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| Paraphlomis yingdeensis W.Y.Zhao, Y.Q.Li & Q.Fan, in Guo, Zhao, Chen, Xiao, Li et Fan, 2023. |
Abstract
Paraphlomis yingdeensis (Lamiaceae), a new species from the limestone area in northern Guangdong Province, China, is described and illustrated. Phylogenetic analyses, based on two nuclear DNA regions (ITS and ETS) and three plastid DNA regions (rpl32-trnL, rps16 and trnL-trnF), suggest that P. yingdeensis represents a distinct species in Paraphlomis. Morphologically, P. yingdeensis is similar to P. foliata subsp. montigena and P. nana, but can be distinguished from the former by its densely villous lamina and calyx, not decurrent base of lamina and bristle-like-acuminate apex of calyx teeth, and distinguished from the latter by its significantly taller plant (15–20 cm vs. 1–5 cm) and larger lamina (6.2–16.5 × 4–11.5 vs. 2–7 × 1.5–4 cm), densely villous stem, lamina and calyx and yellow corolla.
Keywords: endemics, limestone, new taxon, Paraphlomideae, phylogeny
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| Line drawing of Paraphlomis yingdeensis A plant B transverse section of stem C pistil D frontal view of flower E dissected calyx (outside view) F dissected corolla G lateral view of flower. (Drawn by Rong-En Wu). |
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| Paraphlomis yingdeensis from the type locality A habitat B, C plants D stem. (Photographs: A, C, D by W.-Y. Zhao; B by Y.-Q. Li). |
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| Floral traits of Paraphlomis yingdeensis A, B inflorescences C frontal view of flower D lateral view of flower E corolla and dissected calyx (inner view) F pistil and stamens G anthers H ovary. (Photographs: A, B by Y.-Q. Li; C–H by W.-Y. Zhao). |
Paraphlomis yingdeensis W.Y.Zhao, Y.Q.Li & Q.Fan, sp. nov.
Chinese name: 英德假糙苏
Diagnosis: Paraphlomis yingdeensis is morphologically similar to P. foliata subsp. montigena and P. nana, but differs from the former in its lamina and calyx densely villous (vs. sparsely strigose), base of lamina not decurrent (vs. decurrent) and apex of calyx teeth bristle-like-acuminate (vs. acuminate) and from the latter in its plants 10–20 cm tall (vs. 1–5 cm tall), lamina 6.2–16.5 × 4–11.5 cm and densely villous (vs. 2–7 × 1.5–4 cm and densely strigose) and corolla yellow (vs. white).
Etymology: The specific epithet “yingdeensis” is derived from the type locality of the new species, i.e. Yingde City in Guangdong, China.
Guo-Xin Guo, Wan-Yi Zhao, Ya-Ping Chen, Jin-Hai Xiao, Yuan-Qiu Li and Qiang Fan. 2023. Paraphlomis yingdeensis (Lamiaceae), A New Species from Guangdong (China). PhytoKeys. 219: 107-120. DOI: 10.3897/phytokeys.219.97547
