Stropharia subgenus Stercophila
Order: Agaricales
Family: Strophariaceae
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Diagnostic characters
Small to medium agaric, growing on dung, rarely on the ground, with a purple-brown or black spore print. Pileus pale, yellow, brown or green, viscid or glutinous. Lamellae adnate. Stipe central. Partial veil remnants a ring zone or absent. Spores brown or greyish, smooth; germ pore broad. Cheilocystidia present. Lamellar trama regular. Pileipellis a cutis. Clamp connections present or absent.
Similar genera
Other species of Stropharia do not have such a distinctively glutinous stipe, and they do not grow on dung. Other non-deliquescent, dung-inhabiting agarics with a dark spore print include Copelandia (with metuloid cystidia and the pileipellis an epithelium), Panaeolus (with pileipellis a hymeniderm or epithelium, and chrysocystidia present or absent) and Psilocybe (chrysocystidia lacking),
Citation
Stropharia subgenus Stercophila (Romagn. ex Noordel.) [not yet combined in Stropharia, based on Psilocybe subgenus Stercophila Romagn. ex Noordeloos, Persoonia 16: 27 (1995)].
Australian species
Three species: Stropharia semiglobata, S. subuda and Stropharia sp. (= Psilocybe parvula).
Australian distribution
W.A., S.A., Qld, N.S.W., Vic. and Tas. (and probably also N.T.).
Habitat
In native forests, and in pine plantations.
Substrate
On dung of native and exotic animals.
Trophic status
Saprotrophic.
References
Breitenbach, J. & Kränzlin, F. (eds) (1995), Fungi of Switzerland. Volume 4. Agarics 2nd part. Edition Mykologia, Lucerne. [Description, Microcharacters and Illustration of S. semiglobata from Europe]

Chang, Y.S., Gates, G.M. & Ratkowsky, D.A. (2006), Some new species of the Strophariaceae (Agaricales) in Tasmania, Australas. Mycol. 24: 53–68. [B&W Illustration, Description and Microcharacters of Psilocybe parvula, noting that it is close to Stropharia semiglobata (and thus belongs in Stropharia subgenus Stercophila)]

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

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

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 S. semiglobata and S. subuda, and Illustration of the first species]

McCann, I.R. (2003), Australian Fungi Illustrated. Macdown Productions, Vermont. [Illustration of S. semiglobata and another unnamed dung-inhabiting species]

Young, A.M. (2005b), A Field Guide to the Fungi of Australia. University of New South Wales Press, Sydney. [Description and B&W Illustration of S. semiglobata]