Summary:
Features include small hard blackish or greenish fruitbodies on Douglas-fir, without a stem or substipitate, and microscopic characters.
Collections were examined from BC, OR, and CA, (Groves). There are collections from BC at the Pacific Forestry Centre determined by A. Funk.
Upper surface:
0.1-0.4cm across, 0.03-0.3cm high, circular to slightly elongated or undulate, erumpent, hard, horny; spore-bearing upper surface concave to flat, more fleshy than exterior, black or greenish when moist; "at first with a thick, raised, more or less infolded margin which later may disappear"; conidial fruiting bodies 0.03-0.07cm across, 0.05-0.01cm high, erumpent, separate or cespitose, sometimes arising from same stroma as fruiting bodies, containing a single spherical to ovoid cavity opening at top, (Groves)
Flesh:
hard and horny in consistency, becoming more cartilaginous when moist, (Groves)
Underside:
black, sometimes slightly greenish pulverulent [powdery]; bald, (Groves)
Stem:
sessile or substipitate, fruitbody narrowed in lower part, (Groves)
Microscopic:
primary ascospores 15-25 x 4-6 microns, elliptic-fusiform, colorless, several-septate to muriform, uniseriate, secondary ascospores 2.0-4.0 x 1.0-1.5 microns, cylindric to allantoid, one-celled, colorless; asci at first 8-spored, becoming multispored, (175)190-240(260) x (18)20-23(25) microns, cylindric, narrowed in lower part to a short stem, obtuse at top, at first with walls thickened and gelatinized, becoming thinner when mature; paraphyses 1.5-2.0 microns wide, filiform [thread-like], colorless, septate, simple or branched, the tips slightly swollen and embedded in a brownish gelatinous matrix, forming an epithecium; conidia 2.0-4.0 x 1.0-1.5 microns, cylindric to allantoid, one-celled, borne at tip and along sides of conidiophore; conidiophores lining the cavity of conidial fruitbody, 15-45 x 1.5-2.0 microns, filiform, septate, colorless, simple, (Groves)
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