| Amanita romagnesiana
Tulloss "Romagnesi's Ringless Amanita" :: Technical description (t.b.d.) BRIEF DESCRIPTION: The cap of Amanita romagnesiana is up to 120 mm or more wide, rounded-conic to campanulate at first, becoming obtuse, lacking an umbo, with a short-striate margin in the dried specimen. The original description states that the cap is bright orange-tawny, occasionally with some regions a little more brownish orange. In some apparently contaxic collections, the pileus is described as somewhat paler than this. The volva is absent. The gills are crowded, pale cream, and rather narrow in dried specimens. The short gills are truncate (?), very infrequent, and unevenly distributed. The stem is up to 300 x 15 - 20 mm, pale brownish orange, narrowing upward slightly, usually decorated with pale orange floccules, and exannulate. The flesh is white or very pale brownish orange near the surface. The saccate volva is white in the exterior, pale orangish brown in the interior, elongate, often strangulate, and membranous. The spores measure (8.0-) 9.4 - 12.8 (-21.0) x (7.2-) 7.9 - 11.4 (-17.0) µm and are subglobose to broadly ellipsoid (rarely ellipsoid) and inamyloid. Clamps are not found at bases of basidia. Amanita romagnesiana was originally described from France (Dep. Manche) from deciduous forest or mixed forest containing Norway Spruce. Herbarium collections have been located that orginated in Belgium and Germany. This is species is related to species in the group around A. crocea (Quél. in Bourd.) Singer ex Singer and has some similarities to the group including A. fulva (Schaeff.) Fr. -- R. E. Tulloss Return to Section Vaginatae page. Last changed 15 August
2004. |