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Amanita nivalis Greville
Yunnan: Xianggelila (Zhongdian) Xian. Sichuan-Yunnan border area. South side of Zhongdian Daxue Shan. Grazed meadows, Rhododendron thickets, limestone and shale scree slopes and outcropping ledges. 28°34'24"N, 99°48'42"E; 4280-4600 m.
On ground among Polygonum, Potentilla, Berberis, sometimes also with scattered Cyperus, dwarf Rhododendron and Juniperus at 4300 m, without other trees. Pileus 3-6 cm in diam., first gray with brownish tinge, then pale ochraceous, margin striate (R=10/35). Lamellae free, white, edge reddish to brownish. Stipe 5-7 x 0.7-1.5 cm, whitish, covered with grayish squamules. Volva 2.5-4 x 2-2.5 cm, outer surface white, with rusty spots, upper margin grayish, inner surface grayish. With a slide.
Zhu-Liang YANG
2442 25 July 1998

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