Ganoderma brownii (Murrill) Gilb.
no common name
Polyporaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Polyporaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Ganoderma brownii is somewhat similar to the common Ganoderma applanatum but with a slight yellowish case to the pore surface, thicker, darker flesh, and larger spores.
Chemical Reactions:
flesh black in 3% KOH
Odor:
indistinct (Desjardin)
Taste:
indistinct (Desjardin)
Microscopic:
spores 11-12 x 7-8 microns, broadly elliptic, inamyloid, brown in KOH, with a truncate apex and an apical germ pore, wall two-layered with interwall pillars; basidia 4-spored, about 23-11 microns, "collapsed and difficult to discern in type specimen, apparently broadly clavate with a sharply narrowed base"; cystidia absent; hyphal system trimitic: context generative hyphae 2.5-3.5 microns wide, obscure, colorless, thin-walled, with clamp connections, context skeletal hyphae 2-10 microns wide, pale brown in KOH, thick-walled, nonseptate, with occasional branching, context binding hyphae "rare to apparently absent in crushed mounts of context tissue", trama generative and skeletal hyphae similar, trama binding hyphae 2-5.5 microns wide, colorless to pale brown, "thick-walled, nonseptate, much branched", "often dendritically branched with tapering, pointed tips", (Gilbertson), 10-12 x 7-9 microns, broadly elliptic, inamyloid, "truncate at one end, thick-walled with internal wall ornamentation", cystidia absent; "hyphal system trimitic", generative hyphae with clamp connections, (Desjardin)
Spore Deposit:
brown (Gilbertson)
Notes:
found in CA (Gilbertson) and BC (Ginns(28), three collections)
Habitat and Range
SIMILAR SPECIES
Ganoderma applanatum has smaller spores and lacks the yellow cast to the pore surface (Gilbertson), G. applanatum has flesh that is lighter in color and thinner, (Arora). G. applanatum generally has flatter, fan-shaped fruitbodies, has smaller spores (7-8(9) x 4.5-6 microns), and is not restricted to hardwoods, (Siegel(2)). See also SIMILAR section of Ganoderma oregonense.Habitat
perennial, on hardwoods, causing white rot of living and dead hardwoods, (Gilbertson), single or in small groups "on living or standing dead hardwood trees, stumps, or logs"; in California common, fruiting throughout the year, primarily on bay laurel, (Desjardin), collections in BC on live Aesculus hippocastaneum (Horsechestnut), live Prunus cerasifera var. pissardii (a cultivar of Cherry Plum), and an unidentified log, (Ginns)
Status Information
Synonyms
Synonyms and Alternate Names:
Cyathus griseus Pers.
Cyathus hirsutus (Schaeff.) ex Quel.
Elfvingia brownii Murrill