Izhar, AimanAsif, MuhammadNiazi, Abdul RehmanKhalid, Abdul Nasir...
16页
查看更多>>摘要：Moniliophthora pakistanica sp. nov. is described from Punjab, Pakistan, based on micro-and morphological characteristics and phylogenetic analysis. The taxon is characterized by a creamy to brownish basidiomes, a depressed or subumbonate and tomentose pileus with distinct orange to brown zones, a hairy stipe, oblong to ellipsoid basidiospores (4.7-8.5 x 4-6 mu m), frequent clavate to flexuous cheilo-and pleurocystidia with apical projections, common long setiform terminal hairs in both pileipellis and stipitipellis, rhizomophs, and growth on fallen plant debris. A detailed description of macro-and microscopic characters and field photographs of collections are given. Based on our phylogenetic analysis, M. iopus is found to be a close relative of the new species. Two phylograms inferred from the datasets of nrITS and nrLSU sequences, and a comparison with phylogenetically closely related species are provided.
查看更多>>摘要：Two new species, Hypoxylon larissae and Hypoxylon jianfengense, are described and illustrated on the basis of a combination of morphological and molecular characters from China. Hypoxylon larissae was collected from southwest China (Yunnan province), while H. jianfengense was collected from southern China (Hainan province). Hypoxylon larissae is characterized by effused-pulvinate stromata, Orange (7) and Luteous (12) pigments extracted in 10% KOH and light brown to dark brown ascospores with straight germ slit. It is phylogenetically and morphologically closely related to H. fenderi. Hypoxylon jianfengense is distinguished by tubular to long tubular perithecia, Dark Green (21), Isabelline (65) and Dull Green (70) pigments extracted in 10% KOH and conspicuous coil-like perispore ornamentation. Hypoxylon jianfengense clustered with H. invadens and H. trugodes in a well-supported clade. Phylogenetic analyses of multi-gene sequences (ITSLSU-RPB2-TUB2) support the recognition of the taxa as distinct.
查看更多>>摘要：A new orchid species, Cymbidium purpureisepalum, from Yunnan Province, China, is described and illustrated based on morphological and molecular analyses. Detailed comparison of the newly discovered orchid with other members of Cymbidium indicated the new orchid is distinct from all other recognised species in Cymbidium. Molecular analyses based on nuclear (nrITS) and plastid DNA (matK) sequence data also support the status of C. purpureisepalum as a new species, which is sister to C. tortisepalum and C. serratum.
Vislobokov, Nikolay A.Romanov, Mikhail S.Khang Sinh NguyenVan The Pham...
7页
查看更多>>摘要：Peliosanthes luteoviridis is described and illustrated as a new species from southern Vietnam (Dong Nai Province, Cat Tien National Park). It is most similar to P. macrostegia in having stamens forming a hemispheric corona and a pistil somewhat abruptly narrowing to a conoid style, but differs mainly in dense inflorescence, terete peduncle, entirely yellowish green flowers and somewhat thin-textured translucent perigone.
查看更多>>摘要：Chrysopogon densipaniculatus, a remarkable new species has been described and illustrated from Korba district of Chhattisgarh, India. The species is allied to C. serrulatus but may be distinguished by the dense panicle inflorescence, glandular peduncle, upper lemma and palea of the pedicelled spikelet bi-dentate to tridentate, the latter of which is reduced a minute scale. Detailed morphological description, distribution, habitat and ecology, illustration of floral parts and colour photographs, IUCN conservation status and relevant taxonomic notes of the species are provided. A key for the identification of Chrysopogon species in India is also given to facilitate the proper identification.
查看更多>>摘要：The floral characters of Acer yui are supplemented based on living plants flowering in April from the type locality. It is distinguishable based on both vegetative and floral characters between the two morphologically similar species, A. buergerianum and A. yui. Contrary to general consideration that the holotype is at PE, A. yui did not have a holotype designated when being described. It was later inadvertently lectotypified by Fang in 1939 and the single specimen traced meets that designation should be the lectotype, and the other duplicates are isolectotypes.
Aona, Lidyanne Y. S.De Souza, Everton HiloDe Almeida Junior, Railson A. C.Bittrich, Volker...
8页
查看更多>>摘要：We describe, discuss, and illustrate Dichorisandra rhizantha, a new species from a transitional area between the Atlantic Forest and Caatinga domains in eastern Bahia state, Brazil. The species was assessed as Endangered, especially for its distribution restricted to forest fragments. The new species is morphologically similar to D. hirtella, D. radicalis and D. jardimii, but clearly differs from these by the inflorescence arising directly from the rhizome, and a pubescent indument on stem, leaves and sepals. We also present a distribution map of the species and taxonomic comments.
查看更多>>摘要：Tibet is a very important biodiversity hot spot in China and the diatom flora of this region has drawn a lot of attention. Diatom samples were collected from several places across Tibet. During research on the biodiversity of diatoms from Tibet, one Achnanthidium species showed unique features compared with other known taxa. It has linear-lanceolate valves with rounded apices, tear-drop shaped proximal raphe ends and ?-shaped distal raphe ends. The most distinctive character of this species, however, is the shape of areolae; since this species has nearly round external areolar openings on the valve face but more typical slit-like areolae present on the mantle. Here we describe it as new to science as Achnanthidium tibeticum Y. Liu & Kociolek. We compare this new species with other, similar taxa within the genus.
查看更多>>摘要：Oreocharis hainanensis, a new species of Gesneriaceae is described and illustrated from low-altitudual karst areas in Hainan Island, South China. The new species is easily distinguished from its closely-related O. jasminina by campanulate floral tube, zygomorphic corolla and exserted stamens. It also shows different habitats from the four currently-recognized Oreocharis taxa on the island. Molecular phylogeny analysis based on plastid trnL-trnF and nuclear ITS1/2 sequences supported the delimitation of the new species, which forms a monophyletic clade with all the other Oreocharis taxa from Hainan Island. The roles of habitat and floral isolation in the evolution of the new species and its affinities are discussed. The species was assessed as Vulnerable (VU C1 and D2) according to IUCN Red List Categories and Criteria.
NSTL
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