Amanita orienticrocea - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
[print] [map]
name Amanita orienticrocea
name status nomen acceptum
author Zhu L. Yang, Yang-Yang Cui & Qing Cai
intro This text is derived from the original description of Amanita orienticrocea.  The fruiting bodies of Amanita orienticrocea are medium-sized to large.
cap The fruiting bodies of Amanita orienticrocea are medium-sized to large.  The cap is 50 – 110 mm wide, convex to plano-convex, often raised over the stem (umbonate), brownish, yellow-brown to yellow-gray in the center, gradually changing towards the margin to dirty yellow, cream to brownish.  The cap’s margin is radially grooved covering 20% - 30% of the cap's radius.  There is no material hanging from the edge.  The flesh is white.
gills The gills are free, crowded, and white, but with gray tinge when young.  The short gills are truncate and plentiful.
stem The stem is 70 – 150 × 7 – 15 mm, nearly cylindrical or narrowing upwards, white to dirty white, covered with indistinctly, white, dirty white to brownish squamules.  The stem lacks a basal bulb.  At the stem's base, the volva is saccate, 30 – 50 × 15 – 30 mm, membranous, outer surface is white, inner surface is grayish.
odor/taste The odor and taste were not recorded for the present species.
spores The spores measure 9.0 – 11.0 × 9.0 – 11.0 µm and are globose to subglobose and inamyloid.  There are no clamps at the bases of basidia.
discussion Amanita orienticrocea corresponds to A. cf. crocea; in Yang (2015).   Amanita orienticrocea is described from Yunnan Province, China.  It occurs on soil in pine, broad-leaved or mixed forests with Breech (Fagaceae) and Pine (Pinaceae) in southwestern China.  Amanita orienticrocea is similar to A. crocea (Quél.) Singer, but the latter has an obviously saffron orange cap, white gills lacking a gray tinge, and a stem decorated with distinctly orange squamules.— Yang-Yang Cui and Rachel Warner
brief editors RET

[top]