|
 Pleurotus scabriusculus
SynonymsAgaricus scabriusculus
BiostatusPresent in region - Origin uncertain
Images (click to enlarge)
Caption: 290-"Pleurotus scabriusculus": a. spores (Scytinotus sp.: coll.
(COLENSO b 973); b. spores (Phialocybe sp.: COLENSO 749). |
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: Entirely white. Pileus thin, sessile, horizontal, fan-shaped ,or semicircular, margin usually
more or less lobed, narrowed behind into a very short stem-like point of attachment which is
covered with spongy down, surface of pileus (more especially behind) rough with scattered
minutely projecting points, not striate, 2-5 cm. broad and about the same long (from base to
margin) ; gills rather narrow and crowded, radiating from the point of attachment; spores
elliptical, 6-7 x 3-3.5 µ.
Habitat: On logs.
Distribution: Dannevirke, New Zealand. Australia, Admiralty Islands.
Notes: Often more or less imbricated. I find the spores to be elliptical, 6-7 x 3-3.5 µ, in the type
specimen from Australia and in Colenso's New Zealand specimens. Distinguished among the
entirely white species by the scabrid or minutely rough surface of the pileus.
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: According to Pegler (1965) the type of this species seems to be a well characterised species of the genus Pleurotus. The New Zealand material, however, is totally different. One collection (COLENSO b 973) represents a species of Scytinotus Karsten (see fig. 290 a), with allantoid spores, measuring about 6-7 X 2.5-3 µ. In the other collection (COLENSO 749) we found elliptical spores with a brownish, minutely warted membrane, 7-9 X 3-3.5 µ (see fig. 290 b), it being a Phialocybe Karsten.
|