Protodontia oligacantha G.W. Martin
no common name

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

Introduction to the Macrofungi


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E-Flora BC Static Map

Distribution of Protodontia oligacantha
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Species Information

SPORE (9)10-12(13) x (4)4.5-5(5.5) microns, cylindric to allantoid, usually with numerous small droplets, sometimes with 1-3 large droplets and numerous smaller ones, germinating by repetition; PROBASIDIA spherical to ovate or pyriform, "mostly 13-20 x 9-12 microns, becoming cruciate-septate, each cell producing a thick, rather short epibasidium, 2-2.5(3) microns in diameter"; DENDROPHYSES "3-4 microns in diameter at base, branching subdichotomously several times and irregularly attenuated toward the tips, sometimes with clamp-connections"; spines "fertile over most of the surface, as is the hymenium between them, but the extreme tip is often sterile", "owing to protrusion of an extension of the intermediate yellow layer, giving them a fimbriate appearance when examined dry under a binocular", spines "tend to be borne in lines on whitish strands, which makes the hymenial surface appear faintly reticulate under a lens"; hymenium "composed of colorless basidia and dendrophyses", the latter rather difficult to see since the terminal part does not stain; "in section 65-230 microns thick between the spines, composed of a colorless hymenial layer 20-40 microns thick, a yellowish basal layer of horizontal hyphae and an intermediate layer of variable thickness, clear yellow by transmitted light, which penetrates the spines, composed of indistinct agglutinated hyphae intermingled with crystalline accretions"

Habitat and Range

on dead wood of Populus trichocarpa (Black Cottonwood), July 26-August 11