name | Amanita verrucosivolva |
name status | nomen acceptum |
author | Zhu L. Yang |
english name | "Asian Warted-Sack Ringless Amanita" |
images | |
intro | The following is based on the original description of A. verrucosivolva. |
cap | The fruiting bodies of Amanita verrucosivolva are medium-sized to large. The cap is 70 - 140 mm wide, convex to applanate to concave, often distinctly umbonate, at first yellowish, becoming orange to yellow when mature, often yellowish towards margin, usually glabrous; the cap margin is tuberculate-striate (30% to 40% of radius), non-appendiculate; and the context is white. |
gills |
The gills are free, crowded, and white to cream, with edges yellowish; the short gills are truncate. |
stem | The exannulate stem of A. verrucosivolva is 100 - 220 × 10 - 20 mm, subcylindric or slightly tapering upwards, with a lower half that is white to ream and covered with yellow to orange, snakeskin-like squamules, while the upper half is yellowish to orange. The context is white and hollow; the stipe lacks a basal bulb; the volva on the stipe's base is saccate, 40 - 80 × 20 - 35 mm, 1 - 4 mm thick, with its outer surface white to dirty white and with brownish to ferruginous, conical to verrucose warts. The inner surface of the volva is white, and the volva's internal limb is yellow to yellowish. |
odor/taste |
Odor of sauerkraut. Taste is mild. |
spores | The spores of this species measure (9.0-) 10.0 - 12.5 (-14.0) × (8.5-) 9.0 - 12.0 (-14.0) µm, are globose to subglobose, and are inamyloid. Clamps are absent from the bases of the basidia. |
discussion |
This species was originally
described from Yunnan Province, southwestern
China. It has also been found in Hubei
Province, central China.—Zhu L. Yang [Note: the reader may wish to compare this species with other species of section Vaginatae having a somewhat similarly decorated volva—A. strobilaceovolvata Beeli, A. strobilaceovolvata sensu Pegler & Shah-Smith, A. madagascariensis L. P. Tang et al., and A. tomentosivolva Zhu L. Yang. Note that several of these taxa have only recently been recognized as belong in the Vaginatae because they have annulate stems.—ed.] |
brief editors | RET |
name | Amanita verrucosivolva | ||||||||||||
author | Zhu L. Yang. 1997. Biblioth. Mycol. 170: 111, figs. 91-95. | ||||||||||||
name status | nomen acceptum | ||||||||||||
english name | "Asian Warted-Sack Ringless Amanita" | ||||||||||||
MycoBank nos. | 444658 | ||||||||||||
GenBank nos. |
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holotypes | HKAS | ||||||||||||
intro |
The following text may make multiple use of each data field. The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material. The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate. Olive text indicates a specimen that has not been thoroughly examined (for example, for microscopic details) and marks other places in the text where data is missing or uncertain. The following material is derived entirely from the protolog of the present taxon. NOTE: Spore measurements from papers by Z. L. Yang use his "Times New Roman" face for "Q" and "Q'"—respectively, " | ||||||||||||
basidiospores |
from protolog (Yang, 1997): [220/7/4] (9.0-) 10.0 - 12.5 (-14.0) × (8.5-) 9.0 - 12.0 (-14.0) μm, ( | ||||||||||||
ecology | from protolog: Solitary or in small groups. At 1900 - 2000 m elev. In subtropical forests with Castanopsis, Lithocarpus, and Magnolia species. | ||||||||||||
material examined | from protolog: CHINA: YUNNAN—Honghe Hani and Yi Autonomous Prefecture - Pingbian Miao Autonomous Co., Daweishan, 2000 m elev., 4.vii.1992 Z. L. Yang 1865 (paratype, HKAS 32503). Wenshan Zhuang and Miao Autonomous Prefecture - Maguan Co., Gulinjing, 1900 m elev., 29.vi.1992 Z. L. Yang 1852 (paratype, HKAS 32500); Maguan Co., Gulinjing, 2000 m elev., 29.vi.1992 Z. L. Yang 1815 (holotype, HKAS 28253), 1.vii.1992 P. G. Liu 1225 (paratype, HKAS 32501). | ||||||||||||
citations | —Z. L. Yang | ||||||||||||
editors | RET | ||||||||||||
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name | Amanita verrucosivolva |
bottom links | [ Keys & Checklists ] |
name | Amanita verrucosivolva |
bottom links | [ Keys & Checklists ] |
Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer; and explanations prepared for this site talk about specimen-observer pairs associated with each data set. Combining more data into a single data set is non-optimal because it obscures observer differences (which may be valuable for instructional purposes, for example) and may obscure instances in which a single collection inadvertently contains a mixture of taxa.