| Amanita castaneogrisea
Contu nom. inval. =Amanita submembranacea var. bispora D. A. Reid =Amanita submembranacea sensu D. A. Reid "Chestnut and Gray Amanita"
Technical description not yet available. BRIEF DESCRIPTION: Amanita cataneogrisea is similar to A. groenlandica Bas ex Knudsen & Borgen, A. submembranacea (Bon) Gröger and A. mortenii Knudsen & Borgen, but differs from these species by, among other things, having a chestnut brown cap rather than one with olivaceous or ochraceous brown tones. The cap is approximately 70 mm wide, has a central umbo, and is striate for about half of its radius. The gills are free, crowded, and white. The short gills are truncate. The stem is approximately 150 x 15 mm, with brownish gray fibrils that may become more yellowish from handling. The volval sac becomes gray from the top down starting when expansion of the fruiting body begins and quickly becomes fragile and cracked. The spores measure (9.8-) 10.4 - 14.0 (-15.4) x (8.2-) 9.0 - 11.5 (-12.8) µm and are subglobose to broadly ellipsoid (occasionally globose or ellipsoid) and are inamyloid. Clamps are absent from bases of basidia. It occurs at least with birch and conifers. The species is known with confidence from Scotland, England, and Norway and undoubtedly is more widely spread in northern Europe. Reid's material was collected in a calcareous region. -- R. E. Tulloss Photo: R. E. Tulloss Return to Section Vaginatae page. Last changed 15 August
2004. |
