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09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

07-07-2020 13:34

Markov Sergey

I found this peziza sp. on loamy soil - on the gro

08-07-2020 19:01

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je ne remets plus la main sur mon tiré-à

08-07-2020 20:29

Juuso Äikäs

These were growing on a dead grass stalk in a fore

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

08-07-2020 18:21

Castillo Joseba Castillo Joseba

me mandan el material seco recolectado en mdera si

08-07-2020 10:59

Joanne Taylor

Hi there,Does anyone have a copy of the following

07-07-2020 21:07

Lieve Deceuninck Lieve Deceuninck

Dear members of this forumCould this find be Cheil

08-07-2020 16:41

Thomas Læssøe

Suggestions on this one would be very welcomesee:

06-07-2020 17:11

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

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Asco sur bois de Tilia
Enrique Rubio, 06-04-2009 19:32
Enrique RubioJ'amairais conaitre votre opinion sur cet petit ascomycete (ascomata: 0.2-0.5 microns), sessile ou subsessile, avec l'hymenium amber-verdatre- brun, frangée de poils hyalines ou legerement brunatres dans la maturesse, avec les extremites epineuses (type Cistella?).
L'excipulum est gelifiée, avec textura porrecta et les asques (jusqu'a 60 x 7) ont des crochets, 8-spored et IKI rougeatre ou bleu-rougeatre. Spores 5.7-8.3 x 2.8-3.4.
Il croit de maniere gregaire sur le bois de Tilia mort.
Merci de votre aide

I'd like to know your opinion about this small asco (ascomata: 0.2-0.5 micr.) that grows on Tilia sp. wood. Sessile or subsessile. Hymenium umber-greenish-brownish. Excipulum with gelified textura porrecta. Asci up to 60 x 7, 8 spored, with croziers, IKI r or rb.
The distal element of the hairs are spiny (Cistella-like?) . Spores 5.7-8.3 x 2.8-3.4.
Many thanks for your help.
  • message #7362
Enrique Rubio, 06-04-2009 19:33
Enrique Rubio
Re:Asco sur bois de Tilia
Spores and excipulum
  • message #7363
Enrique Rubio, 06-04-2009 19:33
Enrique Rubio
Re:Asco sur bois de Tilia
Asci and paraphyses
  • message #7364
Enrique Rubio, 06-04-2009 19:33
Enrique Rubio
Re:Asco sur bois de Tilia
Hairs
  • message #7365
Guy Garcia, 06-04-2009 21:49
Re:Asco sur bois de Tilia
Voir vers Cistella perparvula
Hans-Otto Baral, 06-04-2009 22:09
Hans-Otto Baral
Re:Asco sur bois de Tilia
Considering the tuberculate hair warts and the gelified excipulum this could well also be a Hyphodiscus. Spores and hemiamyloid ring would fit too.

Zotto
Enrique Rubio, 07-04-2009 13:31
Enrique Rubio
Re:Asco sur bois de Tilia
Thank you, Gut and Zotto.
There exists some species of Hyphodiscus that can fits with mine?
Some apos of my collection closely grew on pyrenomycetes
Hans-Otto Baral, 07-04-2009 17:29
Hans-Otto Baral
Re:Asco sur bois de Tilia
Hyphodiscus becomes more and more complicated. If you send me your plates by email in larger resolution, i will try to compare with my data.

Zotto
Hans-Otto Baral, 08-04-2009 23:00
Hans-Otto Baral
Re:Asco sur bois de Tilia
Dear Enrique

I compared your fungus with my images and come to the conclusion that it should be Hyphodiscus hymeniophilus, if it is a Hyphodiscus at all. The gel alone is not a good character in my opinion to distinguish two genera. In some of my finds I am similarly undecided to which of the two I should place them. But merging them is probably also no good solution.

I do not know Cistella perparvula. Guy, do you have images of a collection? It would perhaps be helpful to have a median section of the excipulum to see better the gelification and the orientation of the cells.

