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Vol.9 No.3

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Selaginella subvaginata (Selaginellaceae), a new spikemoss from China

Journal of Species Research / Journal of Species Research, (E)2713-8615
2020, v.9 no.3, pp.221-232
Xian-Chun Zhang (Chinese Academy of Sciences)
Aleksandr Petrovich Shalimov (Chinese Academy of Sciences)
Jong-Soo Kang
Meng-Hua Zhang (Chinese Academy of Science)
Xian-Chun, Z. , Aleksandr, P. S. , Jong-Soo, K. , & Meng-Hua, Z. (2020). Selaginella subvaginata (Selaginellaceae), a new spikemoss from China. Journal of Species Research, 9(3), 221-232.

Abstract

Selaginella vaginata is a common montane species with broad distribution in China and the Himalaya region, and several species that are morphologically similar to S. vaginata are distributed in Asia. The taxonomic revision of S. vaginata and related species was performed by morphological comparison of leaves, strobili, and spores, and phylogenetic analysis. Based on these results, a new species, S. subvaginata, sp. nov., has been identified. Morphologically, S. subvaginata has intermediate form between S. vaginata and S. repanda, which differs mainly in its main stem being erect, dorsal leaves long-ciliolate on inner margin and outer margin denticulate or with 2-4 cilia at base (long-ciliolate on both inner and outer margins in S. vaginata, denticulate on both inner and outer margins in S. repanda), and acroscopic base of ventral leaves long ciliolate (sparsely long ciliolate in S. vaginata, short ciliolate to denticulate in S. repanda). Moreover, phylogenetic analysis using three chloroplast markers (rbcL, atpI, and psbA) revealed that S. subvaginata is a distinct species among the anisosporophyllous species clade in Selaginellaceae.

keywords
Selaginella subvaginata, taxonomy, rbcL, atpI, psbA

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