Fig. 9.—Ag. (Amanita) mappa (Amanita mappa) Linn., Amanita citrina, A. virosa.
Poisonous.
Cap at first convex, then expanded, dry, without a separable cuticle, not warty but showing white, yellowish, or brownish scales or patches on its upper surface; gills white, adnexed; flesh white, sometimes slightly yellowish under the skin; stem stuffed, then hollow, cylindrical, yellowish white, nearly smooth, with a distinctly bulbous base; volva white or brownish. Odor pleasant. Spores spheroidal. The cap in this species is somewhat variable in color, but those having a white cap are most common. The plant is not so tall as those of the species phalloides. It is solitary in habit, and is found usually in open woods.
Curtis and Lowerby figure mappa and phalloides under the same name.
Plate XVI.
Figs. 1 to 4.—Ag. (Amanita) vernus Bull. (Amanita verna) Linn., Amanita bulbosa, Ag. solitarius. "Vernal Mushroom," "Spring Mushroom," etc.
Poisonous.
Cap at first ovate, then expanded, becoming at length slightly depressed, viscid, white; margin smooth; flesh white; gills white, free; stem white, equal, stuffed or hollow, easily splitting, floccose, with bulbous base; volva white, closely embracing the stem, but free from it at the margin; ring reflexed; spores globose, .0003 in. broad. The plant is creamy white throughout and does not seem to be easily distinguishable from the white forms of A. phalloides. Fries and some others consider this species merely a variety of Amanita phalloides, and it is regarded as equally poisonous, the poisonous principle being the same as that of A. phalloides. It is very common in mixed woods from early spring to frosty weather.