The North American Species of Crepidotus

48. Crepidotus aquosus Murr., Mycologia 5: 30. 1913.

Pileus 1-2.5 cm broad, sessile, watery-brown, resupinate, reniform, expanded at maturity, glabrous or subglabrous, margin deeply sulcate. Context thin, soft, and watery.

Lamellae subcrowded, rather broad, dark-ochraceous or subfulvous.

Spores 4.5-7 µ in diameter, globose, faintly punctate, brown in 2% KOH. Pleurocystidia none; cheilocystidia none. Pileus trama interwoven. Cuticle of repent hyphae with a few more or less erect, scattered, short, colorless hyphae. Clamp connections present on the epicuticular hyphae and on the tomentum at the base of the pileus.

Habit, Habitat, and Distribution: On log, Jamaica, October.

Material Studied: JAMAICA: Earle, type (NY), from Rose Hill, Oct. 30, 1902.

Observations: This differs from cuneiformis in the organization of the cuticle, in its lack of cheilocystidia, and in its deeply sulcate margin. The basidia were unsuitable for study.