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23-02-2015 13:25

Malcolm  Greaves Malcolm Greaves

Can someone help with what I was sure was a Coprot

28-02-2013 00:30

Miguel Ãngel Ribes Miguel Ángel Ribes

Good nightThis is from La Gomera (Canary Islands),

23-02-2015 08:58

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra sobre estiercol de Corzo,

22-02-2015 12:48

hannie wijers

Hello, Is there someone who has some literarure a

21-02-2015 08:16

Edit Szilvásy Edit Szilvásy

Hy to all, Yesterday I found this mushroom. Such s

22-02-2015 08:02

Guy Garcia

Hi all,I am looking for the following publication.

22-02-2015 22:34

Ueli Graf Ueli Graf

Hallo habe diesen Ascomyceten gestern auf einem Ah

22-02-2015 20:47

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThis orange, small (1 mm), not coproph

22-02-2015 17:33

Ahmed Mohamed Abdel-Azeem Ahmed Mohamed Abdel-Azeem

New record of genus Peziza in Egypt

19-02-2015 23:31

Miguel Ãngel Ribes Miguel Ángel Ribes

Good nightI think this orange 1-1,5 mm discs on re

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Tarzetta
Zuzana Sochorová (Egertová), 27-05-2015 22:16
Zuzana Sochorová (Egertová)Hello,
I often have troubles with determination of Tarzetta.
This one was found yesterday in a park (Kvetna zahrada, strongly influenced by a man), tens or few hundreds of apothecia on soil under young Carpinus trees.
Apothecia measured up to 32 mm, stipe was hiden in the substrate and measured up to 8 x 4 mm. The warts were quite bold.
Spores (from sporeprint, measured in water): 19-22.2 x (11-)12-13(-14) micrometers, ellipsoid with little bit narrower poles, hyaline, smooth, with two guttules (8-9 micrometers).
Paraphyses are sometimes simple, sometimes (in cca 20%) enlarged, branched or with lobes on the apex, but never so crazy as in the right part of the pictures depicting T. spurcata and T. pusilla in the article by Harmaja.
In the key in the article by Yao and Spooner I cannot decide already in the first step, because my apothecia are larger than 2 cm, but distincly pustulate, not finely.
Finally, I think T. catinus seems to be the best choice, but the apothecia could be bigger and with smaller warts... What do you think?
Zuzana
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René Dougoud, 28-05-2015 10:10
Re : Tarzetta
Chère amie,

Je détermine cette espèce comme T catinus. Le diamètre des apothécies peut varier, idem pour la furfuration. La présence de quelques paraphyses diformes au sommet est nornale et leur nombre peut également varier et sans doute plus avec l'âge. Les apothécies sont peu ou pas stipitées et souvent percées au fond de la cupule. Elle ne présente pas de voile, même sur les jeunes exemplaires. A noter, sur les espèces du genre, l'absence de crochet et la coloration des noyaux au carmin acétique.

Cordialement

René
Zuzana Sochorová (Egertová), 28-05-2015 12:22
Zuzana Sochorová (Egertová)
Re : Tarzetta

Merci, René!


The paraphyses seemed somewhat changing with the age to me too - the most branched paraphyses were found in the largest apothecium.


Best regards,


Zuzana