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

4b. Lasianthus biermannii subsp. crassipedunculatus C. Y. Wu & H. Zhu, Acta Phytotax. Sin. 32: 75. 1994.

粗梗粗叶木 cu geng cu ye mu

Lasianthus esquirolii H. Léveillé.

Branches densely appressed strigose. Leaf blade with nerves densely appressed strigose abaxially; nervules parallel and conspicuously elevated abaxially. Peduncles robust and usually longer than petioles. Calyx lobes relatively wide and long.

● Forests, shaded and wet places; 1000-1700 m. Guizhou, Hainan, Yunnan.

Rehder (J. Arnold Arbor. 16: 323. 1935) considered that Henry 11148 from Yunnan province of China, cited by Hutchinson as Lasianthus biermannii, matched the type specimen of L. esquirolii (J. Esquirol 648) from Guizhou province of China, so he reduced L. esquirolii to a synonym of L. biermannii. However, Ferguson (Notes Roy. Bot. Gard. Edinburgh 32(1): 109. 1972) contended that the type of L. esquirolii did not sufficiently match the type of L. biermannii and again recognized L. esquirolii as a separate species. Many specimens from SE Yunnan and Hainan are closely related to L. biermannii but clearly differ from it and have been treated as a geographic subspecies of L. biermannii. When the type of L. esquirolii was checked, it was concluded that L. esquirolii is the same as L. biermannii subsp. crassipedunculatus.


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