Sunday, June 9, 2024

[Botany • 2024] Hemiboea liana (Gesneriaceae) • A New Species from northern Guangxi, China


Hemiboea liana Z.P. Huang, Y.B. Lu & B. Pan,

in Z.-P. Huang, J.-H. Li, H.-M. Li, Y.-S. Huang, C. Li, Z.-J. Zhang, Q. Zhang, Pan et Lu, 2024. 
 sp. nov.李氏半蒴苣苔  ||  taiwania.ntu.edu.tw/abstract/1996

Abstract
Hemiboea lianaa species of Gesneriaceae new to science found in northern Guangxi, China, is described and illustrated. While sharing morphological similarities with H. chanii and H. sinovietnamica, the new species can be distinguished by a distinct combination of traits, such as its brown rounded squared hard stem and trigonous purple-light brown involucre. Detailed information is provided, including a morphological description, illustrations, diagnostic comparisons, and a molecular phylogenetic analysis placing the new species among 30 out of 44 species currently recognized in Hemiboea.

Keyword: Hemiboea chanii, Hemiboea rubribracteata, Hemiboea sinovietnamica, ITS, trnL-F, phylogeny, taxonomy

Hemiboea liana
A. habit plant individual, B. side view of flower, C. cross-section of the stem, D. annular disc, E. opened calyx, F. opened corolla with stamens and staminodes, G. stigma, H. pistil with the disc.

Hemiboea liana
A. habitat, B. flowering individual, C. inflorescences, D. involucre, E. side view of flower, F. front view of flower, G. opened corolla with stamens and staminodes, H. opened calyx, I. pistil with disc, J. annular disc, K. stigma, L. leave blade morphology, M. cross-section of the stem.

Hemiboea liana Z.P. Huang, Y.B. Lu & B. Pan, sp. nov.
李氏半蒴苣苔  

Diagnosis: Morphologically, H. liana and H. chanii are most similar, but they can be distinguished by the shape and length of the stem (shape: rounded square vs. subterete; length: 10–46 cm vs. 50–90 cm), leaf blade size (4.7–8.3 × 2.8–3.8 cm), shape and color of the involucre (shape: trigonous vs. diamond; color: purple-light brown vs. light green), corolla color (pink-spotted vs. pink), and the shape of the filament and anther (filament: narrowly linear vs. filiform; anther: semicircular vs. basifixed). In addition, this new species has the same involucre shape as H. sinovietnamica, but their involucres are different in color (purple-light brown vs. green). In addition, they can be distinguished by their ...

Etymology: The name of this newly discovered species, Hemiboea liana, is in honor of LI Zhen-Yu, for his significant contributions to the study of Gesneriaceae, including Hemiboea.


Zhang-Ping Huang, Jia-Hui Li, Hui-Min Li, Yu-Song Huang, Cui Li, Zhan-Jiang Zhang, Qiang Zhang, Bo Pan and Yong-Bin Lu. 2024. Hemiboea liana (Gesneriaceae): A New Species from northern Guangxi, China. Taiwania. 69(2); 229-236. DOI: 10.6165/tai.2024.69.229