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19-08-2022 22:26

Juuso Äikäs

A few years ago I found a group of olive-brown fru

19-08-2022 19:05

Stefan Jakobsson

On a petiole of a leaf of what seems to be Populus

09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

13-08-2022 17:18

Stephen Mifsud Stephen Mifsud

I assumed these are weak colonies of Neurospora on

18-08-2022 17:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283042

10-08-2022 15:45

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

02-08-2022 17:48

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

16-08-2022 20:07

Bernard Declercq Bernard Declercq

Good evening,Who could be so kind to supply me fol

07-01-2014 23:04

Michel Hairaud Michel Hairaud

Bonjour à tous, Hi to all. This tiny bright yell

16-08-2022 15:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283169

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An Incrupila like collection
Michel Hairaud, 12-03-2014 11:46
Michel HairaudBonjour à tous, Hi to all, 

Je sollicite votre aide pour la détermination de cette récolte  ou vos commentaires . 

Substrat : Tige de Yucca gloriosa (soc : Patellaria atrata )
Apothécies : , --> 1,5 mm,  urcéolées puis étalées-discoides , grisâtre avec une nuance d'olivâtre, hymenium crème à jaunâtre. 
Surface externe recouverte de poils --> 35 µm , 1-2 septa , englués dans une gangue de cristaux grossiers , rempli de vacuoles réfringentes (comme dans les paraphyses) à CRB +. 
Asques 45-55 x 5,5-6 (7), H+, IKI - PS 22-24 µm
EE T. prismatica , orientation à angle faible, cellules  à guttules  peu réfringentes,  10-15 x 3,5-6 µm 
EM plus étroite, T. intricata , cellules x 2-3,5

Il me semble que des tissus gélatineux sont présents mais ne parviens pas à les mettre en évidence avec le CRB (?)  

Paraphyses : VBs ++ CRB +, x 2-3,5 

Spores lisses, OCI 1-2, 7-10 x 2-2,5

Je ne trouve pas de corespondance pour une espèce du genre Incrupila ou Hyphodiscus dans la littérature dont je dispose. 

I thought this collection would belong in Incrupila (or Hyphodiscus ?) but cannot find any species matching in the literature I have

Merci 
Michel

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Raúl Tena Lahoz, 12-03-2014 11:57
Raúl Tena Lahoz
Re : An Incrupila like collection
What about Cyathicula?

Amitiés,
Raúl
Hans-Otto Baral, 12-03-2014 12:25
Hans-Otto Baral
Re : An Incrupila like collection
Yes! With VB++ you refer to the multiguttulate paraphyses. This species is actually not easily recognized as a Cyathicula, I was also deceived the first time.

It fits C. nigrofusca in my opinion. The inamyloid asci characteristic of C. nigrofusca underline its desiccation-tolerance. The brown colour of cortical ectal cells cause a dark appearance especially when dry.

Zotto
Michel Hairaud, 12-03-2014 14:29
Michel Hairaud
Re : An Incrupila like collection
Yes of course ! Ha Ha  :-) !
Bien joué Raoul et Zotto !

I did not think about Cyathicula at all ! I was deceived by the lack of stipe  and  the thick layer of crystals. 
Strange that Carpenter says ''Crystals not observed on the outer surface of the apothecium''

I wonder whether C. complicata is actually different . The main difference in Capenter's key is  the woody substrate and we know that Yucca welcomes species ordinary found on wood (Unguiculariopsis ilicincola for exemple) .  

Moreover they both (nigrofuscum and complicata) occur in Alpine and Boreal zones,  which leaves no doubt as to my collection for I collected it on the very sea side of Ile de Ré -:)

It's very kind of you Zotto to say it's a difficult species to place at first sight in Cyathicula and that you were once also decceived . It gives me much hope to become a mycologist in the future -:)

It also fits with Jean Paul's fiche on Ascofrance :
http://www.ascofrance.fr/search_recolte/1636

Thank you ever so much anyway both of you friends ! 



Amitiés
Michel
Enrique Rubio, 12-03-2014 17:26
Enrique Rubio
Re : An Incrupila like collection

Hi Michel


We have collected nigrofuscum (on Cortaderia selloana) and complicatum (on Sarothamnus) in Asturias at 600 and 400 m respectively.


 


Regards


Enrique

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Hans-Otto Baral, 12-03-2014 17:42
Hans-Otto Baral
Re : An Incrupila like collection
My first record of C. nigrofusca was on a real herb in a submediterranean area near Madrid. Yes, this is strange, also with the crystals. 

I know C. complicata from a single find (in Cubby) by P. Perz 20050816-001: On wet cut surface of branch of "Prunus sp.", surface little rotten. Ap. rehydr. 0.5-0.8 mm diam. Asci KOH 48-57 x 4.8-5.5 µm, apex +/- hemisph., thin-walled, IKI-, with croziers. Sp. *7-9 x 2.3-2.7 µm, straight, ellipsoid-subclavate, OCl 1-1.5 a few small LBs near each end.

Piotr was quite sure about the identity. Well, I see that the characters are very similar to nigrofusca too. So the name complicata is a good choice :-)

Zotto
Michel Hairaud, 12-03-2014 23:06
Michel Hairaud
Re : An Incrupila like collection
Hi Enrique, 
Thnak you for your message.
I suppose your plate here represents C. complicata ? I cannot see crystals on the hairs 

DO you also have a plate for he other species and did you actually observe noticeable differences between the 2 species ?

AMitiés
Michel
Michel Hairaud, 12-03-2014 23:15
Michel Hairaud
Re : An Incrupila like collection
Thanks Zotto for this description , no crystals mentionned but the pictures in your file do show the same type of crystals noticeable in my collection. 

Michel
Michel Hairaud, 13-03-2014 10:17
Michel Hairaud
Re : An Incrupila like collection
Sorry I wanted to add that I also noticed as you did on your plate the green shade on margin hairs . 

Michel
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