Zotto
Guy Garcia, 09-04-2009 22:30
Re:Asco sur bois de Tilia
Bonsoir,
Zotto, je ne connais Cistella perparvula que de la littérature. Voici mes notes sur ce taxon :
Cistella perparvula (P. Karst.) Nannf. 1932 Acta Reg. Soc. Sci. Upsal. 4(8) : 270 [P7]
º Peziza perparvula Karst. 1869 Not. Faun. Fl. fenn [Mon. Pez. Fen.] 10 : 162, n° 145 [P7]
º Mollisia perparvula (Karst.) Karst. 1871 Mycol. Fenn. 1 : 191 [P7 ; S8:341]
º Micropodia perparvula (Karst.) Boud. 1907 Discom. Eur. : 128
? ≠ Pezizella perparvula Karst. in Sydow M. March. n. 577 = ? Pezizella pudica Rehm Disc. : 657 selon S11:406
Diagnose: Apothecia sparsa vel gregaria, subobconica, albida, deorsum fusca, latit. 0,2-0,4 mm. ; sporae oblongatae vel elongatae, rectae vel curvulae, simplices vel guttulis exiguis paucis praeditae, longit. 7-10 mmm.,crassit. circiter2 mmm. ; thecae fusoideo-clavatae, longit. 60-70 mmm., crassit 6-8 mmm., apice iodo non tinctae ; paraphyses parum notabiles. Supra corticem Tiliae parvifoliae (et Betulae ?) prope Lukkarais in Merimasku regionis Aboësis mense Augusto.
Variat stipite brevissimo crasso fusco. Praecedenti nonnihil similis, sed notis datis facillime distinguenda. [Peziza vulgaris Fr. Syst. Mycol 2 : 146 (Desmaz. Cr. Fr. ed. 1 : 1065 et ed. 2 : 465) = Peziza albella With. Arr. 4 : 350 = Peziza avellanae Lasch. in Rabenh. F.E. ed. nov. 28]
Support: sur écorce de Tilia ou autres feuillus.
Notes: exclue du genre Clavidisculum (= Cistella = Discocistella) selon RAITVIIR 1970:79 et absente du genre Cistella (= Clavidisculum = Discocistella) chez RAITVIIR 2004. KARSTEN 1871 :191, lors de la combinaison dans le genre Mollisia signale des apothécies pouvant être substipitées (certainement ce qui influencera BOUDIER pour un transfert dans ses Micropodia) et surtout des asques I-. DENNIS 1949:59 signale des poils lisses faisant référence au dessin de NANNFELDT 1932 : 270, fig. 43d qui a étudié le type.
Biblio: DENNIS 1981 : 175, fig. XXIV K ; ELLIS & ELLIS 1985:5 ; BARAL & KRIELSTEINER 1985:63 ; CANNON et al. 1985:50 ; VA.

Avec des poils lisses difficile d'en faire un Cistella !
Amitiés, Guy
Hans-Otto Baral, 09-04-2009 23:12
Hans-Otto Baral
Re:Asco sur bois de Tilia
The remark "brown below" does not seem to fit to the present fungus. But from where do you have the statement that the hairs are smooth? Was it Raitviir?

Zotto
Guy Garcia, 10-04-2009 06:53
Re:Asco sur bois de Tilia
DENNIS 1949:59 signale des poils lisses faisant référence au dessin de NANNFELDT 1932 : 270, fig. 43d qui a étudié le type.
Hans-Otto Baral, 10-04-2009 19:16
Hans-Otto Baral
Re:Asco sur bois de Tilia
Yes, in comparison with the above row of typical Cistellas, C. parvula is smooth. So in the present concept of Cistella this is no Cistella, and also not the fungus of Enrique. But I would not wonder when sometimes molecular data would include smooth-haired species in Cistella.

Zotto
Enrique Rubio, 10-04-2009 22:44
Enrique Rubio
Re:Asco sur bois de Tilia
Merci beaucoup a les deux par votre aide. Many thanks again, Zotto.