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| Primula medogensis W.B.Ju, Bo Xu & X.F.Gao, in Ju, Deng, Liu, He, Gao et Xu, 2023. |
Abstract
We present a description of a newly discovered species, Primula medogensis, found in southern Xizang, China. Additionally, we explore distinctive morphological characteristics that aid in its taxonomy. The new species belongs to sect. Cordifoliae and exhibits morphological similarities to P. baileyana and P. rotundifolia. However, it can be distinguished by its densely grayish-haired roots, petioles that are 3–7 times longer than the leaf blades, a short stock surrounded by straight and withered petioles, reniform leaf blades with revolute margins, scapes shorter than or equal to leave and both at flowering and in fruiting, flowers solitary on the scapes.
Key words: Morphological characters, Primula sect. Cordifoliae, taxonomy
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| Primula medogensis sp. nov. A fresh plants B pressed specimen C thrum flower D pin flower E leaves F plants base, showing roots, bud scales and petioles G roots covered with greyish hairs H bud scales I capsule J seed. |
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| Habitat of the Primula medogensis sp. nov. (A–D) |
Primula medogensis W.B.Ju, Bo Xu & X.F.Gao, sp. nov.
Diagnosis: This new species is similar to P. baileyana and P. rotundifolia, but it differs from them in having roots with hairs, straight petiole remaining from the previous year, leaf blade reniform and revolute at the margin, petiole more than 3 times the length of the leaf blade, scape equal to or shorter than the leave, flower solitary at the apex of the scape, capsule shorter than the calyx.
Etymology: The specific epithet refers to the administrative county name of the type locality viz Motuo (Medog) county in southeast Xizang Autonomous Region, China.
Distribution and habitat: The new species is currently known only from its type locality in Lage, Motuo (Medog) county, Xizang Autonomous Region. It grows in the cracks of steep wet cliffs covered with moss, at elevations of 3550–3700 m.
Wen-Bin Ju, Heng-Ning Deng, Feng Liu, Xing-Jin He, Xin-Fen Gao and Bo Xu. 2023. Primula medogensis, A New Species of Primulaceae from Tibet of China. PhytoKeys. 230: 107-114. DOI: 10.3897/phytokeys.230.107008
