(428 ) 
This is equivalent to Collybca § Tephrophane, of the Sylloge. 
The distinguishing features are the hygrophanous pileus and 
cinereous lamellae. 
73. COLLYBIDIUM gen. nov. 
Putrescent, solitary or cespitose: pileus convex, not hy- 
grophanous, margin at first incurved: lamellae adnate or ad- 
nexed, white or bright-tinted: spores white: veil none: stipe 
central, slender, tubular, cortex cartilaginous, not striate. 
Type, Agaricus velutipes (Curt.) Fries, Syst. Myc. 1: 119. 
1821. (Syll. 5: 212, as Collybia velutipes.) 
This as here understood is a large genus, including Co/- 
lybia § Vestipides and § Levipides, of the Sylloge. The char- 
acters are mostly negative. 
74. GYMNOPUS Roussel, Fl. Calvados ed. 2. 62. 1806. 
Collyéda (Fries) Quél. Champ. Jura Vosg. 56 (metonym). 
1872. Type, C. radicata (Relh.) Quél. (Syll. 5: 200.) 
Lyophylium Karst. Acta Soc. Faun. Fl. Fenn. 2: 3 (met- 
onym). 1881. Type, Collybia leucophaeata, Karst. (Syll. 
5: 205.) 
Putrescent, solitary or gregarious: pileus convex, not hy- 
grophanous, the margin at first incurved: lamellae adnate or 
adnexed, white or tinted: spores white: veil none: stipe 
central, rather stout, tubular or fibrous, sulcate or fibrillose- 
striate. 
Type, Collybia longipes (Bull.). (Syll. 5: 202.) 
This is Collybia § Stritpedes, of the Sylloge. It is distin- 
guished from the previous genus by larger size and stouter, 
striate stipe. 
75. PILOSACE (Fries) Pat. Hymén. Eur. 122. 1887. 
Putrescent, solitary or gregarious: pileus fleshy, convex 
or expanded, discrete from the stipe: lamellae free: spores 
purplish-brown: veil none: stipe central, stout, fleshy, with- 
out a cortex. 
Type, P. algeriensis (Fries). (Syll. 5: 1011.) 
Taken in the same sense as in the Syloge. 
