32 NORTH AMERICAN FLORA [Volume 10 



smooth, hyaline, 9-12X4-7 fx; stipe equal, pale-purple, glabrous, hollow, with a fibrous-looking 

 rind, 6 cm. long, 1 cm. thick. 



Type locality: Cuba. 



Habitat: Rotten logs in woods and rich soil in coffee plantations. 



Distribution: Mexico and Cuba. 



Doubtful speciks 



Agaricus (Tricholoma) consobrinus Berk. & Mont.; Mont. Syll. Crypt. 99. 1856. De- 

 scribed from specimens collected by Sullivant on dead wood near Columbus, Ohio. Two 

 sporophores are preserved in the Montagne Herbarium in Paris, but they give very little idea 

 of what the species must have been when fresh. The spores of these type specimens are ellip- 

 soid, smooth, hyaline, granular, 7X5.5 n. The species is described as umbonate, 10-13 cm. 

 broad, with pale-lilac surface, broad and crowded lamellae, and a subbulbous stipe 7-9 cm. 

 long and reaching 2 cm. thick. This would call for a plant resembling Collybia platyphylla, 

 but the surface of that species could hardly be described as pale-lilac. 



Agaricus (Tricholoma) mucifer Berk. & Mont.; Mont. Syll. Crypt. 99. 1856. Described 

 from Ohio and evidently near Melanoleuca transmutans. See note in Mycologia for March, 

 1914. 



Agaricus {Tricholoma) reticulatus Johnson, Bull. Minn. Acad. 1: 354. 1880. Described 

 from plants collected in woods on Nicollet Island, Michigan. Pileus reddish, viscid, reticulate, 

 4 cm. broad; lamellae white; stipe bulbous, radicate, white. The types no longer exist. 



44. CORTINELLUS Roze, Bull. Soc. Bot. Fr. 23: 50. 1876. 



Fleshy, putrescent, solitary or gregarious, rarely cespitose, wood-loving or terrestrial; 

 surface dry, conspicuously decorated with fibrils or scales, usually bright-colored; context 

 usually thick; lamellae sinuate or adnexed; spores hyaline, usually ellipsoid and smooth; 

 stipe central or slightly eccentric, fleshy; veil remaining as a vestiture on the pileus. 



Type species, Agaricus vaccinus Schaeff. 



Plants growing on decayed wood. 



Pileus yellow or yellowish, the scales brownish. 



Lamellae and context white. 1 . C. decorosus, . 



Lamellae and context yellow. 2. C. decorus. 



Pileus some shade of red or purple, sometimes yellowish with age; stipe 

 concolorous. 

 Pileus dark -red or purple; lamellae white to yellow. 3. C. rulilans. 



Pileus bright-reddish-cinnamon ; lamellae light-chestnut-colored. 4. C. cinnamomeus '. 



Pileus white or pale-brown. 



Pileus white, with dark-umbrinous, floccose fibrils. 5. C. Glatfelteri. 



Pileus pale-brown, with brown, fasciculate hairs. 6. C. hirtellus. 



Plants growing in the soil. 



Pileus white, 10 cm. or more broad. 7. C. grandis. 



Pileus gray or grayish-brown, reaching 7.5 cm. broad. 8. C. multiformis. 



Pileus some shade of red or reddish -brown. 

 Spores globose or subglobose, 3.5-6 fx. 



Pileus and lamellae pale with a reddish tint. 9. C. subrufescens . 



Pileus reddish-brown; lamellae sordid-white to bay. 10. C. mutifolius. 



Spores ellipsoid, 5-7 X4r-6 fi; lamellae becoming reddish -spotted. 11. C vaccinus. 



1. Cortinellus decorosus (Peck) Murrill. 



Agaricus (Tricholoma) decorosus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 42. 1873. 



Pileus firm, at first hemispheric, then convex or nearly plane, often cespitose, 2.5-5 cm. 

 broad; surface adorned with numerous brownish, subsquarrose, tomentose scales, dull-ochra- 

 ceous or tawny; context white; lamellae close, rounded and slightly emarginate behind, the 

 edges subcrenulate ; spores broadly ellipsoid, 5X3.7^; stipe solid, equal or slightly tapering 

 upward, white and smooth at the top, elsewhere tomentose-squamulose and concolorous, 5-10 

 cm. long, 4-8 mm. thick. 



Type locality: Catskill Mountains, New York. 



Habitat: On rotten logs in woods. 



Distribution: New York. 



Illustrations: Ann. Rep. N. Y. State Mus. 25: pi. l,f. 1-4. 



