Jan. 1907] North American Species of Lepiota 7 



74. LEPIOTA PROCERA, Agaricus procerus Scopoli, 

 Flora Carn. 1772; Amanita petiolo procero, annulato^ in 



ACETABULUM PILE! IMMISSO, ETC., HaLLER, HiST. StIRP. HeL- 

 VETIAE, 1768. 



Pileus fleshy, ovoid then campanulate and expanded, um- 

 bonate; the flesh thick, soft, white, deeply impressed around the 

 apex of the stipe ; the dermis beneath the cuticle radiately fibril- 

 lose and rufescent ; the cuticle thick, at first smooth and continu- 

 ous, rufous to umber in color, at length torn asunder, except 

 upon the umbo, into large irregular scales which become scat- 

 tered and gradually fall away. Stipe tall, tapering upward from 

 a bulbous base, fistulous, fibrous-stuffed; the cuticle thin, floe- 

 culose, rufous or brownish, at length drawn apart into minute 

 scales ; the annulus thick, soft, subcoriaceous, mobile, raised 

 high upon the stipe. Lamellae broad, close, white or pinkish, 

 tapering slightly inward, free and remote from the apex of the 

 stipe; spores elliptic or obovoid, apiculate, 14-18x9-11 mic. with 

 one or more oily guttulae. 



Solitary or gregarious, growing in meadows, pastures and 

 open woods. Recorded from all parts of N. America. Pileus 

 8-16 cm. in diameter; the stipe 15-25 cm. in height, the bulbous 

 base 2-3 cm. in thickness, tapering upward from 12-16 mm. below 

 to 8-12 mm. at the apex. A splendid Agaric, known from the 

 earliest times and found in all the countries of the earth. 



75. LEPIOTA RHACODIOIDES P. Hennings, in 

 Engl. Bot. Jahrb, 1901 ; Sylloge XVII, 3. 



Pileus fleshy, campanulate-explanate, obtusely umbonate, 

 covered as far as the middle with scattered, broad, brown, mem- 

 branaceous scales, around the margin even, glabrous, whitish. 

 Stipe very tall arising from a bulbous base, cylindric, even, 

 glabrous, whitish or brownish; the annulus thick, mobile. La- 

 mellae free, close, lanceolate, whitish; spores elliptic, 12-17 x 

 8-10 mic. uniguttulate. 



Growing among old leaves. Pileus 15-20 cm. in diameter; 

 the stipe 20-30 cm. in height, the bulbous base 3-4 cm. in thick- 

 ness, tapering upward to 2-3 cm. The pileus lacks the umbo of 

 L. procera and appears to be covered all over with the brown 

 shaggy scales, which at length are deciduous around the margin 

 and quite to the middle. This or a similar plant is reported from 

 western New York by Prof. Peck in the 48 N. Y. Report; it is 

 probably to be met with elsewhere. It differs from Lepiota 

 rhacodes in having the spores of L. procera. 



