 |
| Melanoseris penghuana Ze H.Wang & H.J.Dong, in Xu, Wang, Dong, Tian, Chen et Zhong, 2024. Photographed by Qin Tian. |
Abstract
In this paper, we describe a new species, Melanoseris penghuana, from Mt. Jiaozi Xueshan located in North-central Yunnan, China. Despite its morphological similarities to M. likiangensis, M. penghuana exhibits distinct differences in leaf texture, shape of terminal lobes, indumentum of leaves, peduncles, and involucres, as well as the length of the achenes. Additionally, the conservation status of this species is classified as Vulnerable through data analysis from two field surveys.
Key words: Melanoseris likiangensis, morphology, Mt. Jiaozi Xueshan, new taxon, taxonomy
 |
| Melanoseris penghuana sp. nov. A habitat B, C plants D root E trichomes on the peduncle under an anatomy microscope F trichomes on the peduncle under a light microscope (simple filiform hairs) G, H basal leaves I capitulum J involucre K achene L pappus. Photographed by Qin Tian. |
Melanoseris penghuana Ze H.Wang & H.J.Dong, sp. nov.
Diagnosis: Melanoseris penghuana is most similar to M. likiangensis, but differs from the latter primarily in the following characteristics: leaves thick papery (vs. papery), clearly hairy (vs. glabrous or sparsely hairy), terminal lobes of basal and lower leaves elongated triangular (vs. broad triangular), the length 3–4 times (vs. 1–1.5 times) that of the width; peduncles covered with simple filiform hairs (vs. multiseriate capitate glandular hairs), involucres glabrous (vs. glandular hispid), achenes ca. 9.5 mm (vs. ca. 7 mm).
Jia-Ju Xu, Ze-Huan Wang, Hong-Jin Dong, Qin Tian, Li Chen and Qian-Qian Zhong. 2024. Melanoseris penghuana (Lactucinae, Cichorieae, Asteraceae), A New Species from North-central Yunnan, China. PhytoKeys. 238: 1-10. DOI: 10.3897/phytokeys.238.116343
