E-Flora BC: Electronic Atlas of the Flora of British Columbia

Tubulicrinis borealis J. Erikss.
no common name
Hymenochaetaceae

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

Introduction to the Macrofungi
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Distribution of Tubulicrinis borealis
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Species Information

Summary:
Features include 1) resupinate growth on conifer wood, 2) a whitish to grayish white, soft, waxy fruitbody that is finely pored to continuous, under a lens bristly from cystidia, the margin thinning out, 3) spores that are allantoid, smooth, inamyloid, and colorless, 4) basidia that are subclavate, thick-walled except for the upper part, and strongly amyloid, 5) cystidia that are amyloid, dissolving in KOH, cylindric, thick-walled with capillary lumen except at the obtuse apex where the wall is thin and mostly incrusted, the base bifurcate (rooting), and 6) a monomitic hyphal system, the hyphae with clamp connections, in the subhymenial layer thick-walled and invariably amyloid.

Tubulicrinis borealis has been found in BC and OR, (Ginns). Its distribution also includes Switzerland (Breitenbach), and northern Scandinavia including Sweden, (Hjortstam).
Fruiting body:
resupinate, effused [spread out], thin or when fully developed often up to 0.007-0.01cm thick; whitish, grayish white, or especially when dried, pale ochraceous; porulose to continuous, with a pilose appearing from the protruding cystidia; margin thinning out; (Hjortstam), resupinate, tightly attached, "forming thin, floccose-pubescent, more rarely open-membranous patches" a few centimeters across, consistency soft, wax-like; white to gray-white; under a hand lens finely pubescent-hispid [downy-bristly]; margin diffuse, (Breitenbach)
Microscopic:
SPORES (5)5.5-6.5(7) x (1.8)2(2.2) microns, allantoid, smooth, thin-walled; BASIDIA 4-spored, "in dense clusters, subclavate", more or less stemmed, after sporulation usually shrunken and with a conic appearance, about 12-18 x 4-4.5 microns, "thick-walled except for the upper part, strongly amyloid", with a basal clamp connection that is difficult to see; CYSTIDIA cylindric, strongly amyloid, generally 60-80 microns long and 5-7 microns wide in the middle part, "narrowing slightly towards the neck, then slightly widened to the obtuse apex, mostly encrusted with crystalline matter at the thin-walled upper part, capillary lumen narrow, gradually expanded or more commonly abruptly widened, occasionally asymmetric"; HYPHAE monomitic, "thin-walled or more often with slight wall thickening, in the subhymenial layer distinctly thick-walled, 2-3 microns wide, and invariably amyloid", all hyphae with clamp connections, (Hjortstam), SPORES 5-6 x 2-2.5 microns, elliptic-cylindric, slightly allantoid, smooth, inamyloid, colorless; BASIDIA 2-4-spored, 8-12 x 4-5 microns, short-clavate, with basal clamp connection; LYOCYSTIDIA 60-90 x 4-7 microns, thick-walled, cylindric "with a slightly widening tip in some and abruptly thin-walled, tip sometimes encrusted", base rooting, cystidia dissolving in KOH, amyloid in Melzer''s reagent; HYPHAE monomitic, 2.5-5 microns wide, thin-walled to thick-walled, septa with clamp connections, (Breitenbach)

Habitat / Range

on all kinds of barkless conifer wood, "often on fencing and other timber lying on the ground", (Hjortstam), on rotten wood of hardwoods and conifers, as well as old resupinate polypores; throughout the year, (Breitenbach), on Pinus contorta (Lodgepole Pine), Pseudotsuga menziesii (Douglas-fir), (Ginns)

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

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Related Databases

Species References

Hjortstam(6), Breitenbach(2)*, Ginns(5)

References for the fungi

General References