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 Pseudohydnum gelatinosum
SynonymsAuricula totarae
Tremellodon gelatinosum
Hydnum gelatinosum
BiostatusPresent in region - Indigenous. Non endemic
Images (click to enlarge)
Caption: Pseudohydnum gelatinosum: I, basidia; m, spores. (All x 1000
approx.) | 
Owner: Herb. PDD | 
Owner: Herb. PDD | 
Caption: REB 780, Tongariro NP, 3/2/1989
Owner: Ross Beever | 
Caption: Watercolour
Owner: G.M. Taylor |
Article: McNabb, R.F.R. (1964). New Zealand Tremellales - I. New Zealand Journal of Botany 2(4): 403-414 (http://www.rsnz.org/publish/abstracts.php).
Description: Fructifications gelatinous, translucent,
creamy white when fresh, becoming light brown with age, abhymenial surface drying
dull black, hymenium mustard. Short stipitate with a dimidiate or petaloid pileus,
entire basidiocarp 2-7 cm broad, to 7 cm high. Superior surface sterile, minutely
papillate, often wrinkled. Internal hyphae hyaline, thin-walled, to 9 µm diam.,
clamp connections present. Hymenium inferior, borne on numerous conical spines
up to 4 mm long, composed of basidia and dikaryophyses; probasidia subglobose,
11-15.5 x 9-12 µm, becoming 2- or 4-celled by longitudinal septation; sterigmata
to7.5 µm long. Basidiospores globose to subglobose, hyaline, smooth, apiculate,
5.5-8.3 µm diam. Germination not observed.
Habitat: Gymnosperm, rarely angiosperm wood.
Notes: The isotype of Auricula totarae is
in all respects typical of Pseudohydnum gelatinosum. Lloyd placed the
species with Phlebia reflexa in a new and invalid genus, which he called Auricula,
although he commented that they were not related. Lowy (1952, p. 689) examined
the holotype and stated that it was an Exidia, but erroneously listed
the species under Auricular id.
Pseudohydnum gelatinosum is readily recognisable by the translucent, creamy white fructifications
with spines on the inferior surface. The species was recorded from New Zealand
as Tremellodon gelatinosus by Cooke (1879, p. 56).
Article: Cooke, M.C. (1879). New Zealand fungi. Grevillea 8(46): 54-68.
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