62 



Mycologia 



Pileus 1-2 cm. broad. 3 . D.fragilis. 



Pileus 2-6 cm. broad. 4. D. appendicular. 



Pileus floccose-scaly, . grayish-white ; spores small, dark, 



smooth. 5- D. Storea. 



Pileus innately-fibrillose, becoming glabrous at times, 

 some shade of reddish-brown ; spores large, dark, 



distinctly tuberculosa and apiculate. 6. D. lacrymabunda. 



Pileus glabrous, fibrillose, or squamulose ; spores large, 

 dark, smooth. 

 Pileus glabrous, bay-brown ; spores not apiculate. 



Surface moist, rugose. 7. D. delineata. 



Surface viscid. 8. D. Peckiana. 



Pileus large, reaching 10 cm. broad, densely and 

 conspicuously covered with persistent, 

 pointed scales. 9. D. echiniceps. 



Pileus reaching 5 cm. broad, woolly or less con- 

 spicuously fibrillose-scaly. 

 Spores apiculate. 10. D. rigidipes. 



Spores not apiculate. 11. D. hololanigera. 



i. Drosophila madeodisca (Peck) comb. nov. 



Agaricus madeodiscus Peck, Ann. Rep. N. Y. State Mus. 38 : 88. 

 1885. 



Hypholoma madeodiscum Sacc. Syll. Fung. 5 : 1039. 1887. 

 Hypholoma subaquilum Banning & Peck, Ann. Rep. N. Y. State 

 Mus. 44: 70. 1891. 



Pileus thin, convex to expanded, the margin often upturned, 

 gregarious to densely cespitose, 2-6 cm. broad ; surface hygropha- 

 nous, smooth or rugose, slightly atomate at times, dull-fulvous or 

 chestnut-colored when moist, becoming grayish or isabelline when 

 dry ; margin thin, even, silky-fibrillose at first ; context concolorous, 

 hygrophanous, edible, with mild taste and no characteristic odor; 

 lamellae crowded, adnexed or slightly sinuate, pallid to purplish- 

 brown ; spores short-oblong or oblong-ellipsoid, blunt at both ends, 

 smooth, guttulate, pale-purplish-brown under the microscope, usu- 

 ally about 4.5 x 3 fi, rarely reaching 7x4^; stipe equal or some- 

 what thickened at the base, glabrous or slightly fibrillose, white or 

 pallid, shining, usually hollow, 4-8 cm. long, 3-8 mm. thick; veil 

 white, appendiculate, evanescent. 



Type locality : Adirondack Mountains, New York. 



Habitat : On dead deciduous or coniferous wood, or in rich soil 

 or leaf-mold in woods. 



Distribution : Eastern Canada to North Carolina and west to 

 Colorado. 



