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Wednesday, June 29th, 2022
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| 2:06a | [Botany • 2022] Oreocharis guangwushanensis (Gesneriaceae) • A New Species from Sichuan Province, China
Abstract A new species of Oreocharis, O. guangwushanensis from the Sichuan Province of south-western China, is described and illustrated here. This new species has a pink corolla that is different from other species of Oreocharis in southwest China and, although it is morphologically similar to O. ronganensis and O. reticuliflora, it has significant differences in the colour and shape of the corolla, the apex of the corolla limb, shape and indumentum of the filaments and a shorter pistil. A detailed description, colour photographs, distribution and habitat, as well as the IUCN conservation status, are also provided. Keywords: Didymocarpoideae, Lithophilous, new taxon, pink flowers, Sichuan flora
 Oreocharis guangwushanensis Z.L.Li & Xin Hong, sp.nov. Diagnosis: Oreocharis guangwushanensis morphologically resembles O. ronganensis and O. reticuliflora. The new species is vegetatively similar to O. ronganensis, but it differs from the latter in that the adaxial lip is 2-lobed to or above the middle (vs. lobed to near base), ovary with white pubescence (vs. glabrous), anthers in pairs (vs. anthers free), shorter tube (9–14 mm vs. 20 mm), shorter pistil (5 mm vs.12–15 mm) and filaments strongly twisted and bent at the top (vs. linear, straight). The new species resembles O. reticuliflora in habit, flower tube and the shape of the calyx, but differs by its pink limbs (vs. limbs with a network of violet stripes), filaments strongly twisted and bent at the top (vs. linear, straight), anthers in pairs (vs. anthers free), ovary with white pubescence (vs. glandular-pubescence) and shorter pistil (5 mm vs. 10–12 mm). Etymology: The specific epithet is derived from the type locality, Guangwushan Provincial Nature Reserve, Sichuan province, China. Vernacular name: Guāng Wù Shān Mǎ Líng Jù Tái (Chinese pronunciation); 光雾山马铃苣苔 (Chinese name). Zheng-Long Li, Hai-Jun Ma, Zheng-Rong Ye, De-Chang Meng, Fang Wen and Xin Hong. 2022. Oreocharis guangwushanensis, A New Species of Gesneriaceae from Sichuan Province, China. PhytoKeys. 201: 123-129. DOI: 10.3897/phytokeys.201.77574  | ||||||
| 2:34a | [Arachnida • 2022] Raveniola yangren • A New Troglobiontic Spider (Araneae, Nemesiidae) from Hunan, China
Abstract Background: Troglomorphism is rare known in Mygalomorphae. Only three troglomorphic mygalomorphs have been recorded in China: Raveniola beelzebub Lin & Li, 2020, R. lamia Yu & Zhang, 2021 and Sinopesa gollum Lin & Li, 2021. New information: A new troglobiontic species of the genus Raveniola is described from China: R. yangren sp. n. (female) from Hunan. Photos and morphological description of the new species are given. This new species has elongated appendages and degenerated eyes in order to adapt to the cave environment. It can be distinguished by the stubby, unbranched spermathecae from other Raveniola. Keywords: Asia, diagnosis, taxonomy, type
 Raveniola yangren Lin & Li, 2022, sp. n. Diagnosis: The females of Raveniola yangren sp. n. resemble R. beelzebub Lin & Li, 2020 and R. lamia Yu & Zhang, 2021 by total reduction of eyes and the pale colouration (Fig. 2A, B and E). However, the new species can be distinguished by the spermathecae unbranched (vs. branched in R. beelzebub, other Raveniola spp. from China, see Fig. 3C) and the ratio of the length of spermathecae to the width is almost 2:1 (Fig. 3A and B) (vs. 8:1 in R. lamia, see Fig. 3C-6). Etymology: The species is named after Yangren, a blind god who had hands with eyes in the palm in place of his normal eyes in Chinese traditional culture; noun in apposition. Distribution: Known only from the type locality (China, Hunan). Biology: Habitat under stones in the cave. Ye-Jie Lin, Xunyou Yan and Shuqiang Li. 2022. Raveniola yangren sp. n., A New Troglobiontic Spider from Hunan, China (Araneae, Nemesiidae). Biodiversity Data Journal. 10: e85946. DOI: 10.3897/BDJ.10.e85946  | ||||||
| 7:36a | [Botany • 2022] Gentiana susanneae (Gentianaceae, sect. Frigida) • A New Species from Sichuan, China
Abstract The region of the Qinghai-Tibet Plateau hosts a remarkable biodiversity, including a plethora of endemics. There, the process of documenting biodiversity is still ongoing, and recently, an unusual plant of Gentiana section Frigida was discovered at Cuopu Lakes (Sichuan, China). Although Flora of China identified these specimens as G. algida based upon unmistakable traits (e.g. corolla colour and length, sessile flowers), it was obvious that the Sichuanese plants strongly differed morphologically from G. algida specimens from Siberia and North America. In order to clarify their relationships, we used an integrative approach, investigating not only morphological traits, but also phylogenetic relationships (based upon plastome and rDNA-cistron), as well as chloroplast structure. Whereas the rDNA-cistron phylogeny was poorly resolved, the plastome phylogeny was well supported in both Bayesian inference and maximum likelihood analyses. Our findings indicate that the samples of G. algida from Cuopu Lakes are morphologically and genetically distinct from those collected elsewhere, supporting the recognition of a new species, G. susanneae. The new species differs from G. purdomii (another similar species) by having sessile flowers, and from G. algida by being a generally much taller plant with more and longer flowers, and by having a smaller calyx. Gentiana susanneae clusters with other species from the region of the Qinghai-Tibet Plateau from which it differs morphologically, and is only distantly related to the G. algida/G. frigida clade, which stems from a dispersal event out of Tibet. Based upon these solid lines of evidence, G. susanneae is described and illustrated (drawings and photographs). In addition, a conservation assessment and an identification key modified from Flora of China are provided. Keywords: Biogeography; Gentiana sect. Frigida; Qinghai-Tibet Plateau   Gentiana susanneae Adrien Favre, James S. Pringle and Peng-Cheng Fu. 2022. Phylogenetics Support the Description of A New Sichuanese Species, Susanne’s Gentian, Gentiana susanneae (Gentianaceae). Systematic Botany. 47(2); 506-513. DOI: 10.1600/036364422X16512564801579 |
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