| name | Amanita robusta sensu Bouriquet | ||||||||||||||||||||
| name status | sensu | ||||||||||||||||||||
| synonyms |
Amanita robusta Bouriquet nom. inval. 1941. Bull. Acad. Malgache 24(1941): 61, figs. 1-2. [Posterior homonym. ICBN §53.1] The editors of this site owe a great debt to Dr. Cornelis Bas whose famous cigar box files of Amanita nomenclatural information gathered over three or more decades were made available to RET for computerization and make up the lion's share of the nomenclatural information presented on this site. | ||||||||||||||||||||
| GenBank nos. |
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| 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 based on the description of Bouriquet (1941). | ||||||||||||||||||||
| pileus | Bouriquet (1941): over 150 mm wide, pale yellow (Seguy 270) with reddish brown denter (Seguy 340), convex then more or less expanded, broadly convex with raised center (per figure); context white, except for pale yellow region below pileipellis, ca. 20 mm thick or ca. 25% of pileus radius (per figure); margin non-striate, remaining decurved at maturity (per figure), with free membranous (apparently sterile) extension of several mm width (per figure); universal veil as partial covering of pulverulence and (often) large warts, reddish brown (Seguy 338); pileipellis separable | ||||||||||||||||||||
| lamellae | Bouriquet (1941): free and broadly ventricose (both per figure), moderately distant, cream; lamellulae plentiful, of diverse lengths. | ||||||||||||||||||||
| stipe | Bouriquet (1941): 70 × 25 mm, with published height of 120 mm apparently measured from surface of substrate to stipe apex and (hence) including part of bulb (per figure), often slightly narrowing downward, completely covered with white pulverulence when young; context solid, white; bulb dauciform, occupying ca. 95 & 40 mm (per figure); partial veil "nearly imperceptible" and "flocculose and fugacious" per text, but as pendent, lax, skirt-like annulus per figure; universal veil "totally disappearing." | ||||||||||||||||||||
| odor/taste | Bouriquet (1941): Odor agreeable. Taste sweet. | ||||||||||||||||||||
| macrochemical tests |
Bouriquet (1941): Guaiac - negative. Pyramidon - negative. NH4OH - negative. KOH - negative. FeSO4 - negative. H2SO4 - negative. POISONOUS. See "discussion" data field, below. | ||||||||||||||||||||
| pileipellis | not described. | ||||||||||||||||||||
| pileus context | not described. | ||||||||||||||||||||
| lamella trama | not described. | ||||||||||||||||||||
| subhymenium | not described. | ||||||||||||||||||||
| basidia | Bouriquet (1941): ca. 60 × 10 μm, 4-sterigmate. | ||||||||||||||||||||
| universal veil | not described. | ||||||||||||||||||||
| stipe context | not described. | ||||||||||||||||||||
| partial veil | not described. | ||||||||||||||||||||
| lamella edge tissue | not described. | ||||||||||||||||||||
| basidiospores | Bouriquet (1941): "8.5 - 11.5 × 5 - 7" μm, inamyloid [?doubtful], elongate to cylindric, at least sometimes adaxially flattened (per figure); apiculus sublateral (per figure); contents multiguttulate with additional small granules (per figure); white in deposit. From spore drawings in fig. 2: [5/-/-] 9.3 - 12.2 × 4.5 - 6.8 μm, (L' = 11.2 μm; W' = 5.7 μm; Q = 1.78 - 2.05; Q' = 1.96). | ||||||||||||||||||||
| ecology | Bouriquet (1941): Terrestral, frequent in January and February, principly in populations of Eucalyptus. | ||||||||||||||||||||
| material examined |
Bouriquet (1941): MADAGASCAR: ca. Antananarivo, | ||||||||||||||||||||
| discussion |
Experiments with dogs to test the possible toxicity of this species were reported by Bouriquet (1941): Doses varying from 250 - 600 g (fresh material) were administered both raw and cooked to dogs of average weight. The dogs vomited, and one experimental animal in four died. A necropsy was performed on the dead animal(s), and the conclusion was drawn that the death was due to poisoning. All material from Bouriquet with collection numbers beginning with "G" was sent to PC as representative of Bouriquet's novel species in April 1947 with a cover letter retained in PC that says nothing about types. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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Spore data sets and their composite
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