Subjects: Biology >> Botany >> Applied botany submitted time 2023-10-22 Cooperative journals: 《广西植物》
Abstract： Based on the examination of specimens collected from Baise, Guilin, Hechi and Nanning regions from 2019 to 2022, ten species of liverworts and hornworts, including Riccia cavernosa Hoffm., R. nipponica S. Hatt., Metacalypogeia alternifolia (Nees) Grolle, Bazzania angustistipula N.Kitag., Cheilolejeunea kitagawae W. Ye & R.L. Zhu, Cololejeunea magnistyla (Horik.) Mizut., Colura calyptrifolia (Hook.) Dumort., Lejeunea convexiloba M.L. So & R.L. Zhu, Anthoceros angustus Steph., and A. subtilis Steph., are reported new to the Guangxi Zhuang Autonomous Region. Among them, Colura calyptrifolia represents the first record for mainland China, and Metacalypogeia is a new genus record for Guangxi province. The diagnostic characters, voucher specimens, distribution, microscopic illustrations and taconmic notes are also documented for each species. This study shall provide useful knowledge to better understand the bryophytes biodiversity in Guangxi, as well as in China.
Subjects: Biology >> Botany >> Applied botany submitted time 2023-08-04 Cooperative journals: 《广西植物》
Abstract： The Bryum atrovirens Brid. complex in China was critically revised based on morphological evidence, with a focus on the tubers. The aim of the study is to clarify the morphological delimitation, and geographical distribution for each recognized species of this complex in China. The results show that: (1) nine species are recognized for the complex in China, namely B. apiculatum Schwägr., B. atrovirens Brid., B. bornholmense Wink. & R. Ruthe, B. clavatum (Schimp.) Müll. Hal., B. radiculosum Brid., B. rubens Mitt., B. sauteri Bruch & Schimp., B. stellituber Arts and B. tuberosum Mohamed & Damanhuri. B. stellituber represents a new record for China, whereas sporophytes are for the first time recorded in two populations of the new record, and the rhizoidal tubers of B. atrovirens and B. rubens are first documented from Chinese material. (2) Species of the B. atrovirens Brid. complex are ‘ephemeral’ colonists adapted to the exploitation of short-lived habitat gaps. Asexual reproduction by means of tubers was observed to be common and numerous. Identification of species within the complex relies heavily on the tuber characteristics, including its distribution (along short or long rhizoids, clustered or not), color, shape, size, cell wall thickness, presence of surface protuberance, and degree of protuberance when present. (3) The distribution at global and Chinese provincial levels for each species is summarized. An identification key to species of the B. atrovirens Brid. complex in China is presented. In conclusion, the species identification of the B. atrovirens Brid. complex can be rapidly accomplished based on the morphological characteristics exhibited by the tuber. The species newly record adds data for the moss in China.
Subjects: Biology >> Botany >> Applied botany submitted time 2020-03-24 Cooperative journals: 《广西植物》
Abstract：通过对采自广西24 个县（市）的1 147 份青藓科植物标本的逐一鉴定及相关文献的查阅，确认广西青藓科植物有11 属、44 种，其中包括广西青藓科植物新纪录属1 属，即拟异叶藓属（Pseudokindbergia），新纪录种7 种，分别为拟异叶藓（P. dumosa）、匐枝青藓（Brachythecium procumbens）、阔叶尖喙藓（Oxyrrhynchium latifolium）、泛生尖喙藓（O. vagans）、华东细喙藓（Rhynchostegiella sinensis）、长肋拟青藓（Sciuro-hypnum populeum）和弯叶拟青藓（S. reflexum）。该文提供了修订后的广西青藓科植物名录，并对其中的新纪录属、种的主要形态学识别特征、生境和地理分布等进行了详细描述。
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