Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Tremellales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Tremella fuscosuccinea

Tremella fuscosuccinea C. J. Chen, Bibliotheca Mycologica 174: 1-225. 1998.

 Description: Basidiocarps foliose, lobes caespitose, light brown to orange brown (amber to umber), ca. 10 cm ø, dry becoming dark brown. Basidia mostly broadly ellipsoid to oval, rarely subglobose or elongate, 11-15 × 8-10.5 μm [Q=(1.10-)1.22-1.67], longitudinally or obliquely septate; mostly 4-, rarely 2-spored, sterigmata mostly 35-50 μm in length, 1.5-2.5 μm ø, apically swollen up to 4-5 μm ø, sometimes sterigmata apically forked; often young basidia produced from clamps of mature basidia. Spores ellipsoid to oval, 7-9 × 5-7 μm [Q=1.29-1.55], smooth, hyaline, germinating by budding or repetition, sometimes producing sterigma-like hyphae. Conidia absent. Vesicles absent. Swollen cells absent. Hyphae hyaline, thin- to slightly thick-walled, gelatinous, 2-5 μm ø, clamped, anastomoses abundant in the subhymenium. Haustoria rarely in subhymenium and inner basidiocarp, but abundant at basal parts close to the substrate, haustoria short, rarely branched, mostly 4-5 × 3-4 μm.

Taiwan, Taichung county, Tasheshan Forest, 2200 m, leg. C.-J. Chen, CCJ 1136, on decayed wood.

 Habitat: null



Bandoni, RJ. 1957; Chen, CJ. 1998; Neuhoff, W. 1931.


C. J. Chen

 Note: Macroscopically Tremella fuscosuccinea resembles Auricularia fuscosuccinea (Montagne) Farlow, nevertheless it is a typical Tremella microscopically. It differs from T. foliacea sensu lato and T. frondosa sensu Bandoni (1957) in color, shape, and texture. Also T. fuscosuccinea differs in microscopical characters, i.e. sterigmata conspicuously swollen apically and basidiospores definitely smaller. Tremella succinea Persoon apparently is a rather pale-colored form and might be close to T. fuscosuccinea. Neuhoff (1931) considered T. succinea to be the form typical from gymnosperm wood, the substrate of T. foliacea originally described by Persoon, and he emphasized the conception of T. foliacea var. succinea. It is out of question that a small environmentally difference amounts to a satisfactory differential characterization. Thus, the name of T. succinea might be a inscrutable species unless the type can be restudied. Tremella fuscosuccinea differs from T. foliacea sensu lato also evidently in its basidiocarps, basidia and basidiospores, and hymenial and subhymenial structure. It is definitely distinguished from T. vasifera microscopically, although they both have very large basidiocarps and similar texture in nature.