Phellinus betulinus (Murrill) Parmasto
No common name
Hymenochaetaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
No common name
Hymenochaetaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
This is a member of the Phellinus igniarius complex according to Zhou, L.-W.(1). Features include 1) flat growth on wood of Betula occidentalis with the dull reddish brown pore surface exposed, 2) a narrow margin that is yellowish brown and tomentose, 3) woody consistency, 4) tight adherence to the wood, 5) round pores, 6-9 per mm with thick edges, 6) indistinctly stratified tubes, and 7) microscopic characters including spores 3.9-4.5 x 2.8-3.6 microns, a dimitic hyphal system, and setae. The description is derived from Ginns(28).
Microscopic:
spores 3.9-4.5 x 2.8-3.6 microns, oval, thin-walled; hyphal system dimitic: generative hyphae 2.0-3.5 microns wide, thin-walled, walls "pale yellow to hyaline", skeletal hyphae 2.5-5.0 microns wide; setae 13.2-18.6 x 5.3-6.8 microns, (Ginns)
Notes:
In western North America, Phellinus betulinus is known from BC, WA, ID, and MT (Ginns(28) who notes that the range is uncertain because collections have been mislabeled as Phellinus laevigatus).
Habitat and Range
SIMILAR SPECIES
Phellinus prunicola has larger spores (according to Parmasto concept) and grows on Prunus spp. (Ginns(28)). Phellinus laevigatus prefers Betula but also grows on other hardwoods: it has smaller pores (8-10 per mm), smaller spores (3-4 x 2.5-3 microns), and larger setae (17-30 x 6-9 microns in diameter), (Ginns(28) who notes that some collections are difficult to distinguish with confidence).Habitat
on Betula occidentalis (Water Birch)
Status Information
Synonyms
Synonyms and Alternate Names:
Thanatephorus fusisporus (J. Schroet.) Hauerslev & P.
Uthatobasidium fusisporum (J. Schroet.) Donk