name | Amanita sychnopyramis |
name status | nomen acceptum |
author | Corner & Bas |
english name | "Forest of Pyramids Amanita" |
images | |
cap |
The cap of A. sychnopyramis is 20 - 75 mm wide, convex to plane with a depressed center, finally even concave, slightly viscid, with a tuberculate-striate margin. The cap is fuscous fawn or grayish brown, umber or fuscous bay over center, streaked by innate darker fibrils, and paler toward the margin. The flesh is white and soft. The cap is set with pale grayish white, gray or grayish-brownish, small, floccose, pyramidal warts. |
gills |
The gills are free, crowded, thin, and white. |
stem |
The stem is 40 - 80 × 5 - 11 mm, with a slightly pointed base, tapering upward, becoming hollow, exannulate, white, grayish-brownish near the base. The flesh is brittle. The upper part of the swollen base is set with pale grayish or brownish white, very small, scurfy particles arranged in several irregular circles. |
odor/taste | not described. |
spores |
According to Corner & Bas (1962), the spores measure 6.3 - 8.1 µm wide and are globose to subglobose and inamyloid. Clamps are not found at bases of basidia. |
discussion |
Described from forest in Singapore, the species has also been reported from Malaya.—R. E. Tulloss |
brief editors | RET |
name | Amanita sychnopyramis | ||||||||
author | Corner & Bas. 1962. Persoonia 2: 291, pl. 8c, 9b, figs. 38-39. | ||||||||
name status | nomen acceptum | ||||||||
english name | "Forest of Pyramids Amanita" | ||||||||
etymology | συχνος "many" + πυραμις "pyramid" | ||||||||
MycoBank nos. | 326116 | ||||||||
GenBank nos. |
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holotypes | L | ||||||||
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. | ||||||||
odor/taste | Odor and taste not recorded. | ||||||||
macrochemical tests |
none recorded. | ||||||||
basidiospores | from protolog: [-/-/-] 6.3 - 8.1 × 6.3 - 8.1 μm, (Q = 1.0 - 1.10), hyaline, colorless, thin-walled, inamyloid, globose to subglobose; apiculus proportionately rather large; contents mono- to multiguttulate; color in deposit not recorded. | ||||||||
ecology | Singapore: Terrestrial in forest. | ||||||||
material examined | from protolog: SINGAPORE: Bukit Timah, 16.viii.1939 E. J. H. corner s.n. (paratype, L), 21.viii.1939 E. J. H. Corner s.n. (holotype, L), 23.iv.1940 E. J. H. Corner s.n. (paratype, L, watercolor drawing only), 7.iv.1941 E. J. H. Corner s.n. (paratype, L, watercolor drawing only). | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Amanita sychnopyramis |
name status | nomen acceptum |
author | Corner & Bas |
english name | "Forest of Pyramids Amanita" |
images | |
photo | double click in markup mode to edit. |
watercolor |
Prof. E. J. H. Corner (1-3) Singapore, illustration from original description (Corner and Bas, 1962) reproduced by courtesy of Persoonia, Leiden, the Netherlands. |
name | Amanita sychnopyramis |
bottom links | [ Keys & Checklists ] |
name | Amanita sychnopyramis |
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.