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

Dacrymyces minutus (L.S. Olive) McNabb
no common name

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

Introduction to the Macrofungi

© Jim Riley  Email the photographer   (Photo ID #19498)

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Distribution of Dacrymyces minutus
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Species Information

{See also Dacrymyces Table.} Dacrymyces minutus is characterized by small fruiting bodies, thick-walled cortical hairs, and 3-septate spores (McNabb 1973). The fruiting bodies are shallowly cushion-shaped to cup-shaped, gregarious, and dull orange to bright orange-yellow when fresh.

It is been found in BC, WA, NC, and SC, (Ginns).
Fruiting body:
0.08-0.3cm in diameter, about the same in height, pulvinate [cushion-shaped], turbinate [top-shaped] or shallowly cup-shaped, occasionally irregular, firm-gelatinous, gregarious; dull orange to bright orange-yellow when fresh, drying reddish orange to orange brown; substipitate or stipitate (with a stem or with somewhat of a stem), stem rarely to 0.3cm long, (McNabb)
spores 13-18(19.5) x 4.5-6(7) microns, curved-cylindric, tinted, thin-walled with thin septa, apiculate, becoming 3-septate at maturity, germination by colorless conidia or by germ tubes; probasidia 30-58 x 4.5-6 microns, cylindric to cylindric-subclavate, with basal clamp connections, becoming bifurcate; hymenium "confined to surface of disc or interior of cup, composed of basidia and occasionally simple, cylindrical dikaryophyses"; cortex "covered with thick-walled, simple or branched, clamped hairs, terminal cells varying in shape from narrowly clavate to broadly obovate, smooth, to 50 x 11 microns"; internal hyphae "thin-walled, roughened, clamp connections present", (McNabb)

Habitat / Range

gregarious on conifer wood (McNabb), Pinus contorta, Tsuga species, (Ginns)

Synonyms and Alternate Names

Guepiniopsis minuta L.S. Olive
Polyporus corticola Fr.
Poria corticola (Fr.) Cooke

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Additional Photo Sources

Related Databases

Species References

McNabb(8), Ginns(5)

References for the fungi

General References