08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
Growing on Carex limosa leaves, in bog.
Apothecia stipitate, white with white or yellowish hymenium, disc to 0,5 mm in diam, all frb to 300 mk high, stipe about 150 mk high; edge ciliate from hairs (lens), outer surface and stipe covered by hairs as well.
Excipulum textura porrecta/prismatica at stem, textura globosa/prismatica at flanks, cells with thickened walls, about 10 x 6,5; hairs with broadened base and tip, grow from 1-2 globose cells at base, measured length x width at neck x width at tip: 47-70 x 2-3 x 3-5; asci cylindrical, clampless, pore amyloid, 33-44,5 x 3,5-4,2; paraphyses lanceolate, exceeding the asci for 30 mk, broadest ipart in the middle of length, wih 2-3 septa in basal part, sometimes with 2-3 outbranches in basal part, 63-73 x 2,6-3,4 (width in broadest part); spores narrow-fusiform, with small guttules at the ends, 14 (12,2-16,6) x 1,5 (1,4-1,6) (Q=9,5; N=17).
Hairs doesn't seem to be incrusted, but maybe they are so finely...
We do not know if your species has guttules in the paraphyses, but since it does not seem to change reddish with age, I assume it hasn't.
L. imbecille has much larger spores and a reddish hymenium. L. tenue has shorter spores. But what about Lachnum schoenoplecti? I noticed spores up to 28 x 2.3 µm, but also 12-20 x 1.6-1.9 (live).
Zotto
This specimen do not have reddish in color, and not turn reddish/brownish on drying, right.
I looked at at your specimens of L. schoenoplecti, it looks similar. Praphyses in mine more protruding above the asci. Host - yours 5688 collected from Carex as well? I downloaded your paper with sp. nov. description, will read it.
But protrusion is less so in the living state. In the protologue, 10-15 µm seems to refer to living asci.
here is the original article
Zotto
Raitviir-amp-Blank-1998-Schoenoplectus-1-0001.jpg
Raitviir-amp-Blank-1998-Schoenoplectus-2-0001.jpg
Raitviir-amp-Blank-1998-Schoenoplectus-3-0001.jpg
Raitviir-amp-Blank-1998-Schoenoplectus-4-0001.jpg