Spiradiclis detianensis (Rubiaceae, Ophiorrhizeae), a new species from southwestern Guangxi, China

Autor: Yan-Hua Hu, Lei Wu, Yun-Fen Huang, Khang Sinh Nguyen, Zhao-Jie Wen
Rok vydání: 2021
Předmět:
Zdroj: PhytoKeys
PhytoKeys, Vol 184, Iss, Pp 103-110 (2021)
PhytoKeys 184: 103-110
ISSN: 1314-2003
1314-2011
DOI: 10.3897/phytokeys.184.69886
Popis: A new species of Rubiaceae, Spiradiclis detianensis is described from a limestone karst area of southwestern China. This new species is morphologically similar to S. cordata and S. spathulata. All of them have rosetted habit and long peduncles, but it differs from the former by the cuneate leaf bases (vs. basally cordate) and much longer corolla tubes (1.8–2.2 cm long vs. ca. 5 mm long), and from the latter mainly by its tubular-funnel shaped corolla (vs. slenderly salver shaped), 4.5–6.8 (vs. 1.5–2) mm in diam, inside throat and corolla densely puberulent (vs. glabrous except a ring of long hairs at the middle). It also resembles to S. tubiflora, but differs clearly by its subrosulate habit (vs. procumbent to creeping), longer leaf blades (7.0–10.5 cm vs. 0.5–2.5 cm) and longer corolla tubes (18–22 mm vs. 14–16 mm). At same time, color photos, illustrations, detailed descriptions and conservation status of the new species are provided.
Databáze: OpenAIRE