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Go to the NZFungi website for more indepth information on Collybia nummularia. Collybia nummularia

Synonyms

Agaricus nummularius

Biostatus

Present in region - Origin uncertain

Images (click to enlarge)

 

Caption: 224-Pluteus sp. [Collybia nummularia]: a. spores.
 

Article: Massee, G.E. (1899) [1898]. The fungus flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 282–349 Wellington:.
Description: Pileus dry, flesh thin, soon almost plane and slightly depressed round the small umbo, even, glabrous, pallid or whitish, often variegated with red or yellow stains, 2-3.5 cm. across; gills free, broadest behind, rather distant, white ; spores 4-5 x 3 µ, stem 3-6 cm. long, about 2 mm. thick, often slightly thinner downwards, pallid, stuffed, then hollow.
Habitat: Among fallen leaves, in woods, &c.
Distribution: Dannevirke, New Zealand. Australia, Europe.
Notes: Distinguished by being altogether white or pallid, although the pileus is usually more or less stained with red or yellow, and by the pale pileus being depressed round the small obtuse umbo.

Article: Horak, E. (1971). A contribution towards the revision of the Agaricales (Fungi) from New Zealand. New Zealand Journal of Botany 9(3): 403-462 (http://www.rsnz.org/publish/abstracts.php).
Notes: Collybia nummularia (Fries) (8, 16) Fig. 19 = Pluteus sp.
The fragments of this collection (COLENSO b 741) are in poor condition but sufficient to confirm the identification. The spores are subglobose, smooth, pinkish, 7-8 X 5.5-7 µ.