 |
| Synotis jinpingensis M.Tang, Y.Z.Xiong & Q.E.Yang, in Zhao, Chen, Yu, Tang et Yang, 2023. |
Abstract
Synotis jinpingensis (Asteraceae, Senecioneae), a new species from Jinping county in southeastern Yunnan province, China, is described and illustrated. This species is distinguished by having white ray florets in the genus Synotis, in which only species with yellow ray florets have been hitherto known. In habit and leaf shape S. jinpingensis is most closely similar to S. duclouxii, a species occurring in southwestern Guizhou, southern Sichuan and northeastern Yunnan, China, but differs, in addition to the color of ray florets, by having fewer lateral veins of leaves, obviously longer bracts of calyculus, and larger phyllaries. The membership of the new species within Synotis is strongly corroborated by evidence from floral micromorphology and phylogenetic analyses based on ITS sequence data. Color photographs of living plants, a distribution map, and provisional IUCN status of S. jinpingensis are provided.
Key words: Compositae, floral micromorphology, ITS sequence data, taxonomy
 |
| Synotis jinpingensis in the wild (Jinping, Yunnan, China) A habitat B habit C portion of stem D leaves (left three: adaxial side; right three: abaxial side) E synflorescence F capitulum (side view) G capitulum (top view) H florets (left: ray floret; right: disk floret) I phyllaries (left: adaxial side; right: abaxial side) J bracts of calyculus. |
Synotis jinpingensis M.Tang, Y.Z.Xiong & Q.E.Yang, sp. nov.
Diagnosis: Synotis jinpingensis is most closely similar to S. duclouxii in habit and leaf shape, but differs by having white (vs. yellow) ray florets, fewer nerves on the leaves (10–14 vs. 18–20), longer bracts of calyculus (6–8 mm vs. 1–3 mm), and larger phyllaries (8–10 mm long, 2–3 mm broad vs. 5–7 mm long, 1– 2 mm broad).
Etymology: The species is named after its type locality, i.e., Jinping county in southeastern Yunnan province, China.
Distribution and habitat: Synotis jinpingensis is currently known from its type locality, i.e., Jinping county in southeastern Yunnan province, China (Fig. 2). It grows in mixed forests at an altitude of ca. 2400 m above sea level.
Liao-Chen Zhao, Ren Chen, Zhi-Yong Yu, Ming Tang and Qin-Er Yang. 2023. Synotis jinpingensis (Asteraceae, Senecioneae), A New Species with white ray florets from southeastern Yunnan, China. PhytoKeys. 235: 199-210. DOI: 10.3897/phytokeys.235.112230
