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 Tremella obscura
SynonymsTremella mycophaga var. obscura
BiostatusPresent in region - Origin uncertain
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: Growing within fructifications of Heterotextus.
Hyphae thin-walled with numerous, irregularly shaped haustorial branches, clamp
connections present. Probasidia subglobose to pyriform, with basal clamp connections,
10-15.5 x 8-12 µm, becoming 2- or 4-celled by vertical or oblique septation.
Basidiospores subglobose to obovate, hyaline, apiculate, 6-9.5 x 4-6.5 µm. Germination
by repetition. Conidia present, elliptical, thin-walled, hyaline, smooth, 4-8
x 2-4 µm. Conidiophores phialide-like, with basal clamp connections, occasionally
occurring on the same hyphae as the basidia.
Habitat: Parasitic within fructifications of dacrymycetaceous
fungi.
Notes: Tremella obscura produces no fructifications of its own and occurs as an internal parasite within
basidiocarps of dacrymycetaceous fungi. The form of the host remains unchanged
and there are no external signs of parasitism
The species appears to be confined to dacrymycetaceous
hosts. It has been reported from the United States on Dacrymyces spp.
and Dacryomitra. stipitata, and from Denmark on Dacrymyces deliquescens.
The present collection on Heterotextus extends the host range to a third
genus of the family.
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