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Go to the NZFungi website for more indepth information on Pholiota aurivella. Pholiota aurivella

Synonyms

Agaricus aurivellus
Agaricus adiposus
Pholiota adiposa

Biostatus

Present in region - Indigenous. Non endemic

Images (click to enlarge)

 

Caption: 3-Pholiota aurivella [Pholiota adiposa sensu Massee]: a. spores; b. chrysocystidia.
Caption: fruitbody
Owner: J.A. Cooper
Caption: fruitbody
Owner: J.A. Cooper
Owner: J.A. Cooper

Owner: G.L. Barron
Owner: G.L. Barron
 

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 convex, obtuse, then expanding, glutinous, yellow,. with superficial concentrically arranged seceding darker squarrose scales, 5-12 cm. across; flesh whitish, compact at the disc; gills adnate, 6-8 mm. broad, yellow, then rusty-orange; spores elliptical, rusty-orange, 7 x 3 µ; stem 7-12 cm. long, up to 2 cm. thick, base somewhat bulbous, remainder more orless equal throughout, yellow, ornamented with concentrically arranged rusty-orange evanescent scales up to the superior, floccose, radiating ring, stuffed.
Habitat: On decaying parts of trees.
Distribution: Cape Turnagain, Northern Island, New Zealand. Europe, United States.
Notes: A very showy fungus when.well grown. Usually caespitose, and forming large clusters. Distinguished by the glutinous. pileus and stem, both of which are at first ornamented with rusty-orange or ferruginous squarrose or spreading scales. The scales appear eventually to deliquesce in the gluten, which is washed away in rainy weather, leaving the .pileus and stem naked. In dry weather the pileus is shiny, due to the dried gluten. Poisonous.

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: Fig. 1 Microscopical characteristics of the preserved material (COLENSO 368) agree closely with those of Pholiota aurivella (Fr.) Kummer. I am inclined to regard this fungus as an adventitious species.