):  
JULIO ANTONIO LOMBARDI

Chionanthus is a genus from the plant family Oleaceae that is characterized by the presence of small calyces, 4-lobed corollas with petals arranged in pairs and held together by the filament bases, less commonly with a very short tube, two stamens in most species, and drupaceous fruits. As part of ongoing taxonomic studies of the Neotropical Oleaceae, we detected an undescribed species from Peru, that is here described and illustrated. Chionanthus chrysopetalus Cornejo ex Lombardi resembles C. implicatus and C. compactus, two species from northwestern South America, by the elliptic leaves. However, C. chrysopetalus can be separated by both taxa by the hispidulous indument, and yellow corollas, unusual features within the genus. In this study, I present a detailed description for the new taxon, notes on the phenology, geographic distribution, habitat, conservation status, and etymology.


Phytotaxa ◽  
2019 ◽  
Vol 414 (4) ◽  
pp. 194-198
Author(s):  
ANDREI I. PYAK ◽  
ELIZAVETA A. PYAK

Astragalus admirabilus Pyak & E.Pyak (Fabaceae: Galegeae), a new species from a cross-border highland region of Altai Mountains in Russia and Mongolia, is described and illustrated. This species belongs to section Laguropsis. Diagnostic morphological characters for discriminating this new species from closely similar A. zaissanensis and A. dilutus are tabulated. It differs from A. zaissanensis by the colour of the corolla (yellowish-white with purple keel and purple upper part of the standard vs. yellow) and its longer pods (13–14 vs. 10 mm). It differs from A. dilutus by its larger flowers (23–25 vs. 17–20 mm), its shorter peduncles (shorter than leaves vs. equal or longer than leaves) and number of flowers per inflorescence (5–8(–9) vs. 15–20). Notes are presented on the distribution, ecology and conservation status of the new taxon.


2021 ◽  
pp. 1-13
Author(s):  
Rainer R. Schoch ◽  
Gabriela Sobral

Abstract The late Paleozoic temnospondyl Sclerocephalus formed an aquatic top predator in various central European lakes of the late Carboniferous and early Permian. Despite hundreds of specimens spanning a wide range of sizes, knowledge of the endocranium (braincase and palatoquadrate) remained very insufficient in Sclerocephalus and other stereospondylomorphs because even large skulls had unossified endocrania. A new specimen from a stratigraphically ancient deposit at St. Wendel in southwestern Germany is recognized as representing a new taxon, S. concordiae new species, and reveals a completely ossified endocranium. The sphenethmoid was completely ossified from the basisphenoid to the anterior ethmoid region, co-ossified with the parasphenoid, and the basipterygoid joint was fully established. The pterygoid bears a slender, S-shaped epipterygoid, which formed a robust pillar lateral to the braincase. The massive stapes was firmly sutured to the parasphenoid. In the temnospondyl endocranium, character evolution involved various changes in the epipterygoid region, which evolved distinct morphologies in each of the major clades. UUID: http://zoobank.org/5e6d2078-eacf-4467-84cf-a12efcae7c0b


2006 ◽  
Vol 25 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Jeremy R. Young ◽  
Harald Andruleit

Abstract. A very distinctive new deep-photic coccolithophore is described from the NE Indian Ocean. The new species is trimorphic with: 200–300 body coccoliths bearing low spines attached by narrow stems to a basal narrow-rimmed placolith structure; up to 18 circum-flagellar coccoliths with tall sail-like spines; and up to 22 coccoliths with moderately elevated spines occurring both around the circum-flagellar coccoliths and antapically. These features make the coccolithophore unique and require placement in a new species and genus. The basal structure, however, shows similarities to a recently recognized group of narrow-rimmed placoliths. Hence, the new coccolithophore provides some support for this grouping as a significant addition to our understanding of coccolithophore biodiversity, and potentially an explanation for a set of anomalous molecular genetic results. In addition the new taxon provides further evidence that the deep-photic coccolithophore community is more diverse than has been assumed.


Phytotaxa ◽  
2018 ◽  
Vol 333 (1) ◽  
pp. 108 ◽  
Author(s):  
BART VAN DE VIJVER ◽  
STEVEN DESSEIN

During a survey of the freshwater diatom flora of the sub-Antarctic region (Iles Kerguelen and Iles Crozet) in the southern Indian Ocean, an unknown Cyclotella taxon was observed that was formerly identified as the presumed cosmopolitan C. meneghinana. Detailed morphological analysis based on light and scanning electron microscopical observations and comparison with several similar Cyclotella taxa worldwide justified the description of this unknown taxon as a new species: Cyclotella deceusteriana sp. nov. The new taxon is characterized by the presence of marginal fultoportulae on every costa, hyaline furrows between the raised marginal parts on which the striae are located, 2, occasionally 1, 3 or 4 central fultoportulae and an entirely flat, smooth, relatively small central area. The new species is described and compared with other Cyclotella taxa. Notes on its distribution and ecology are added.


Phytotaxa ◽  
2013 ◽  
Vol 147 (2) ◽  
pp. 48 ◽  
Author(s):  
HAI-XIA MA ◽  
LARISSA VASILYEVA ◽  
YU LI

Xylaria fusispora, an undescribed species of Xylaria (Xylariales, Xylariaceae), is described and illustrated as a new species based on collections from Guizhou Province, China. Both morphology and phylogenetic analysis of nrDNA ITS sequences support the establishment of this new species. The fungus is characterized by its fusoid-equilateral ascospores and an ascus apical ring not bluing in Melzer’s reagent. The differences between the new species and the related fungi are discussed.


Phytotaxa ◽  
2021 ◽  
Vol 501 (1) ◽  
pp. 151-161
Author(s):  
ER-HUAN ZANG ◽  
MING-XU ZHANG ◽  
WEN-LE WANG ◽  
CHUN-HONG ZHANG ◽  
MIN-HUI LI

In May 2020, a new taxon of Euphorbia, Euphorbiaceae was collected from a dry hillside of Dongsheng District, Ordos City, Inner Mongolia. The morphological characteristics of the specimens analyzed differ from those of the known Euphorbia species from this region; therefore, we suspected this may be a new species, and we set to analyze the ITS2 sequences of some Euphorbia species. The results show that the new taxon belongs to the sect. Esula of Euphorbia subg. Esula. It is similar to Euphorbia esula (description from Flora of China) but does not belong to the same species. Concomitantly, plant morphological data and pollen morphology results show significant differences between the new taxon, E. esula and E. caesia, a finding that supports the delimitation of this new taxon, which is named Euphorbia mongoliensis in accordance with its geographical distribution.


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