Part 2, 1917| AGARICACEAE 127 
Fries, Syst. Myc. 1: 198. 1821.) Reported from North Carolina and Minnesota, No 
specimens have been seen that agree with authentic material. 
Entoloma Robinsonit (Berk. & Mont.) Sacc. Syll. Fung. 5: 683. 1887. (Agaricus Robin- 
sonit Berk. & Mont.; Mont. Syll. Crypt. 114. 1856.) Described from specimens collected 
on decayed wood at Columbus, Ohio. The types at Paris are not far from E. Grayanum. 
Another specimen bearing the same number resembles Gymnopus platyphyllus, having an 
extremely long stipe. 
Entoloma sericellum (Fries) Quél. Champ. Jura Vosg. 85. 1872. (Agaricus sericeus 
sericellus Fries, Obs. Myc. 2: 145. 1818. A. sericellus Fries, Syst. Myc. 1: 196. 1821.) 
Reported from New York and Massachusetts but none of the specimens agree with authentic 
European material from Bresadola and Romell. 
Entoloma sinuatum (Bull.) Quél. Champ. Jura Vosg. 332. 1873. (Agaricus sinuatus 
Bull. Herb. Fr. pl. 579, f. 1. hyponym; 1793; Pers. Syn. Fung. 329. 1801.) Reported from 
New York, Massachusetts, and elsewhere by Peck and others. The European plant is 16 
cm. or more broad, yellowish-white, glabrous, with a long, thick stipe and poisonous context. 
59. PLUTEUS Fries, Gen. Hymen. 6. 1836. 
Pileus fleshy, putrescent, easily separating from the stipe, solitary or gregarious; lamellae 
free; spores pink or salmon-colored; stipe central, fleshy; veil none. 
Type species, Agaricus cervinus Schaeff. 
I. SPECIES OCCURRING IN TEMPERATE NORTH AMERICA, EXCEPT THOSE CONFINED TO THE 
PaciIFIc COAST 
Pileus small, 1-2.5 em. broad, rarely larger in P. roseocandidus. 
Pileus pure-white. 1. P. niveus. 
Pileus white with a rosy tint. 
Stipe 1-2 mm. thick. 2. P. sterilomarginatus. 
Stipe 3-4 mm. thick. 3. P. roseocandidus. 
Pileus grayish-white, darker on the umbo. 4. P. unakensis. 
Pileus deep-orange-yellow. 5. P. aurantiacus. 
Pileus greenish-yellow, smoky-green on the disk. 6. P. rugosidiscus, 
Pileus pale-melleous, slightly darker on the umbo. 7. P. melleus. 
Pileus pale-isabelline, with blackish, hairy disk. 8. P. lepiotiformis. 
Pileus cinnamon when moist, ochraceous when dry; stipe honey-yellow. 9. P. melleipes. 
Pileus pale-bay, chestnut on drying. 10. P. nanellus. 
Pileus yellowish-brown, dark-brown on drying, not reticulate. 11. P. glabrescens. , 
Pileus yellow or brown, rugose-reticulate. 12. P. admirabilis. 
Pileus fawn-colored, with darker, scaly disk. 13, P. squamosidiscus. 
Pileus avellaneous-umbrinous, umbrinous on the umbo. 14, P. umbrinidiscus. 
Pileus dark-brown or fuliginous. 
Stipe pallid. 15. P. atriavellaneus. 
Stipe dull-red. 16. P. eximius. 
Pileus of medium size, 3-5 cm. broad. 
Pileus cinereous or whitish, long-striate, darker and squamulose on 
the disk. 17. P. longistriatus. 
Pileus pale-isabelline, fulvous on the disk, not striate. 18. P. pallidicervinus. 
Pileus pinkish-fawn-colored. 
Disk concolorous. 19. P. campanulatus. 
Disk dark-brown. 20. P. brunneidiscus, 
Pileus yellow or reddish-yellow. 21. P. leoninus. 
Pileus golden-brown, darker on the disk. 22. P. Whiteae. 
Pileus chrome-yellow with a smoky tint, the disk reticulate. 23. P. flavofuligineus. 
Pileus orange or orange-red. 24. P. caloceps. 
Pileus reddish-umbrinous, whitish on the disk. 25. P. umbonatus. 
Pileus varying from yellow to brown, distinctly granulose. | 26. P. granularis. 
Pileus pale-ochraceous-brown; stipe 11 cm. long, 4 mm. thick. 27. P. longipes. 
Pileus dark-tan; stipe 7 cm. long, 5-8 mm, thick. 28. P. ludovicianus. 
Pileus grayish-brown, darker on the conspicuous umbo. 29. P. griseibrunneus. 
Pileus avellaneous, paler on the disk, not umbonate. 30. P. avellaneus. 
Pileus brownish. . ; 
Pileus deliquescent; stipe not twisted. 31. P. deliquescens. 
Pileus not deliquescent; stipe twisted. 32. P. tortus. 
Pileus fuliginous or dark-brown. - 
Pileus umbonate. 33, P .fuliginosus. 
Pileus not pene 34, P. fibrillosus. 
Pileus large, 5-10 cm. broad. 
Pileus finely tomentose, white, 5-7.5 cm. broad. 35, P. tomentosulus. 
Pileus slightly fibrillose to glabrous. ; 
Pileus grayish or brownish. : 36. P. cervinus. 
Pileus white, larger, with stipe 2 cm. thick. 37. P. grandis. 
