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02-05-2024 20:04

éric ROMERO éric ROMERO

Bonjour, Une question à propos de la réaction a

30-04-2024 16:22

François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

01-05-2024 23:22

Ethan Crenson

Hi all, Found late last week in a New York City p

29-04-2024 21:32

Robin Isaksson Robin Isaksson

Hi! Found in Sweden. Ascomata with haris, se

01-05-2024 12:54

F. JAVIER BALDA JAUREGUI

Hello, everyone.An idea for this pyreno, I found u

30-04-2024 16:59

Sylvie Le Goff

Bonjour. Petite pézize récoltée au sol en bordu

30-04-2024 19:43

Gernot Friebes

Hi!We observed this hyphomycete growing between le

30-04-2024 16:08

maurice pelissier maurice pelissier

BonjourTrouvé dans un torrent de montagne au Chir

29-04-2024 21:51

Mathias Hass Mathias Hass

Hi everyone, Found on attached branches of top pa

28-04-2024 18:05

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé ce matin ce

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Pseudoplectania melaena
Nina Filippova, 02-05-2015 17:32
Hello,

this beautiful species was growing on a fallen branch of A. sibirica in coniferous forest, it appeared very early in spring after snow melt.

P. melaena seems to be synonymous with P. vogesiaca (but not in IF)?

Apothecia stipitate, disc 4 cm in diameter, stem 2 cm high, hymenium light brown with grayish, darker to the edge, outer surface black, glabrous, stem glabrous with black tomentum only at the base; two apothecia attached to fallen branch of Abies sibirica.

Excipulum from outer layer of prismatic incrusted cells, forming rossette shapes (surface view), inner layer from textura porrecta/intricata; asci cylindrical, with rooting base without crozier, 300-360 x 15-18; paraphyses cylindrical, septate, with enlarged bent to hooked upper part, with some brown incrustation in upper part, 3-4 broad in apices; spores 12.7 (11.8-13.4), round, with two hemispheric gelatinose appendages.

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Hans-Otto Baral, 02-05-2015 18:39
Hans-Otto Baral
Re : Pseudoplectania melaena
Yes, melaena is the correct name for vogesiaca.

Great how you saw the gel caps. How did you stain them., in Congo red?

Zotto
Nina Filippova, 02-05-2015 18:52
Re : Pseudoplectania melaena
Right Zotto,

it is CR in water, though they are seen without the dye as well. These gel caps gradually disappear with time (in the mount), i guess dissolving in water.
Hans-Otto Baral, 02-05-2015 19:59
Hans-Otto Baral
Re : Pseudoplectania melaena
yes, they strongly swell by water uptake after discharge, and finally seem to disappear.

I saw collections with two and others with only one gel cap.
Nicolas VAN VOOREN, 04-05-2015 11:49
Nicolas VAN VOOREN
Re : Pseudoplectania melaena
About the "gel", see information given in this new paper http://dx.doi.org/10.5248/130.1 about a new species, Pseudoplectania lignicola