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[ Keys & Checklist/Picturebooks ] "Olivaceous Amidella" :: Technical description (t.b.d.) BRIEF DESCRIPTION: The following description is based on Beeli (1935) and Gilbert (1941). The cap of Amanita olivacea is 40 - 50 mm wide, pale, convex, with a barely striate margin. The cap is covered with small, olivaceous, powdery, squamules that are easily removed. The flesh is firm. The gills are free, somewhat rounded near the stem, 6 mm broad, and slightly yellow (distinctly pinkish in Madame Goossens' watercolors). Its stem is 90 - 100 × 6 - 8 mm, cylindrical, stuffed, pale, with slight squamules similar to those on the cap. The flesh is white. The ring is brownish and ephemeral. The volva is membranous and very thick. The volval sac is somewhat pointed below, as shown in Madame Goossens watercolors. The taste is sweet. The spores measure 8 - 9.5 × 4.3 - 5.5 µm in diameter (1941) and are elongate and amyloid. The present species was originally described from the Republic of Congo where it occurred in dry forests. The powdery inner layer of the otherwise robust volval sac, the easily disintegrating ring, the striate margin of the cap, and the elongate spores are all consistent with placement of the present species in section Amidella. The colored lamellae are unusual in this section. The absence of a color change of the flesh when the stem is cut should be checked on fresh material especially on material in which the stipe is still expanding. -- R. E. Tulloss
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