We have counted the currently known, described and accepted number of plant
species as ca 374,000, of which approximately 308,312 are vascular plants, with
295,383 flowering plants (angiosperms; monocots: 74,273; eudicots: 210,008).
Global numbers of smaller plant groups are as follows: algae ca 44,000,
liverworts ca 9,000, hornworts ca 225, mosses 12,700, lycopods 1,290, ferns
10,560 and gymnospe... hiện toàn bộ
Ting‐Chi Wen, RU-CAI ZHU, Ji‐Chuan Kang, MING-HE HUANG, DIAN-BO TAN, Hiran Ariyawansha, Kevin D. Hyde, Hao Liu
An entomogenous taxon, associated with larvae of Phassus nodus (Hepialidae)
collected from Xuefeng Mountains, Hunan Province, China, was found to be a new
species, Ophiocordyceps xuefengensis sp. nov. It differs from similar species in
having long stromata, without a sterile apex, narrow asci, long ascospores and
by its occurrence on Phassus nodus in living root or trunk of Clerodendrum
cyrtophyll... hiện toàn bộ
Stephanocha nom. nov. (Silicoflagellata, Dictyochophyceae) is herein proposed as
a replacement name for the illegitimate genus name Distephanus, which is a later
homonym of Distephanus, a flowering plant. The old generic description is
emended, with S. rotunda as the designated type, and new combinations are made
for all bona fide silicoflagellate taxa previously assigned (including those
tentativ... hiện toàn bộ
Bożena Kolano, Jamie McCann, MAJA OSKĘDRA, MARCELINA CHRAPEK, Magdalena Rojek, Agnieszka Nobis, Hanna Weiss‐Schneeweiss
Hybridization and polyploidization appear to be ubiquitous in the evolution of
Chenopodium s.s., but the origin and the evolutionary history of the polyploid
chenopods is still poorly understood. Phylogenetic analyses of DNA sequences of
nrITS, four plastid regions, and 5S rDNA spacer region (NTS) of five Eurasian
hexaploid chenopods (2n = 6x = 54), C. album, C. giganteum, C. pedunculare C.
formos... hiện toàn bộ
Two new species of the red algal genus Hypnea (Gigartinales) are described for
the southeastern coast of Brazil based on three molecular markers (COI-5P, rbcL
and UPA), detailed morphological analysis, and comparison with closely related
species. These species were named H. wynnei Nauer, Cassano & M.C. Oliveira and
H. yokoyana Nauer, Cassano & M.C. Oliveira. Hypnea wynnei is characterized
primaril... hiện toàn bộ
Jong Im Kim, Seung Won Nam, Jae Eun So, Soon Gyu Hong, Han‐Gu Choi, Woongghi Shin
The new species Asterochloris sejongensis sp. nov. has been collected from four
localities of King George Island, Antarctica, and is described as a phycobiont
of the lichen species Cladonia pyxidata and Sphaerophorus globosus. This
discovery is based on morphological and molecular data obtained using light
microscopy, confocal laser microscopy, transmission electron microscopy, and two
molecular m... hiện toàn bộ
Hygrochilus and Sedirea are genera of orchids with only three species endemic to
Asia. An analysis of ITS and five plastid regions using parsimony, maximum
likelihood, and Bayesian methods obtain clear evidence that Sedirea is nested
within and should be considered synonymous with Hygrochilus. We adopt a broadly
defined Hygrochilus characterized by possession of four pollinia. A new
combination, n... hiện toàn bộ
Wei Lim Goh, Sarawood Sungkaew, Atchara Teerawatananon, D. OHRNBERGER, Elizabeth A. Widjaja, K. K. Sabu, B. Gopakumar, Konnath Chacko Koshy, Nian‐He Xia, K. M. Wong
Among the tropical woody bamboos, the Melocanninae is one of the most clearly
recognized subtribes morphologically and has also been consistently well
delimited in molecular phylogenetic work. The relationships among those genera
in this subtribe, however, have been contentious because of poorly understood
generic delimitations, in part due to poor specimen material or insufficiently
assessed morp... hiện toàn bộ
Hypnea musciformis is a red macroalgal species with economic importance as a
source for production of carrageenan. Recent phylogeographic studies revealed a
hidden diversity of cryptic species, putting in check its cosmopolitan
distribution. The DNA barcode marker COI-5P and plastid rbcL, in addition to
morphological studies, were used to investigate the species in this complex and
to compare them... hiện toàn bộ