362 NORTH AMERICAN FLORA [VoLumE 9 
34. Gymnopus hygrophoroides (Peck) Murrill. 
Agaricus (Collybia) hygrophoroides Peck, Ann. Rep. N. Y. State Mus. 32:26. 1880. 
Collybia hygrophoroides Peck, Ann. Rep. N. Y. State Mus. 49: 51, 1897. 
Pileus subconic, becoming convex or nearly plane, scattered or sttbeespitose, 2.5-3.5 cm. 
broad; surface glabrous, hygrophanous, reddish or yellowish-red when moist, paler when dry: 
Jamellae broad, subdistant, rounded behind or deeply emarginate, eroded on the edges, whitish: 
stipe striate, whitish, equal, stuffed or hollow, 5-7.5 cm. long, 4-6 mm. thick. 
TYPE LocaLity: Knowersville, New York. 
Hasrrat: On decaying half-buried wood. 
DistriBution: New York and Michigan. 
ILLUSTRATIONS: Bull. N. Y. State Mus. 12: pl. 2, f. 23-26. 
35. Gymnopus acervatus (Fries) Murrill. 
Agaricus acervatus Fries, Syst. Myc. 1: 122. 1821. 
Collybia acervata P. Karst. Bidr. Finl. Nat. Folk. 32: 154. 1879. 
Collybia simillima Peck, Ann. Rep. N. Y. State Mus. 42: 115 (19). 1889. 
Pileus fleshy but thin, convex or nearly plane, obtuse, densely cespitose, 2.5-5 cm. broad; 
surface glabrous, hygrophanous, pale-tan-color or dingy-pinkish-red when moist, paler or 
whitish when dry, margin commonly striatulate when moist: lamellae narrow, close, adnexed 
or free, whitish or tinged with flesh-color: spores ellipsoid, 6 X 3-4 u: stipe slender, rigid, 
hollow, glabrous, reddish, reddish-brown, or brown, often whitish at the apex, especially when 
young, commonly with a white mycelioid tomentum at the base, 5-7.5 cm. long, about 2 mm. 
thick. 
TYPE LOCALITY: Europe. 
Hasitat: On decaying wood and on the ground among fallen leaves in woods. 
DISTRIBUTION: New York to North Carolina and west to Ohio and Wisconsin. 
ILLUSTRATIONS: Cooke, Brit. Fungi pl. 267 (205); Fries, Ic. Myc. 1: pl. 64, f. 2; Hard, Mushrooms 
f. 87. 
Exsiccati: Cavara, Fungi Longob. 217. 
36. Gymnopus dryophilus (Bull.) Murrill. 
?Agaricus melleus Schaeff. Fung. Bavar. 4: Ind. 20. 1774. 
Agaricus dryophilus Bull. Herb. Fr. pl. 434. 1789. 
Collybia dryophila Quél. Champ. Jura Vosg. 61. 1872. 
Pileus thin, convex or nearly plane, sometimes with the margin elevated, irregular, obtuse, 
commonly gregarious, 2.5-5 cm. broad; surface glabrous, varying in color, commonly some 
shade of bay-red or tan-color: context white, edible; lamellae narrow, crowded, adnexed or 
almost free, white or whitish, rarely yellowish: spores ellipsoid, 6-7.5 & 3-4 u: stipe glabrous, 
yellowish or rufescent, commonly similar in color to the pileus, equal or sometimes thickened 
at the base, cartilaginous, hollow, 2.5-5 cm. long, 2-4 mm. thick. 
TYPE LocaLity: France. 
HasitaT: In woods, groves, and open places. 
DistTRIBUTION: Greenland to Alabama and west to the Pacific coast, and in eastern Mexico; 
also in Europe. 
InLustrations: Bull. Herb. Fr. pl. 434; Bull. U. S. Dept. Agric. 175: pl. . . 
Sia ep gric. 175: pl. 15, f. 2; Sow, Engl. 
Exsiccati: Clements, Crypt. Form. Colo. 355, 356; Ellis & Ev. N. Am. Fungi 2801; Herpell, 
Prap. Hutpilze 39; Rab. Fungi Eur. 2101; Roum. Fungi Set. 5308; Sh i ‘ 
Te meer Ly ‘ungi Se Shear, N. Y. Fungi 104; Sydow, 
37. Gymnopus luxurians (Peck) Murrill. 
Collybia luxurians Peck, Bull. Torrey Club 24: 141. 1897. 
Collybidium luxurians Murrill, Mycologia 3: 169. 1911. 
Pileus convex to expanded, obtuse or umbonate, cespitose, 5-10 cm. broad; surface dry, 
faintly radiate-striate but not fibrillose, fulvous, with bay umbo, irregular with undulate 
margin: context somewhat tough but easily torn, the odor pleasant, the taste sweetish; 
lamellae sinuate, arcuate, rather close, narrow, crenulate, pallid, becoming discolored: spores 
oblong-ellipsoid, smooth, hyaline, 6-8 X 3-4 yu: stipe twisted, curved, slightly enlarged below, 
hollow, cartilaginous, pruinose, pallid above, tinged with fulvous below, 7-12 cm. long, 4-9 
mim. thick. 
