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 Entoloma rancidulum
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Caption: Entoloma rancidulum
Hk. (holotype): a. carpophores. b. spores. c. cuticle. | 
Caption: Dried type specimen
Owner: Herb PDD |
Article: Horak, E. (1973). Fungi Agaricini Novazelandiae I-V. Beihefte zur Nova Hedwigia 43: 200 p.
Description: Pileus
5-12 mm diam., hemispherical to convex or expanded, umbilicate or at least depressed
at the centre, whitish, beige or sometimes light brown, dry, radially fibrillose,
striate near the margin, hygrophanous. Lamellae (L 4-8, l 1-(3)), sinuate to
subdecurrent, grey or beige when young, becoming beigepink, gill edge concolorous.
Stipe 10-20 x 1-1.5 mm, cylindrical or attenuated downwards, concolorous with
pileus, with white weft at the base, dry, fibrillose, hollow, often cespitose.
Context whitish. Odor and taste strongly farinaceous or rancid.
Spores
10-12.5 x 8-10 µm, subglobose with 5-6 blunt angles, prominent apiculus. Basidia
45-80 x 12 µm, 4-spored (35-50 x 10-11 µm in 2-spored basidia). Cheilo- and
pleurocystidia none. Caulocystidia 30-50 x 4-7 µm, fusoid-subcapitate, hyaline.
Cuticle a cutis of cylindrical hyphae (5-16 µm diam.), terminal cells sometimes
fusoid with rounded neck, membrane thin-walled and not gelatinized, encrusted
by brown pigment. Clamp connections present.
Habitat: On soil among mosses and litter in
and along the margin of forests (Nothofagus spp., Leptospermum
spp., Podocarpus ferrugineus, Weinmannia racemosa). New Zealand
Notes: E. rancidulum shows some
affinities with E. floridanum (Murrill) Hesler and E. subplanum
(peck) Hesler. The carpophores of the New Zealand species, however,are in general
smaller and the spores also differ considerably in shape from those of the two
North American species.
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