No.15HUANG Cuiying, MENG Kaikai, GUO Jianqiang, CHEN Fang, LIAO Wenbo & FAN Qiang
Primulina huangjiniana (Gesneriaceae), a new species fromGuangdong, China
GuihaiaNetwork launch：2020-07-03
ABSTRACT
Primulina huangjiniana, a new species of Gesneriaceae from Mount Danxia of Guangdong Province in China, is described and illustrated here. The new species is easily distinguished from the most morphologically similar species P. depressa by its shorter bracts 2.5–6 mm long (vs. 15–30 mm long), subequal (vs. unequal) calyx lobes, filaments with glandular puberulence above the middle, and geniculate near the base (vs. glabrous and geniculate near the middle), stigma obdeltoid, deeply 2-lobed with two linear lobes (vs. lamelliform, slightly 2-lobed with two acute-triangular lobes), and parietal placenta (vs. axile placenta). Including this new species, there are six Primulina species recorded in Mount Danxia. Among therm, P. danxiaensis and P. huangjiniana are endemic to Danxia landform. Only two populations of P. huangjiniana were found with no more than 200 mature individuals in Mount Danxia. This new species could be considered as Critically Endangered (CR) according to IUCN Red List criteria.
Notes: The specific epithet is in honor of Prof. Jin Huang (1927–2016) of Sun Yat-sen University, a brilliant expert who made a great contribution to Danxia landform research.
Original article link:
https://kns.cnki.net/kcms/detail/45.1134.Q.20200702.1016.002.html
A. Habit; B. Leaves; C. Flower, lateral view; D. Flower, front view; E. Detached corolla, showing stamens andstaminodes; F. Fertile stamens; G. Stigma; H. Ovary, in longitudinal section; I. Ovary, in transverse section; J.Young capsule with sepals and bracts. (Drawn by Yunxiao Liu from the holotype)
Fig.1 Illustration of Primulina huangjiniana
A. Habitat; B. Habit; C. Rhizome; D. Cymes with flowers and flower buds; E. Flowers in front view, showing the tubular corolla; F. Flower in front view, showing the deeply bifid stigma and the linear lobs; G. Detached corolla, showing the yellowish brown marking on upper part of the interior of the corolla. [Photos taken by Qiang Fan (A-E) and Zaixiong Chen (F-G)]
Fig. 2 Photographs of Primulina huangjiniana
A. Habitat; B. Habit; C. Flowers, front view; D. Detached corolla, showing stamens and staminodes. (Photos taken by Qiang Fan)
Fig. 3 Photographs of Primulina depressa
A. Primulina danxiaensis; B. P. eburnean; C. P. fimbrisepala; D. P. rotundifolia. [Photos taken by Qiang Fan (A, D), Huagu Ye (B) and Feifei Li (C)]
Fig.4 Photographs of four Primulina species on Mount Danxia
Fig.5-10 The cultivated Primulina depressa of GCCC
