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FOC | Family List | FOC Vol. 19 | Rubiaceae | Lasianthus

6. Lasianthus calycinus Dunn, Bull. Misc. Inform. Kew. 1912: 367. 1912.

黄果粗叶木 huang guo cu ye mu

Shrubs, 1.5-3 m tall; branchlets appressed pubescent or strigillose to glabrescent. Petiole 8-10 mm, appressed pubescent or strigillose to glabrescent; leaf blade thickly papery, oblong-elliptic, 13-15 × 4-6 cm, glabrous adaxially, sparsely appressed pubescent to strigillose on nerves abaxially, base broadly cuneate or subrounded, apex acute to shortly acuminate; lateral veins 7-9 pairs, extending to unite with margin; nervules parallel; nerves and nervules conspicuous abaxially; stipules generally persistent, broadly triangular, ca. 2 mm, strigillose, acute. Inflorescences glomerulate to subcapitate, sessile, 4-6-flowered; bracts absent. Flowers subsessile. Calyx strigillose; hypanthium portion 1.5-2 mm; limb deeply lobed; lobes 5, linear-lanceolate to narrowly triangular, 2.5-5 mm, acute. Corolla 7-9 mm, strigillose outside; lobes 5, ovate. Fruit orange or red-orange, subglobose, 6-7 mm in diam., sparsely strigillose to glabrescent, with longitudinal elevated angles. Fl. Apr-May, fr. Sep-Oct, Dec.

● Forests, shaded and wet places; 600-700 m. Hainan.

H. Zhu (Syst. & Geogr. Pl. 72: 83. 2002) noted that this species is similar to and may even be conspecific with the poorly known species Lasianthus latifolius (Blume) Miquel of Borneo, Java, and Sumatra.


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