Part 2, 1917] AGARICACEAE 189 
DOUBTFUL AND EXCLUDED SPECIES 
Pluteus alveolatus (Cragin) Sace. Syll. Fung. 5: 679. 1887. (Agaricus alveolatus Cragin, 
Bull. Washburn Lab. 1:20. 1884.) See Lentinula reticeps, Mycologia 7: 291. 1915. A 
number of good specimens are to be found at Albany. 
Pluteus chrysophlebius (Berk. & Rav.) Sacc. Syll. Fung. 5: 678. 1887. (Agaricus chryso- 
phiebius Berk, & Rav.; Berk. & Curt. Ann. Mag. Nat. Hist. III. 4: 289. 1859.) Described 
from specimens collected un dead logs in South Carolina. Specimens examined at Kew while 
working tropical material were found to be near P. laetifrons, but with longer stipe, etc. The 
description is almost identical with that of Pluteus admirabilis and the two species are prob- 
ably not distinct. ; 
Pluteus Curtisii (Berk.) Sace. Syll. Fung. 5: 675. 1887. (Agaricus Curtisti Berk. Jour. 
Bot. & Kew Misc. 1:98. 1849.) Described from specimens collected in South Carolina and 
reported from other southeastern states. When examined at Kew, I saw no difference between 
this species and P. cervinus and they are probably not distinct. ‘ 
Pluteus nanus (Pers.) Quél. Champ. Jura Vosg. 82. 1872. (Agaricus nanus Pers. Syn. 
Fung. 357. 1801.) A number of different specimens are called P. nanus at Albany, but none 
of them appears to be the true P. manus of Europe, according to authentic material from 
" Bresadola and Romell. 
Pluteus stercorarius Peck, Bull. Torrey Club 22: 488. 1895. ‘This species belongs in 
the genus Locellina. 
Pluteus umbrosus (Pers.) Quél. Ench. Fung. 55. 1886. (Agaricus umbrosus Pers. Ic. 
Descr. Fung. 8. 1798.) This species, according to the best material available, appears to 
be only a dark form of P. cervinus. The American specimens certainly do not warrant specific 
distinction. , 
60, CHAMAEOTA (W. G. Smith) Earle, Bull. N. Y. Bot. Gard. 
5:446. 1909. 
Agaricus § Annularia Schulzer, Verh. Zool.-Bot. Ges. Wien 16:49. 1866. 
Agaricus § Chamaeota W. G. Smith. Clavis Agar. 15. 1870. 
Annularvia (Schulzer) Gill. Champ. Fr. 389. 1876. Not Annularius Roussel, 1806. 
Pileus fleshy, putrescent, easily separating from the stipe, solitary or gregarious; lamellae 
free; spores pink or salmon-colored; stipe central, fleshy; veil persistent, forming an annulus. 
Type species, Agaricus xanthogrammus Cesati. 
Pileus white or yellow; species occurring in temperate North America. 1c. mammillata. 
Pileus dark-red; species occurring in tropical North America. 2. C. Broadwayi. 
1. Chamaeota mammillata (Longyear) Murrill. 
Annularia mammillaia Longyear, Rep. Mich. Acad. Sci. 3: 59. 1902. 
Annularia sphaerospora Peck, Bull, Torrey Club 33: 216. 1906. 
Pileus fleshy but thin, conic or subcampanulate to expanded, distinctly umbonate, 
solitary or cespitose, 2~6 cm. broad; surface silky-fibrillose, yellow, fading to whitish either 
wholly or in part, the umbo yellow or brownish; lamellae free, crowded, ventricose, thin, 
whitish or cream-colored, becoming flesh-colored; spores globose or subglobose, smooth, 
salmon-colored, 5-6 4; cystidia spindle-shaped, 50 X 204; stipe equal or slightly tapering 
upward, fibrous, substriate, whitish, solid, 3-8 cm. long, 2-8 mm. thick; annulus white, medial 
or basal, persistent. 
Type Locality: Greenville, Michigan. 
Hasirar: On dead logs in woods. 
DISTRIBUTION: Michigan. : 
ILLUSTRATION: Rep. Mich. Acad. Sci. 3: pl. 1, f. 4. 
2. Chamaeota Broadwayi Murrill, sp. nov. 
Pileus firm, convex to expanded, 3-6 cm. broad; surface densely floccose-tomentose, at 
length subareolate, dark-red, becoming reddish-brown on drying, margin even, not striate; 
lamellae free, crowded, rather narrow, reddish-brown in dried specimens; spores ellipsoid, 
