[*] Gills broad, rather distant.

[**] Gills very narrow, closely crowded.

Lævipedes (even-stemmed). Page [120].

Stem thin, equal, hollow, naked, smooth—except the base—apparently not striate, but some species are minutely striate under a lens.

[*] Gills broad, lax, usually more or less distant.

[**] Gills narrow, crowded.

Series B. Gills Becoming Gray. Hygrophanous.

Tephrophanæ. Page —-.

Color brownish becoming gray. Allied to the last section of Tricholoma and Clitocybe, but distinguished from them by the cartilaginous stem.

Some are strong scented. None known to be edible.