|
[ go to A. sinensis var. subglobispora ] Amanita sinensis Zhu L. Yang var. sinensis
Technical description (t.b.d.) BRIEF DESCRIPTION: The fruiting bodies of A. sinensis are medium-sized to large. The cap is 70-120 mm wide, convex to planate, whitish to grayish; its center is grayish to dark gray, and its margin is short-striate. It is covered with gray, dark gray to gray-brown, subconic warts which are 2-4 mm wide and up to 3 mm high. Its flesh is white. The gills of this species are free to subfree, crowded, white to cream-colored; and the short gills are truncate and of diverse lengths. The stem is 100 - 150 x 10 - 25 mm, subcylindric to attenuate upwards; its surface is dirty white to grayish, and covered with grayish, gray to dark gray farinose squamules; the stem's basal bulb is 20 - 35 mm wide, ventricose to nearly clavate. The stem's ring is nearly apical, its upper surface is white and lower surface grayish, and often torn from the stem during the expanding of the cap. Spores of A. sinensis measure (8.0-)9.5-12.5(-13.5) × 7.0-8.5(-9.5) µm and are broadly ellipsoid to ellipsoid, and inamyloid. Clamps are present at the bases of basidia. Amanita sinensis was originally described from China. It occurs in mixed forests with broad-leaved trees and conifers. Its range extends from Nepal to China to Japan. Amanita sinensis is characterized by its dirty white to grayish pileus with gray to dark grey verrucouse volval warts, subapical and fugacious ring on the stem, ventricose to clavate bulb, inamyloid, broadly ellipsoid to ellipsoid spores, and the presence of clamps. -- Zhu L. Yang Photo: Zhu L. Yang (Yunnan Province, China). Return to Section Amanita page. Amanita sinensis var. subglobispora Z.L. Yang, T.H. Li & X.L. Wu Technical
description (t.b.d.) BRIEF
DESCRIPTION: The fruiting bodies of A.
sinensis
var.
subglobispora are
usually large. The cap is 100-150 mm wide, convex
to almost applanate, whitish to brownish; its margin is short-striate.
It is covered with
dark gray to smoky gray, subconical warts which are
2-5 mm wide and up to 4 mm high. Its flesh is white. The
gills of this species are free to subfree, crowded, white to
cream-colored; and the short gills are truncate and of diverse lengths. The
stem is 150 - 200 x 10 - 25 mm, subcylindric to attenuate upwards; its
surface is white to whitish, and densely covered with gray to dark gray
farinose to tomentose squamules; the stem's basal bulb is 15 - 30 mm
wide and subfusiform. The stem's ring is fugacious. Spores
of this variety measure (7.5–)
8.5–10.5 (–11.0)
×
(6.5–) 7.5–9.0 (–10.0) μm and are subglobose
to broadly ellipsoid, and inamyloid. Clamps are present on the bases of
basidia. Amanita
sinensis
var.
subglobispora
was originally described from southern China. It occurs in tropical to
southern subtropical forests. -- Zhu L. Yang Return
to Section Amanita page. Last changed 3 September 2005. |
