No.8 Zhang-Ping Huang, Jia-Hui Li, Bo Pan, Xin-Mei Qin, Qiang Zhang and Yong-Bin Lu
Hemiboea yongfuensis (Gesneriaceae): a cryptic and critically endangered new species from North Guangxi, China
Nordic Journal of Botany 2020.3.21
ABSTRACT
The limestone region of southern China is a biodiversity hotspot from where numerous rare new species have been or are being described. Here, Hemiboea yongfuensis, a new species of Gesneriaceae from a limestone hill in Guilin, North Guangxi, southern China is described and illustrated. It is similar to H. subcapitata and H. pterocaulisin morphology and coexists with both of them in the same limestone hill, but can be distinguished from the latter two by its quadrilateral stem without winged edges, corolla outside light pink and sparsely glandular-pubescent and pale pink calyx which is 5-lobed from base, as well as by molecular data from trnL-F and ITS. We provide detailed information, including morphological descriptions, illustrations, diagnostic comparisons and molecular phylogenetic affinities of the new species.
Original article link:https://onlinelibrary.wiley.com/doi/abs/10.1111/njb.02435
Figure 1. The majority-rule consensus tree generated from maximum likelihood inference analysis based on the ITS sequences withPP values (>0.50) and BS (>50%) shown below and above the branches. Newly acquired samples of H. yongfuensis are highlighted in bold.
Figure 2. The majority-rule consensus tree generated from maximum likelihood inference analysis based on the trnL-F sequences withPP values (>0.50) and BS (>50%) shown below and above the branches, respectively. Newly acquired sequences of H. yongfuensis arehighlighted in bold.
Figure 3. Hemiboea yongfuensis (a) habitat, (b) flowering individual, (c) comparison of the anatomically transected stems among H. yongfuensis, H. subcapitata and H. pterocaulis with H. subcapitata on the left, H. pterocaulis in the middle and H. yongfuensis on the right, (d)fruits, (e) involucre, (f) side view of flower, (g) front view of flower, (h) opened corolla with stamens and staminodes, (i) pistil with disc, (j)disc, (k) opened calyx.
Figure 4. Hemiboea yongfuensis. (a) habit (plant individual), (b) side view of flower, (c) opened corolla with stamens and staminodes, (d)opened calyx, (e) pistil with disc, (f) stigma, (g) disc, (h) fruits.
