Toadstools, mushrooms, fungi, edible and poisonous; one thousand American fungi / How to select and cook the edible; how to distinguish and avoid the poisonous, with full botanic descriptions. Toadstool poisons and their treatment, instructions to students, recipes for cooking, etc., etc.

by Charles McIlvaine; Robert K. Macadam

Edible. Trelease.

When young and fresh it is excellent.

B. Monta´na Morg. Peridium subglobose with a cord-like root. Cortex a thin white continuous layer, breaking up at maturity into a mealy or furfuraceous coat, which soon falls away; inner peridium thin, flaccid, becoming brown, smooth and shining, dehiscent by an irregular torn aperture about the apex. Mass of spores and capillitium soft, lax, at first ochraceous or pale-brown, finally purplish-brown; the threads curled and flexuous, very large, with an expanse of 1.25–1.75 mm., four to seven times branched, the main stem 15–20µ in thickness, the ultimate branches long and tapering. Spores globose, even, 4.5–5.5µ in diameter, often with a minute pedicel.

Growing on the ground. Rocky mountains. Jones. Peridium 1½-2 in. in diameter. This differs from B. pila in being soft, flaccid, and soon collapsing; it, no doubt, is not so persistent. Microscopically it is readily distinguished by its much larger threads. Morgan.

B. nigres´cens (Vitt.) Pers.—blackish. Peridium subglobose, with a fibrous mycelium. Cortex a thin, smooth, white continuous layer, at maturity breaking up into scales, which soon disappear; inner peridium thin, flaccid, becoming dark-brown, smooth and shining, dehiscent at the apex by a lacerate mouth. Mass of spores and capillitium soft, lax, at first ochraceous or olivaceous, at length purplish-brown; the threads flexuous, about 1 mm. in extent, three to five times branched, the main stem 12–18µ thick, the ultimate branches tapering. Spores globose or oval, even, 5–6µ in diameter, with long hyaline pedicels.

Growing in old pastures, in fields and woods. Canada, Saccardo; Pennsylvania, Schweinitz; North Carolina, Curtis; Ohio, Lea; California, Harkness.

Peridium 1–2 in. in diameter. I have never succeeded in obtaining an American specimen of this species; my description is drawn up from European specimens. Morgan.

Pennsylvania, McIlvaine. B. nigrescens is a first-class puff-ball.

B. plum´bea Pers.—lead-colored. Peridium ¾-1¼ in. in diameter, depressed-globose, with a fibrous mycelium. Cortex a thin, smooth, white continuous coat, loosening at maturity and shelling off, except sometimes a small portion about the base; inner peridium thin, tough, smooth, lead-colored, dehiscent at the apex by a round or oblong aperture. Mass of spores and capillitium soft, lax, ochraceous or olivaceous, then purplish-brown, the threads .8–1.0 mm. in extent, three to five times branched, the main stem 12–16µ thick, the ultimate branches long, straight and tapering to a fine point. Spores oval, even, 6–7×5–6µ, with long hyaline pedicels.

Growing on the ground in meadows and pastures. Morgan.