In basidiocarps of (1) Heterotextus sp., Stewan Island, T. Kirk no. 375.

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.

Parasitic within fructifications of dacrymycetaceous fungi.

Olive, T. Elisha Mitchell sci. Soc. 62: pl. 13, f. 1-15. 1946. (as Tremella sp.); Olive, Mycologia 38: 539, f. 12-25. 1946.

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.

TYPE LOCALITY:
Georgia, U.S.A.