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9. Betula gynoterminalis Y. C. Hsu & C. J. Wang, Acta Bot. Yunnan.  5: 381.  1983.  
贡山桦 gong shan hua 
 
 
 
 
 
 
Description from Flora of China 
Trees to 7 m tall. Branches dark purplish, glabrous. Petiole ca. 5 mm, densely villous; leaf blade broadly ovate or broadly oblong, 12-13 ×  7-8 cm, leathery or papery, abaxially densely yellow tomentose, villous along veins, adaxially glabrous, base broadly cuneate, margin irregularly and simply serrate, apex acuminate; lateral veins 16-18 on each side of midvein, raised abaxially, slightly impressed adaxially. Female inflorescences 4 in a raceme, terminal, pendulous, cylindric, 5-7 ×  ca. 1 cm; peduncle obscure; bracts ca. 8 ×  4 mm, long ciliate at apex, 3-lobed, middle lobe oblanceolate, lateral lobes spreading, narrowly oblong, ca. 1/2 as long as middle lobe. Nutlet ca. 2 ×  1.5 mm, with very narrow wings. Fl. Jun-Jul, fr. Jul-Aug. 
*  Broad-leaved forests; circa 2600 m. NW Yunnan (Gongshan Drungzu Nuzu Zizhixian)
 
 
 
 
 
 
 
 
                         
                             
	 
                      
                         
		
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