Name: Trichaptum biforme (Fr.) Ryvarden
Most Confident Observations:
Copyright © 2009 Paul Derbyshire (Twizzler)
Copyright © 2008 Paul Derbyshire (Twizzler)
Copyright © 2010 Greg Ricciardi (gtr1017)
Copyright © 2009 MOFunGuy (jrapp)
Version: 5
Previous Version 

First person to use this name on MO: Johannes Harnisch
Editors: Nathan Wilson, Joseph D. Cohen, Chaelthomas


Rank: Species

Status: Accepted

Name: Trichaptum biforme

[#324867] Index Fungorum

[#324867] MycoBank

GSD Species Synonymy

Author: (Fr.) Ryvarden

Citation: Norw. Jl Bot. 19(3-4): 237 (1972)

Deprecated Synonyms: Bjerkandera biformis (Fr.) P. Karst., Coriolus biformis (Fr.) Pat., Coriolus elongatus (Berk.) Pat., Coriolus friesii (Klotzsch) Pat., Coriolus laceratus (Berk.) Pat., Coriolus pargamenus (Fr.) G. Cunn., Coriolus prolificans (Fr.) Murrill, Coriolus sartwellii (Berk. & M.A. Curtis) Murrill, Coriolus sublimitatus Murrill, Hirschioporus elongatus (Berk.) Teng, Hirschioporus friesii (Klotzsch) D.A. Reid, Hirschioporus pargamenus (Fr.) Bondartsev & Singer, Irpex elongatus (Berk.) Lloyd, Microporellus friesii (Klotzsch) Ryvarden, Microporus biformis (Fr.) Kuntze, Microporus candicans (Lév.) Kuntze, Microporus elongatus (Berk.) Kuntze, Microporus evolvens (Berk.) Kuntze, Microporus friesii (Klotzsch) Kuntze, Microporus inquinatus (Lév.) Kuntze, Microporus laceratus (Berk.) Kuntze, Microporus pargamenus (Fr.) Kuntze, Microporus pergamenus (Fr.) Kuntze, Microporus prolificans (Fr.) Kuntze, Microporus sartwellii (Berk. & M.A. Curtis) Kuntze, Polyporus biformis Fr., Polyporus candicans Lév., Polyporus ehretiae Bres., Polyporus elongatus Berk., Polyporus evolvens Berk., Polyporus friesii Klotzsch, Polyporus inquinatus Lév., Polyporus laceratus Berk., Polyporus menandianus Mont., Polyporus pargamenus Fr., Polyporus pargamenus var. elongatus (Berk.) G. Cunn., Polyporus pergamenus Fr., Polyporus prolificans Fr., Polyporus pseudopargamenus Thüm., Polyporus sartwellii Berk. & M.A. Curtis, Polystictus biformis (Fr.) Fr., Polystictus candicans (Lév.) Cooke, Polystictus elongatus (Berk.) Fr., Polystictus friesii (Klotzsch) Cooke, Polystictus inquinatus (Lév.) Cooke, Polystictus pargamenus (Fr.) Fr., Polystictus pargamenus subsp. pseudopargamenus (Thüm.) Sacc., Polystictus pergamenus (Fr.) Cooke, Polystictus prolificans (Fr.) Fr., Polystictus sartwellii (Berk. & M.A. Curtis) Cooke, Polystictus sublimitatus (Murrill) Murrill, Spongipellis laceratus (Berk.) Pat., Trametes biformis (Fr.) Pilát, Trametes friesii (Klotzsch) G. Cunn., Trametes pargamena (Fr.) Kotl. & Pouzar, Trametes pergamena (Fr.) Kotl. & Pouzar, Trichaptum pargamenum (Fr.) G. Cunn.

Misspellings: Trichaptum biformis (Fr.), Trichaptum Biformis, Trichchaptum biforme


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Hymenochaetales

Family: Hymenochaetaceae

Genus: Trichaptum

Show Subtaxa

Notes on Taxonomy: [Edit]

Ecology: Saprobic; growing in overlapping clusters on hardwood logs and stumps; late spring, summer and fall; found in all 50 of the United States and all the Canadian provinces; in eastern North America it is one of the most commonly encountered fungi. Trichaptum biforme is a voracious decomposer of dead wood. It causes a straw colored sapwood rot in standing trees.

Cap: Up to 6 cm across and 3 mm thick; more or less semicircular, irregularly bracket-shaped, or kidney-shaped; flattened-convex; hairy, finely hairy or fairly smooth; with zones of whitish to grayish white colors; the margin sometimes pale lilac.

Pore Surface: Purple to lilac, with the strongest shades near the margin; fading to buff or brownish in age; with 3-5 angular pores per mm; usually eroding and developing spines or teeth with maturity (sometimes appearing more like a toothed mushroom than a polypore); not bruising.

Stem: Absent.

Flesh: Whitish; tough and leathery.

Chemical Reactions: KOH negative to pale yellowish on flesh and cap surface.

Spore Print: White.

Microscopic Features: Spores 6-8 × 2-2.5 µ; smooth; cylindric to slightly allantoid; hyaline in KOH; inamyloid. Cystidia abundant; up to 35 × 5 µ; more or less fusoid; apically encrusted. Hyphal system dimitic.

REFERENCES: (Fries, 1833) Ryvarden, 1972. (Saccardo, 1905; Overholts, 1953; Smith, Smith & Weber, 1981; Gilbertson & Ryvarden, 1987; Phillips, 1991/2005; Lincoff, 1992; Metzler & Metzler, 1992; Evenson, 1997; Barron, 1999; Roody, 2003; McNeil, 2006; Miller & Miller, 2006; Binion et al., 2008; Kuo & Methven, 2010.) Herb. Kuo 07170404, 06090703.

Descriptions: [Create]


Add Comment
By: amanita (Saddie)
2016-04-03 04:30:01 PDT (-0700)

but are there any known medicinal properties?
Due to the lack of many look a like poisonous Polypores, i often wonder if there has just been NO STUDY of them as such.

By: Damien Moody (audiodef)
2011-12-02 09:25:57 PST (-0800)
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