| الوصف: |
Prunus quanzhouensis Jian L. Li, S. H. Liang & R. H. Jiang sp. nov. (FIGURE 1 A–K) Type:— CHINA. Guangxi Zhuangzu Autonomous Region, Guilin City, Quanzhou County, Tianhu National Wetland Park, 26°8′23″N, 110°51′39″E, 1500 m, 23 March 2023, Jiang R. H. et al . QZ202303001 (Holotype GXFI!), flowering stage (FIGURE 2). Paratype:— CHINA. Guangxi Zhuangzu Autonomous Region, Guilin City, Quanzhou County, Tianhu National Wetland Park, 26°8′48″N, 110°52′00″E, 1556 m, 7 April 2023, Li J. L. et al. 2023040702 (GXFI!), young fruit stage; 26°8′41″N, 110°52′03″E, 1579 m, 28 April 2023, Liang S. H. et al. 2023042805 (GXFI!), mature fruit stage. Diagnosis:— Prunus quanzhouensis shares many similarities with P. campanulata , but there are several key differences that set it apart: the stipules are shed at a young fruit stage rather than being soon caducous during flowering; the involucral bract is abaxially glabrous and adaxially densely villous as opposed to both surfaces villous; the bract is green and is 5–6 mm long rather than brown and 1.5–2 mm long. Additionally, the number of flowers per umbel is flowered 1–3 with a diameter of 1–1.2 cm (compared to flowered 2–4, diameter 1.5–2 cm), and has triangular ovate sepals with oblique extension (as opposed to oblong and reflexed sepals). It can also be distinguished from Prunus conradinae (Fig. 1, L–M) by its 10–13 pairs of lateral veins on leaves (as opposed to 7–9 pairs), tubular hypanthium, ca. 9× 3 mm, wide at the top and narrow at the base (compared to tubular-campanulate, ca. 4× 3 mm, equal base and top width), sparsely pilose pedicel (vs. glabrous), and a villous style that is longer than the stamens (vs. glabrous, shorter than stamens or slightly longer). Although P. quanzhouensis shares some flower features with P. xueluoensis Nan & Wang in Nan et al. (2013), such as tubular hypanthium and triangular-ovate sepals, it can be easily distinguished by its sepals oblique extension (vs. extending at full length), sparsely pilose pedicel (vs. villous) and villous style ... |