Lachnum ?callimorphum - Forum ASCOFrance

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)

Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

23-05-2026 18:57

Mollisia scopiformis

Sylvie Le Goff

Bonjour à tousRécolté sur une branchette de Sal

23-05-2026 11:44

Coprophilous pyrenomycete on wild boar dung

Charles Grapinet

Hello, I am having trouble identifying this copro

22-05-2026 21:35

A yellow synnemata (coremia) on wood

Steve Clements

Bonjour, I expected this find on old wood on our

22-05-2026 18:12

Lothar Krieglsteiner

... in moist chamber from Portugal.As the fungus s

22-05-2026 20:08

tiny gray asco on Pinus strobus / moss

Ethan Crenson

Hello all, Yesterday in NYC I was visiting an e

11-01-2022 16:36

Literature request: Raitviir (2004) Revised synopsis of Hyaloscyphaceae?

Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

20-05-2026 17:47

Mollisia on Juncus

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Rebentischia-like on Acer campestre

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

Lachnum ?callimorphum

Nina Filippova, 24-02-2013 17:38

I was going through the key by Raitviir (1970) to come to this species; but Lachnum's are so numerous that id seems so uncertain..

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).

Nicolas VAN VOOREN, 24-02-2013 17:46

Re : Lachnum ?callimorphum

Hello.
Hairs doesn't seem to be incrusted, but maybe they are so finely...

Nina Filippova, 24-02-2013 17:54

Re : Lachnum ?callimorphum

Well encrusted, actually). Some out of focus, but they completely rough at entire length.

Hans-Otto Baral, 24-02-2013 18:22

Re : Lachnum ?callimorphum

I do not believe that it is callimorphum, which I do not know. But look at Dennis' 1963 type description: the hairs lack an apical inflation.

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

Nina Filippova, 24-02-2013 18:42

Re : Lachnum ?callimorphum

Hello, 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.

Hans-Otto Baral, 24-02-2013 21:30

Re : Lachnum ?callimorphum

Yes, 5688 is on Carex ?acutiformis. 12-28 µm protrusion is very much, you say 30 µm, almost incredible :-)

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

Accès membres

Forum AscoFrance