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| Elatostema xingyiense L.D. Duan & D.H.Yin, in Yin, Huang, Lu et Duan, 2021. |
Abstract
The new series Elatostema section Weddellia series Xingyiensia L.D. Duan & D.H. Yin (Urticaceae) is described. In addition, its new species Elatostema xingyiense L.D. Duan & D.H. Yin, endemic to Guizhou Province, is also described and illustrated with photographs. The new series is morphologically similar to series Melanocarpa W.T. Wang and series Sublinearia W.T. Wang. The new species is most similar to E. melanocarpum, E. sublineare, E. obscurinerve, E. langicuspe and E. youyangense in morphology, but can be visibly distinguished by a combination of characters, including leaf vein, male inflorescences, female inflorescences and persistent tepals.
Keywords: Elatostema xingyiense, series Xingyiensia, taxonomy
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| Elatostema xingyiense L.D. Duan & D.H.Yin A habit B male flower C male inflorescence in fresh specimen D male inflorescence E male inflorescence and secondary peduncle F female inflorescence in fresh specimen G female inflorescence H blades in fresh specimen I bract longitudinally 3-ribbed. Photos: Lin-Dong Duan and Dan–Hong Yin. |
Elatostema xingyiense L.D. Duan & D.H. Yin, sp. nov.
Relationship: This new species is closely related and similar to Elatostema melanocarpum (Wang 2013), Elatostema sublineare (Wang 1980), Elatostema obscurinerve (Wang 1980), Elatostema langicuspe (Wang 2013) and Elatostema youyangense (Wang 1984). This new species is visibly distinguished by a combination of characters: leaf mid-vein impressed, leaf margin revolute (mid-vein flat, margin flat in the other five species); pistillate inflorescence peduncle dichotomously branched (not branched in the other five species) (Table 1).
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Dan-Hong Yin, Teng-Fei Huang, Zhen Lu and Lin-Dong Duan. 2021. A New Species and A New Series of Elatostema (Urticaceae) from south-western China. PhytoKeys. 180: 65-71. DOI: 10.3897/phytokeys.180.65813