Chlorociboria aeruginascens (Nyl.) Kanouse ex C.S. Ramamurthi, Korf & L.R. Batra
green stain
Chlorociboriaceae

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

Photograph

© Jim Riley     (Photo ID #73181)

Map

E-Flora BC Static Map

Distribution of Chlorociboria aeruginascens
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Species Information

Summary:
Features include a blue-green fruitbody on wood with off-center (infrequently central) stem and microscopic characters including smooth tomentum hyphae. (Its close relative C. aeruginosa has central to slightly off-center stem, larger spores and granularly roughened tomentum hyphae.) Blue-green staining of wood is more commonly seen than the fruitbodies.
Odor:
none (Miller)
Taste:
unknown (Miller)
Microscopic:
spores 5-7(10) x 1.0-1.5(2.4) microns (average 6 x 1.5 microns), fusiform to elliptic-fusiform, smooth, colorless or with light green contents with bipolar droplets, unicellular, irregularly biseriate; asci 8-spored, (40)50-65(75) x 3-4(5) microns; paraphyses scarcely extending beyond asci, (1)1.5(2) microns wide, filiform [thread-like], colorless, septate, blunt at tip, branching near base; ectal excipulum gives rise "to few to numerous, coiled or sometimes straight, smooth-walled tomentum hyphae", tomentum hyphae 1.0-1.5(2) microns wide, (Dixon), spores 5-8 x 1-2 microns (Trudell)
Notes:
Collections were examined from BC, WA, OR, ID, and also ON, PQ, AK, CA, CO, GA, IA, ME, MA, MI, MN, NC, NH, NJ, NY, OH, TN, VT, WI, Cuba, Greenland, Venezuela, Bulgaria, Czechoslovakia, Denmark, Finland, Netherlands, Sweden, Ukraine, United Kingdom, Armenia, China, Georgia, India, Japan, Philippines, and Russia, (Dixon). B. Callan has determined collections from BC of both Chlorociboria aeruginosa and C. aeruginascens deposited at the Pacific Forestry Centre.

Habitat and Range

SIMILAR SPECIES
Chlorociboria aeruginascens has a stem that is usually off-center (infrequently central), whereas the stem of Chlorociboria aeruginosa is usually central (rarely off-center); C. aeruginascens often has several fruitbodies arising from each darkly pigmented irregularly shaped fundament or "stromatic mass", whereas C. aeruginosa arises singly from a scarcely differentiated stromatic mass; spores of C. aeruginosa are (8)9-14(15) x 2-4 microns, asci are (57)68-80(95) x (4)5-7(7.5) microns and ectal excipulum gives rise "to few to numerous, straight or coiled, strongly granularly roughened tomentum hyphae", (Dixon, who also describes interior stem flesh as orange yellow in C. aeruginosa and bluish aeruginous in C. aeruginascens). C. aeruginosa has smaller fruitbodies (less than 0.5cm across as opposed to up to 0.7cm) that usually arise singly as opposed to several arising from a common base, yellow-orange flesh instead of the same color as the exterior, and larger spores, (Trudell).
Habitat
single to gregarious on barkless and decayed wood; spring, summer, and fall, (Dixon), on rotting logs and barkless wood, especially oak, (Lincoff)

Synonyms

Synonyms and Alternate Names:
Chlorosplenium aeruginascens (Nyl.) P. Karst.
Dasyscyphus washingtonensis Dennis

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