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Crocicreas dolosellum?
Javier Ormad,
01-11-2013 22:38
Os presento un especimen en hojas de Fraxinus sp. muy, muy deterioradas, prácticamente sobre los nervios de la hoja. Apotecios disciformes, estipitados, blanquecinos, con flóculos periféricos, de hasta 1 mm de diámetro, distribuidos por el sustrato.
Ascas claviformes, octosporadas, biseriadas, sin uncínulos, IKI+, con canal apical corto, de 60-75 x 7.5-8 micras. Ascosporas elipticas irregulares, lisas, hialinas, con gutulillas en extremos esporales, de 9-10 x 3.5-4 micras. Parafisis filiformes, hialinas, septadas, de hasta 3 micras de grosor. Pelos hialinos, septados, de hasta 145 x 6 micras, surguiendo de un excípulo ectal de estructura angularis. Exípulo medial prismático. Pie con estructura prismática angularis.
¿Que os parece?
Saludos
René Dougoud,
02-11-2013 07:46
Re : Crocicreas dolosellum?
Cher Collègue,
Il ne s'agit pas d'un Helotiaceae, mais de bien, de par la présence de poils (bien visibles sur vos photos et de par la texture de la chair) d'un Hyaloscyphaceae. La forme des poils ainsi que la présence possible de granullations sont très importants pour la détermination.
Cordialement
René
Il ne s'agit pas d'un Helotiaceae, mais de bien, de par la présence de poils (bien visibles sur vos photos et de par la texture de la chair) d'un Hyaloscyphaceae. La forme des poils ainsi que la présence possible de granullations sont très importants pour la détermination.
Cordialement
René
Hans-Otto Baral,
02-11-2013 08:34
Re : Crocicreas dolosellum?
Hi Javier
this is a very interesting collection. I actually described a new species, which is intended to be published during winter. It reminds me of your, and I saw it only once, on Acer campestre leaves. Drawing attached.
The spores are more fusoid in my specimen, otherwise I see good concordance. Were your paraphyses also a bit tapring above (sublanceolate)? How does the hair apex look`
Zotto
this is a very interesting collection. I actually described a new species, which is intended to be published during winter. It reminds me of your, and I saw it only once, on Acer campestre leaves. Drawing attached.
The spores are more fusoid in my specimen, otherwise I see good concordance. Were your paraphyses also a bit tapring above (sublanceolate)? How does the hair apex look`
Zotto
Javier Ormad,
02-11-2013 12:33
Re : Crocicreas dolosellum?
Hola Zotto y René!
Ciertamente, esta especie se aproxima a la que tú presentas, si no es la misma......
Las parafisis no las veo claramente que sean sublanceoladas. Me resulta dificil encontrar croziers, aunque en la última imagen es lo que más se parece.
Envío tambien foto de ápice de pelos. He llegado a medir hasta 200 micras de longitud
Hi Zotto and René!
Certainly, this species is close to what you present, if not the same ......
The paraphyses not be sublanceolates see clearly. I find it difficult to find croziers, although in the last picture is what most resembles.
Shipping apex hairs photo also. I have measured up to 200 microns in length
Ciertamente, esta especie se aproxima a la que tú presentas, si no es la misma......
Las parafisis no las veo claramente que sean sublanceoladas. Me resulta dificil encontrar croziers, aunque en la última imagen es lo que más se parece.
Envío tambien foto de ápice de pelos. He llegado a medir hasta 200 micras de longitud
Hi Zotto and René!
Certainly, this species is close to what you present, if not the same ......
The paraphyses not be sublanceolates see clearly. I find it difficult to find croziers, although in the last picture is what most resembles.
Shipping apex hairs photo also. I have measured up to 200 microns in length
Hans-Otto Baral,
02-11-2013 16:37
Re : Crocicreas dolosellum?
Hi Javier
it looks like if the asci are simple-septate? And the hairs remind of an Albotricha. I looked for one described by Hosoya (A. fagicola), but that has almost entirely granulated hairs.
Also most of the species are graminicolous or herbicolous.
If you don't mind please send me the specimen, this would be very interesting (best in dry state, the vital characters are seen on your photos).
Zotto
Hans-Otto Baral
Blaihofstr. 42
72074 Tübingen
Germany
it looks like if the asci are simple-septate? And the hairs remind of an Albotricha. I looked for one described by Hosoya (A. fagicola), but that has almost entirely granulated hairs.
Also most of the species are graminicolous or herbicolous.
If you don't mind please send me the specimen, this would be very interesting (best in dry state, the vital characters are seen on your photos).
Zotto
Hans-Otto Baral
Blaihofstr. 42
72074 Tübingen
Germany