| name | Amanita sinicoflava |
| name status | nomen acceptum |
| author | Tulloss |
| english name | "Mandarin Yellow Ringless Amanita" |
| images |
 1. Amanita sinicoflava, New York (state), U.S.A.  2. Amanita sinicoflava, Sussex Co., New Jersey, U.S.A. |
| cap |
Amanita sinicoflava has a Chinese yellow or "curry powder colored" or yellow-olivaceous or olive-tan cap that is 25 - 70 mm wide. Striations run inward from the cap edge for about 40% of the radius. Warts or patches of pallid to grayish volva are often left on the cap, but can be washed off easily by rain. |
| gills | The gills of this species turn grayer as the mushroom ages. The very plentiful short gills are truncate. |
| stem | This mushroom has a whitish, exannulate stem (60 - 135 × 4 - 12 mm) decorated with somewhat darker fibrils. The volval remnants are saccate and submembranous and becoming progressively grayer with age beginning from the top of the sac and working downward. |
| spores | The spores measure (8.0-) 9.1 - 12.1 (-15.4) × (7.0-) 8.4 - 11.5 (-15.4) µm and are globose to subglobose (very rarely broadly ellipsoid) and inamyloid. Clamps are absent from bases of basidia. |
| discussion | The species occurs with oak, beech, and diverse conifers. It is distributed widely in the northeastern and north central United States and, probably, in southeastern Canada—fruiting from late June to October. Prior to its description, this species was often determined as "Amanita fulva" and might be found in herbaria under that name. Among taxa that are most similar macroscopically are A. mortenii Knudsen & Borgen, A. olivaceogrisea Kalaméés, and A. submembranacea (Bon) Gröger.—R. E. Tulloss. |
| brief editors | RET |
| name | Amanita sinicoflava | ||||||||
| author | Tulloss. 1988. Mycotaxon 32: 421, fig. 1. | ||||||||
| name status | nomen acceptum | ||||||||
| english name | "Mandarin Yellow Ringless Amanita" | ||||||||
| MycoBank nos. | 134067 | ||||||||
| GenBank nos. |
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| holotypes | NY | ||||||||
| 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 from the protolog of the present species and additional original research of R. E. Tulloss. | ||||||||
| basidiospores | composite of data from all material revised by RET: [645/33/25] (8.0-) 9.1 - 12.1 (-15.4) × (7.0-) 8.4 - 11.5 (-15.4) µm, (L = (9.5-) 9.8 - 11.4 (-11.7) µm; L’ = 10.6 µm; W = (8.7-) 9.0 - 10.6 (-10.8) µm; W’ = 10.0 µm; Q = 1.0 - 1.14 (-1.26); Q = 1.04 - 1.09 (-1.10); Q’ = 1.06), inamyloid, thin-walled, hyaline, globose to subglobose to occasionally broadly ellipsoid, frequently slightly adaxially flattened; apiculus sublateral to rarely lateral, truncate conic to cylindric, can be rather large relative to spore size; contents guttulate; white in deposit. | ||||||||
| ecology |
Solitary to occasionally subgregarious. At 10-1,000+ m elev. Maine: In mixed woods of Abies, Picea, and Thuja. Massachusetts: In thin layer of damp loam over rock in moss under A. balsamea or in loam under Acer, Fraxinus, Betula papyrifera, and scattered Fagus grandifolia. Michigan: In Tsuga canadensis and northern hardwoods forest. New Jersey: With B. lutea f., T. canadensis, Tilia sp., and Ulmus sp. or in typical Quercus-Pinus rigida barrens or in sandy soil of woods dominated by A. rubrum, Q. alba, Q. velutina, and Rhododendron. New York: In duff over acid, glacial out-wash sands under T. canadensis, F. grandifolia, and Prunus sp. or in wet loam in mixed deciduous woods composed of Acer sp., Carya sp., Quercus coccinea and | ||||||||
| material examined |
U.S.A.: CONNECTICUT—New London Co. - Pachaug St. For., 2.vii.2008 NEMF 2008 participant s.n. (RET 446-9).
MAINE—Aroostook Co. - ca. Guerrette, | ||||||||
| citations | —R. E. Tulloss | ||||||||
| editors | RET | ||||||||
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Spore data sets and their composite
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