Phaeohelotium ?? - Forum ASCOFrance

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Phaeohelotium ??

Rubén Martínez-Gil, 06-12-2015 23:37

Hola a todos.

Subo unas fotos de unos ascos que he encontrado hoy sobre cáscaras de bellotas de Quercus.

Miden hasta 1,2 mm de diámetro.

Esporas de 9-11,5 x 4-5 micras.

Ascas con croziers y no amiloides. Pongo fotos de excípulo ectal y del margen del apotecio.

Pensé en Phaeohelotium pero creo que estas especies deberían ser amiloides.

¿Pueden ayudarme? Gracias.

Rubén

Hans-Otto Baral, 07-12-2015 09:13

Re : Phaeohelotium ??

Looks to me like Phaeohelotium imberbe (Hymenosc. imberbis), maybe I rarely saw an inamyloid form. But this group is difficult. The VBs in the paraphyses are normally strongly refractive, and in the marginal cells and cortex at the flanks I miss them here.

Rubén Martínez-Gil, 07-12-2015 09:29

Re : Phaeohelotium ??

Hola.

Gracias por su ayuda, Zotto.

Subo imágenes de margen apotecio y de paráfisis con gútulas, pero no he visto en células de excípulo ectal.

Rubén