The Mycologic Flora of the 3Iiami Valley, 0. Ill 



rounrlecl behind, pale then ferruginous. Spores ferruginous-brown, 

 somewhat elliptic, .010 mm. long. 



In cavities of old stumps, on much decayed, half-buried wood, etc. 

 Pileus less than 1 in. broad. 



TABLE OF THE SUBGENERA OF PRATELLI. 



A. Stipe annulate. 



25. PsALLioTA. — Lamellae free from the stipe. 



26. Stropharia — Lamellae adnate. 



B. Stipe not annulate. 



27. Htpholoma. — Veil woven into a web which adheres to the 

 margin of the pileus. 



28. PsiLocTBE. — Veil none. 



Subgenus XXV. — Psalliota, Fr. 

 Stipe annulate Lamellae free. 



a. Annulus ample, not distant. 



125. A. ARVENsis, SchfeiT. Pileus fleshy, conic-campanulate then 

 explanate, at first floccose-mealy, afterward almost glabrous, even or 

 rivulose. Stipe hollow, floccose-medullate; annulus pendulous, ample, 

 consisting of two layers, the outer layer radiately divided. Lamellae 

 free, broader in front, reddish-white then brown. Spores elliptic, 

 variable in size, averaging .010 X.006 mm. 



In meadows and grassy grounds in fields. Pileus commonly 3-5 in. 

 broad, and stipe 3-4 in. long, but these dimensions are often greatly 

 exceeded. This is the "Horse Mushroom" of England; it is edible, 

 but is not so delicate as A. campestris. The pileus and stipe are 

 white, staining yellowish when bruised. The flesh remains white or 

 takes on only a yellowish tint when cut or broken. 



126. A. FABACEUS, Berk. — Pileus thin, somewhat fleshy, conical, 

 umbonate, at length plane. Stipe bulbous, rather slender, nearly 

 glabrous; veil ample, externally floccose. Lamellae close, free, broader 

 behind, brown then nearly black. Spores brown, nucleate on one side 

 small, .0055 mm. long. 



On the ground amongst the old leaves in woods; common. Pileus 

 3-4 in. across, stipe 3 4 in. high. The pileus is smooth, tough, feeling 

 like fine kid leather turning yellow when bruised; the stipe is bulbous 



