New Taxa
The recently published new taxa and new records of Gesneriaceae from China before 31 December 2021 (14)



No. 14  PENG-WEI LI, BO PAN, AJ HARRIS, WEI-BIN XU, MING-TAO LIU & MING KANG

 




Primulina clausa, a new species of Gesneriaceae from northern Guangxi, China




 

Phytotaxa 510(2): 187-192

 



 

 

 

 

 

 

 

 

 

 

 

ABSTRACT

  

        A new species of Gesneriaceae, Primulina clausa P.W.Li & M.Kang was described, which occurs in the karst areas of northern Guangxi Zhuang Autonomous Region of China. The new species is morphologically similar to P. obtusidentata (W.T.Wang) Mich.Möller & A.Weber, but can be readily distinguished by its short and prostrate peduncle, slightly unfolded bracts, appressed sepals, glabrous anthers, parietal placenta, and nearly straight capsules.

        Original article link: https://www.mapress.com/pt/article/view/phytotaxa.510.2.8





The recently published new taxa and new records of Gesneriaceae from China before 31 December 2021 (14)

FIGURE 1. Photographs of Primulina clausa (A–J) with comparison of P. obtusidentata (K–P). (A) Habitat; (B, K) flowering plant, showing prostrate and vertical peduncles, respectively; (C, L) inflorescence, showing slightly unfolded and spreading bracts, respectively; (D) bracts; (E) side view of corollas; (F, M) front view of corolla, showing similar stigma shape; (G) longitudinal dissection of corolla; (H, N) capsule, showing nearly straight capsule with short pedicel and falcate capsule with long pedicel, respectively; (I, O) stamen, showing glabrous and villous anthers, respectively; (J, P) transverse section of middle part of ovary, showing parietal and axile placenta, respectively. Scale bars: B, 5 cm; C–E, L, N, 2 cm; F–H, M, 1 cm; I, O, 1 mm; J, P, 0.5 mm; K, 10 cm. Note: The scanning electron microscopy illustrations (I–J, O–P) were acquired following Dong et al. (2018).

 








The recently published new taxa and new records of Gesneriaceae from China before 31 December 2021 (14)

FIGURE 2. The known geographical distribution of Primulina clausa and P. obtusidentata. The light blue shadow indicates main areas of karst based on GIS datasets from https://www.fos.auckland.ac.nz/our_research/karst/#karst5.