Name: Trichaptum abietinum (Dicks.) Ryvarden
Most Confident Observations:
Copyright © 2011 Tim Sage (NMNR)
Copyright © 2009 Micah Courteau (waynegrompsky)
Copyright © 2011 Tim Sage (NMNR)
Copyright © 2008 Daniel B. Wheeler (Tuberale)
Version: 6
Previous Version 

First person to use this name on MO: Nathan Wilson
Editors: Darvin DeShazer, Erlon, Chaelthomas


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Polyporales

Family: Polyporaceae

Genus: Trichaptum

Notes on Taxonomy: [Edit]

Ecology: Saprobic on the dead or dying sapwood of conifers, especially firs; growing in overlapping clusters on logs and stumps; spring through fall; widely distributed in North America. The illustrated and described collections are from Colorado.

Cap: Sometimes absent, or present as merely a folded-over edge, but usually present and semicircular to fan-shaped; 1–4 cm wide; up to 3 cm deep; thin; dry; fuzzy to hairy; with concentric zones of texture and color; shades of gray, with a purplish marginal zone when fresh; often hosting algae and becoming green.

Pore Surface: Purple when fresh, especially near the margin; fading to lilac or brownish with age; with 2–3 angular pores per mm; often tooth-like with age or in capless areas; not bruising.

Stem: Absent.

Flesh: Whitish; tough and leathery.

Chemical Reactions: KOH negative on flesh.

Spore Print: Not verified by me; reported as white.

Microscopic Features: Spores 6–8 x 2–3 µm; smooth; cylindric to slightly allantoid; hyaline in KOH; inamyloid. Cystidia abundant; 20–30 x 5–10 µm; clavate to obutriform; smooth overall but developing distinctive crystalized apices; walls 0.5 µm thick; hyaline in KOH. Hyphal system dimitic; skeletal hyphae 4-9 µ wide, thick-walled, unclamped; generative hyphae 2.5–5 µm wide, thin-walled, clamped.

Descriptions: [Create]


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Created: 2007-01-09 21:04:01 PST (-0800) by Nathan Wilson (nathan)
Last modified: 2018-05-17 06:45:41 PDT (-0700) by Chaelthomas (Chaelthomas)
Viewed: 749 times, last viewed: 2018-06-21 01:46:53 PDT (-0700)
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