Small agaric, growing on litter, wood or fallen branches, with a white or cream spore print. All parts of fruit-body white. Pileus not viscid, translucent-striate. Lamellae not intervenose. Stipe lateral and short, or absent. Partial veil remnants absent. Spores globose to subglobose, hyaline, non-amyloid, smooth; germ pore absent. Cheilocystidia present or absent. Lamellar trama regular, interwoven or bilateral. Pileipellis a trichoderm, rarely a cutis. Clamp connections present.

Other white, stipe-less agarics on wood are much larger, with the exception of some species of Campanella, which have lamellae that are usually distinctly intervenose and nodulose pileipellis hyphae. Some Crepidotus and Entoloma (Claudopus) are whitish and can have very pale lamellae when young, but the spore print is brown or pink. Spores are often warty in the former, and always markedly angular in the latter.

Cheimonophyllum Singer, Sydowia 9: 417 (1955).

One species: Cheimonophyllum candidissimum.

Cheimonophyllum candidissimum (Berk. & M.A.Curtis) Singer, Sydowia 9: 418 (1955).

Vic. and Tas. (and possibly also N.S.W.).

In native forests, usually wetter forests such as cool-temperate rainforest.

On wood or fallen branches.

Saprotrophic.

Fuhrer, B. (2005), A Field Guide to Australian Fungi. Bloomings Books, Hawthorn. [Description and Illustration of C. candidissimum]

McCann, I.R. (2003), Australian Fungi Illustrated. Macdown Productions, Vermont. [Illustration of C. candidissimum]

Pegler, D.N. (1983c), Agaric flora of the Lesser Antilles, Kew Bull., Addit. Ser. 9: 1–668. [Description, B&W Illustration and Microcharacters of C. candidissimum from the Lesser Antilles]

Segedin, B.P. (1994), Studies in the Agaricales of New Zealand: new records and new species of the genera Cheimonophyllum, Mniopetalum, and Anthracophyllum (Tricholomataceae, Collybieae), New Zealand J. Bot. 32: 61–72. [Description, B&W Illustration and Microcharacters of C. candidissimum from New Zealand]

Singer, R. (1969), Mycoflora australis, Beih. Nova Hedwigia 29: 1–405. [Description of C. candidissimum from South America]