| name | Amanita subphalloides |
| name status | insufficiently known |
| author | (Murrill) Murrill |
| english name | "False Star-Foot Amanita" |
| images | |
| intro | Based on the original description of Murrill (1945b) and a type study by David T. Jenkins (1979). |
| cap | The cap of Amanita subphalloides is 40 mm wide, convex to slightly depressed in the center, viscid, umbrinous with a very dark center, with a nonstriate margin except in age. The volval remnants are present as randomly distributed floccose patches. The flesh of this species is thin and white. |
| gills | The gills are narrow, very close, and white with a rosy tint. |
| stem | The stem is 60 × 5 - 7 mm, solid, subcylindric, white, blushing where bruised, with a few floccose-membranous patches on the top of the bulb. The ring is large, fixed 20 mm from top. The bulb is small, white, globose. The volva is mostly carried up on the cap. |
| odor/taste | This species is said to be odorless. |
| spores | The spores measure 5.5 - 7.0 (-7.8) × 5.5 - 6.2 (-7.4) µm and are globose to subglobose and amyloid. Clamps are absent at bases of basidia. |
| discussion |
Originally described from Florida, USA, under oak,
solitary, but relatively frequent in mid-summer (according
to Murrill (1945b)). Murrill's comments suggest that the bulb reminded him of A. brunnescens G.F. Atk. It's unfortunate that Murrill did not say what color the stem turned when bruised. All things considered, it seems likely that he was correct in considering A. subphalloides to be similar to A. brunnescens. There seem to be one or two small taxa with color similar to that of A. brunnescens (e.g., A. solaniolens). The status of A. subphalloides is currently unknown.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita subphalloides | ||||||||||||||||||||
| author | (Murrill) Murrill. 1945b. Quart. J. Florida Acad. Sci. 8(2): 198. | ||||||||||||||||||||
| name status | insufficiently known | ||||||||||||||||||||
| english name | "False Star-Foot Amanita" | ||||||||||||||||||||
| synonyms |
≡Venenarius subphalloides Murrill. 1945b. Quart. J. Florida Acad. Sci. 8(2): 184.
non Amanita subphalloides Bougher & K. Syme nom. illeg. 1998. ??. 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. | ||||||||||||||||||||
| MycoBank nos. | 308593, 325446 | ||||||||||||||||||||
| GenBank nos. |
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| holotypes | FLAS | ||||||||||||||||||||
| type studies | Jenkins. 1979. Mycotaxon 10: 192. | ||||||||||||||||||||
| 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 not directly from the protolog of the present taxon and not cited as the work of another researcher is based on original research by R. E. Tulloss. | ||||||||||||||||||||
| pileus | type study of Jenkins (1979): 25 mm wide, umbrinous with fuligineous disc, plano-convex; context not described; margin nonstriate; universal veil as randomly distribute floccose patches. | ||||||||||||||||||||
| lamellae | type study of Jenkins (1979): free, crowded, white with a rosy tint. | ||||||||||||||||||||
| stipe | type study of Jenkins (1979): 35 × 2 μm, white, blushing where bruised; contents solid; bulb subglobose; partial veil superior, delicate, membranous, white; universal veil as few floccose-[sub?]membranous patches on apex of stipe's bulb. | ||||||||||||||||||||
| odor/taste | neither recorded. | ||||||||||||||||||||
| macrochemical tests |
none reported. | ||||||||||||||||||||
| pileipellis | type study of Jenkins (1979): filamentous hyphae interwoven, 3 - 8 μm wide, gelatinized. | ||||||||||||||||||||
| pileus context | type study of Jenkins (1979): filamentous hyphae present; inflated cells, elongate; clamps absent. | ||||||||||||||||||||
| lamella trama | type study of Jenkins (1979): bilateral. | ||||||||||||||||||||
| subhymenium | type study of Jenkins (1979): inflated ramose to subcelluar; clamps absent. | ||||||||||||||||||||
| basidia | type study of Jenkins (1979): up to 32 × 4 - 8.5 μm, 4-sterigmate; clamps absent. | ||||||||||||||||||||
| universal veil | type study of Jenkins (1979): On pileus: filamentous hyphae moderately abundant, moderately branched; inflated cells globose to subglobose to broadly ellipsoid to ovoid, occasionally fusiform or clavate, up to 40 × 40 μm, terminal singly or in short chains; clamps absent. On stipe base: very similar to that on pileus, but with larger inflated cells up to 55 × 55 μm. | ||||||||||||||||||||
| stipe context | type study of Jenkins (1979): longitudinally acrophysalidic; filamentous hyphae up to 7 μm wide, sparsely branched, relatively inconspicuous; acrophysalides up to 212 × 34 μm; clamps absent. | ||||||||||||||||||||
| partial veil | not described. | ||||||||||||||||||||
| lamella edge tissue | not described, but probably sterile. | ||||||||||||||||||||
| basidiospores | type study of Jenkins (1979): [-/-/1] 5.5 - 7.0 (-7.8) × 5.5 - 6.2 (-7.4) μm, (Q = 1.0 - 1.13; Q' = 1.07), hyaline, thin-walled, amyloid, globose to subglobose, apiculus sublateral, cylindric; contents guttulate; color in deposit not recorded. | ||||||||||||||||||||
| ecology | not recorded. | ||||||||||||||||||||
| material examined | type study of Jenkins (1979): U. S. A.: FLORIDA— Alachua Co. - Gainesville, 1.vii.1938 Lilllan Arnold F. 17832 (holotype, FLAS). | ||||||||||||||||||||
| discussion |
This taxon should be compared to
A.
solaniolens. We have tentatively placed this species in Amanita stirps Citrina because of its similarity to A. solaniolens and its having been reported from within the range of the latter species. There is a possibility that the two name are synonyms; however, I don't see a convenient way of establishing the synonymy. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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