Clitocybe semiocculta
Order: Agaricales
Family: Tricholomataceae
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Diagnostic characters
Small to medium (occasionally large) agaric, growing on wood or litter, with a white spore print. Fruit-body white to pale. Pileus not viscid. Lamellae adnate or subdecurrent, crowded. Stipe excentric or lateral, rarely central. Partial veil remnants absent. Spores hyaline, non-amyloid, smooth; germ pore absent. Cheilocystidia absent. Lamellar trama arrangement not known. Pileipellis a cutis. Clamp connections present.
Similar genera
This species is distinguished from other Clitocybe by its occurrence on wood and the excentric stipe. Pale fruit bodies of Panellus longinquus are similar in form but have a viscid pileus. The crowded lamellae distinguish Clitocybe semiocculta from Campanella (in which the lamellae are usually widely spaced and intervenose). In wood-inhabiting Omphalotus and Pleurotus, the pileus is often strongly coloured and the lamellae distinctly decurrent (Omphalotus is also luminescent). The pileus of Conchomyces is usually grey or brownish, but when pale, it can be distinguished by the spinose spores.
Australian species
One species: Clitocybe semiocculta. This is keyed out separately from other species of Clitocybe because of its occurance on wood; all other Australian Clitocybe grow on the ground or among litter. It also differs from most other Clitocybe by usually having an excentric stipe.
Citation of species
Clitocybe semiocculta Cleland, Trans. & Proc. Roy. Soc. S. Australia 51: 300 (1927).
Australian distribution
W.A., S.A., N.S.W., Vic. and Tas. (and possibly also Qld).
Habitat
In native forests.
Substrate
On wood or bark, often on the underside of detached sheets of bark.
Trophic status
Saprotrophic.
References
Bougher, N.L. (2009a), Fungi of the Perth region and beyond: a self-managed field book, Western Australian Naturalists' Club (Inc.), Perth. [Description and Illustration of C. semiocculta]

Cole, F.M., Fuhrer, B.A. & Holland, A.A. (1984), A Field Guide to the Common Genera of Gilled Fungi in Australia, revised edn. Inkata Press, Melbourne. [Illustration of C. semiocculta]

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

Fuhrer, B. & Robinson, R. (1992), Rainforest Fungi of Tasmania and South-east Australia. CSIRO Press, East Melbourne. [Illustration of C. semiocculta]

Grgurinovic, C.A. (1997a), Larger Fungi of South Australia. The Botanic Gardens of Adelaide and State Herbarium and The Flora and Fauna of South Australia Handbooks Committee, Adelaide. [Description and Microcharacters of C. semiocculta]

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