Pileus rigid, hard, somewhat cartilaginous when fleshy, very fragile when thin, cuticle rigid, granulated or broken up when dry into smooth scales, not torn into fibrils. Young specimens occur which are fibrillose from the veil, not from laceration of the cuticle.
[*] Gills white or pallid, not becoming spotted with red or gray.
[**] Gills becoming reddish, grayish or spotted.
Sericella (sericeus, silky). Page [74].
Pileus first slightly silky, soon becoming smooth, very dry, neither moist, viscid, water-soaked, nor distinctly scaly; rather thin, opaque, absorbing moisture, but is the same color as the gills. Stem fibrous, by which the smaller species resembling Collybia may be distinguished.
[*] Gills broad, rather thick, somewhat distant.
**:sericella2 Gills narrow, thin, crowded.
B. Pileus Even, Smooth, Not Downy Nor Scaly, Not Viscid.
In rainy weather moist; when very young pruinose (but rarely conspicuously) from the universal veil. Flesh soft and spongy or very thin when it is water-soaked.
Guttata (gutta, a drop). Page [76].