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| Sinocrassula holotricha J. Guan Wang, Jing Zhao & Chao Chen, in Xu, Zhao, Li, Jiang, Wang et Chen, 2025. |
Abstract
A new species of crassulacean acid metabolism, Sinocrassula holotricha, is described based on specimen collected from Sichuan Province, Southwest China. The new species can be distinguished from its morphologically and phylogenetically related species by the hairy plants and lack of rosette. In the present study, a molecular phylogeny, taxonomic description, distribution information, and photographs of this new species are presented.
Key words: Crassulaceae, Phylogeny, Rosette, Sempervivoideae
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| Sinocrassula holotricha A habit B inflorescence C, D basal leaves E, F stem leaves G, H bracts I flower J carpels K sepal L petals M stamen N nectar scale. |
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| Sinocrassula holotricha A–D habitats E, F immature plants G, H flowering plants. |
Sinocrassula holotricha J. Guan Wang, Jing Zhao & Chao Chen, sp. nov.
Diagnosis: Morphologically, Sinocrassula holotricha is similar to S. ambigua and S. jiaozishanensis, but clearly differs from the latter two by its hairy plants (vs. glabrous), and similar to S. yunnanensis (Franch) A. Berger in having hairy plant, but differs from the latter in basal leaves opposite (vs. rosette), orangish-red (vs. yellowish green) petals, and ligulate (vs. quadrate) nectar scales (Table 2). The new species with the combined morphological characters of hairy plants and lack of basal rosette is obviously different from these known species.
Etymology: The specific epithet holotricha is derived from the Latin holo, meaning whole, and “trichome,” meaning hair, in reference to the plants covered by pubescence throughout.
Zhi-Bai Xu, Jing Zhao, Rong-Juan Li, Hong Jiang, Jia-Guan Wang and Chao Chen. 2025. Sinocrassula holotricha (Crassulaceae), A New Species from Sichuan, China. PhytoKeys. 251: 241-250. DOI: doi.org/10.3897/phytokeys.251.134633
