| name | Amanita fraterna |
| name status | nomen acceptum |
| author | (Murrill) Murrill |
| english name | "Brother Amanita" |
| intro | This description is based on the original description of Murrill (1941) and type study by David T. Jenkins (1979). |
| cap | The cap of Amanita fraterna is up to 20 - 40 mm wide, plano-convex, viscid, honey colored with a rather dark brown center, with a nonstriate margin. The volval remnants are present as a few, randomly distributed, floccose patches. The flesh is thin and white. |
| gills | The gills are free, crowded, broad, white, with minutely decorated edges. |
| stem | The stem is 60 - 70 × 5 - 8 mm, cylindric, pinkish-tan, with floccose patches on the top of the bulb and lower stem. The ring is white, membranous, superior (20 mm from the top of the stem), and persistent. The stem's bulb is small. The volva is fragile. |
| odor/taste | Odor and taste were not reported for this mushroom. |
| spores | The spores measure 7.8 - 8.6 × 5.5 - 5.9 µm and are ellipsoid and weakly amyloid. Clamps are absent at bases of basidia. |
| discussion |
This species was originally described from Florida, U.S.A. under oak. Little is known of this species.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita fraterna | ||||||||||||||||||||
| author | (Murrill) Murrill. 1941. Mycologia 33: 448. | ||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||
| english name | "Brother Amanita" | ||||||||||||||||||||
| synonyms |
≡Venenarius fraternus Murrill. 1941. Mycologia 33: 436. 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. | 284055, 291943 | ||||||||||||||||||||
| GenBank nos. |
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| holotypes | FLAS | ||||||||||||||||||||
| type studies | Jenkins. 1979. Mycotaxon 10: 180. | ||||||||||||||||||||
| 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 | from protolog: 20 - 40 mm wide, "dull melleous with subfuligineous disc," viscid; context thin, white; margin nonstriate; universal veil as scattered fragments. | ||||||||||||||||||||
| lamellae | from protolog: free, crowded, white, broad, with edges fimbriate; lamellulae not described. | ||||||||||||||||||||
| stipe | from protolog: 60 - 70 × 5 - 8 mm [length probably includes bulb], whitish, cylindric above bulb, floccose; bulb small; context "rosy isabelline throughout"; partial veil superior, attached about 20 mm below apex, white, membranous, persistent; universal veil "fragile." | ||||||||||||||||||||
| odor/taste | not desribed. | ||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||
| basidiospores | from type study of Jenkins (1979): [-/-/1] 7.8 - 8.6 × 5.5 - 5.9 μm, (Q = 1.32 - 1.56; Q' = 1.46), hyaline, thin-walled, weakly amyloid, ellipsoid, often adaxially flattened; apiculus sublateral, short, truncate-conic; contents guttulate; color in deposit not recorded. | ||||||||||||||||||||
| material examined |
from type study of Jenkins (1979):
U. S. A.: FLORIDA—Alachua Co. - Gainesville, 7.vi.1938 W. A. Murrill F 16376 (holotype, FLAS). [Note: A second collection is mentioned in the protolog—Gainesville, 8.vi.1938 W. A. Murrill F 16377 (paratype, FLAS).] | ||||||||||||||||||||
| discussion | It is possible that A. sp-F14 and/or A. sp-N47 may be identifiable with the present species. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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Spore data sets and their composite
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