74 Journal of Mycology [Vol. 14 



h. Stipe Fistulous. 



21. STROPHARIA PSEUDO-CYANEA, Agaricus 



PSEUDO-CYANEUS DeCMAZIERES CaT. 22 SeC. DuBY BoTANICON 



Gallicum, 1830; ALSO Fries, Index, 1828; Agaricus alro- 



CYANEUS PeRSOON, MyCOLOGIA EuR. 



Pileus fleshy, ovoid, then campanulate and expanded um- 

 bonate, the flesh thin, soft, white, the surface smooth, viscid, 

 green, becoming- white. Stipe slender, flexuous, hollow, smooth, 

 dry, whitish ; the annulus thin and fragile, fugacious. Lamellae 

 rather broad, white-incarnate, then brown and purpurascent ; 

 spores purplish-brown," elliptic, 7-8 x 4-5 mic. 



Growing in the rich soil of pastures and meadows ; New 

 York, Peck. Pileus 3-6 cm. in diameter; stipe 5-7 cm. long, 6-9- 

 mm. thick. This is an obscure species characterized by Fries as 

 thinner and smaller than A. aeruginosus ; also by having the 

 stipe dry, not viscid. Cooke's figures of A. albo-cyaneus must 

 be something different from the species of Fries and Karsten ; 

 they may be the generic species. 



22. STROPHARIA MELASPERMA, Agaricus mel- 

 ASPERMUS Fries Epicrisis, 1836; Cooke Illustr. 536; Agaricus 

 melanospermus Bulliard. Herb. Fr. 1791. 



Pileus fleshy, convex, then expanded and explanate or some- 

 what depressed ; the flesh thin, soft, white ; the surface smooth, 

 at first slightly viscid, whitish, straw-colored in the center. Stipe 

 nearly equal, stuffed, white, silky-fibrillose, striate at the apex ; 

 the annulus membranaceous, white, deciduous. Lamellae broad, 

 close, adnexed, ventricose, whitish, then gray-violet at length 

 blackening; spores brown, ovoid, 10x6 mic. 



Growing in meadows and pastures ; New York, Peck. Pileus 

 3-5 cm. in diameter ; stipe 4-6 cm. long, 5-7 mm. thick. 



23. STROPHARIA VIRIDULA, Agaricus viridulus 

 Schaeffer, Icones, Tab. I, 1762, Index, 1774. Agaricus aeru- 

 ginosus Curtis. Flora Land, 1777. 



Pileus fleshy, ovoid then campanulate and expanded, sub- 

 umbonate ; the flesh rather thin, white ; the dermis a thin sepa- 

 rable membrane, yellowish, smooth or with scattered superficial 

 scales, at first covered over by a dense bluish-green gluten which 

 gradually disappears. Stipe nearly equal or tapering slightly 

 upward, fistulous, below the annulus white, fibrillose or scaly, 

 at first smeared with the bluish-green gluten. Lamellae broad, 

 adnate, at first whitish, then brown, at length purplish ; spores 

 purplish-brown, elliptic, 7-9 x 4-5 mic. 



Growing on the ground in fields and on trunks in woods. 

 A common species. Pileus 5-10 cm. in diameter; stipe 6-to cm. 

 long, 5-10 mm. thick. In the form I find in this region the- 

 gluten quickly loses its color and becomes pellucid. 



