Collection location: Edgewood Blue, Wells Gray region, British Columbia, Canada [Click for map]
on half-rotten thin small leaf (herb?), scattered all over it
APOTHECIA: v minutely stalked, densely short whitish shaggy, disk slightly darker pinkish-brownish but still very pale, all parts K negative
ASCI: smallish, cylindrical but tapered below half, rounded tip, staining rather golden brownish in Lugol’s, smooth, width (3.6)4.7+/-0.7(5.7) µm (N=6)
PARAPHYSES: much longer than asci, thick, pointed end, septate, not at all constricted, smooth, IKI negative to somewhat golden brown
SPORES: comet-shaped to narrowly oblong, smooth?, (7.5)9.5+/-1(11) x (1.5)1.8+/-0.25(2.2) µm, Q = (4.7)5.1+/-0.3(5.6) (N=7), at least 4 per ascus possibly more?, packed into top half diagonally
There’s quite a selection of these minute fungi in Fungi of Switzerland growing on a host of improbable substrates, from dead horsetail stalks to leaves of a single species of Vaccinium, but all have those same cool paraphyses.
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In addition to relative size of spores, asci and paraphyses, glancing back through Fungi of Switzerland, I see that the hairs differ markedly from species to species. Sadly I have not taken the time to make the necessary observations.
Without a treatment that at least pretended to cover a sizable percentage of the genus (and possibly related genera?), I would feel very uncomfortable lumping this with any other species.
Well, on woody substrate I found something I id’ed as Dasyscyphus virgineus, in the spring in the Sierras. Darvin found something similar that he id’ed as Lachnum virgineum, which I believe is a synonym.
Not sure what might make the difference between these and other lanceolate paraphases type guys, but you could group these together for now, since microscopically they look the same.