Apotecios hasta de 1 mm, cortamente estipitados, con el himenio blanco y la parte externa concolor cubierta de pelos, creciendo sobre restos de gramíneas, probablemente Melica bocquetii.

Excípulo ectal compuesto por células hialinas de textura prismática. Excípulo medular compuesto por células alargadas e hialinas de textura intrincada. Pelos cilíncricos, ligeramente ventrudos, multiseptados, hialinos, impregnados por una sustancia resinosa que no desaparece en KOH, de (128-)135-191(-226) µm, Me = 166 µm, de longitud y (3.3-) 3.6-4.6(-5.0) µm, Me = 4.1 µm de anchura, medidos en su zona más ancha. Ascas de (71-)72-84(-85) x (9.4-)9.5-10.5(-11.0) µm, N = 10, Me = 79 x 10.1 µm, unitunicadas, cilíndrico-claviformes, octospóricas, con el poro apical euamiloide de tipo Calycina y sin croziers en la base. Ascosporas de (14.1-)14.6-21.2(-21.7) x (3.3-)3.4-4.2(-4.3) µm, Q = (3.6-)3.9-5.7(-5.8), N = 33, Me = 17.9 x 3.8 µm, Qe = 4.7, biseriadas en la parte superior de las ascas, fusiformes, lisas e hialinas, con algunas pequeñas gútulas en los extremos. Paráfisis lanceoladas, septadas con el último segmento de (3.3-)3.6-5.7(-5.9) µm, Me = 4.7 µm de anchura.

Saludos.
Salvador. 

Hans-Otto Baral, 02-03-2015 16:51

Re : Albotricha

Dear Salvador

for A. acutipila I have these measurements from different collections:
*(8-)11-18(-25) x 1.5-2.2 µm

Your spores I evaluate as 14-21.3 x 3.3-3.8 µm, so much wider.

Did you photograph the absence of croziers?

I am not fully sure that crystals are absent, but I think so.

Hair length you give is extraordinary!

I am sorry I do not know this species.

Hans-Otto Baral, 02-03-2015 18:05

Re : Albotricha

You are right, I confirm: no croziers, like in acutipila.

Hans-Otto Baral, 02-03-2015 22:27

Re : Albotricha

You are right, D. caduca seems to be close. But the spores are narrower and have less oil. Albotricha and Dasyscyphella are - in my opinion - difficult to delimit, and until recently I preferred to merge them. When you look in Index Fungorum you see quite a few Albotricha combinations, including caduca. I thought there is a more recent key on the genus but I don't remember where, or I am wrong.

Genetically, Albotricha albotestacea and acutipila fall apart from wood-inhabiting Dasyscyphella spp., so the genus appears to make sense. But which species belongs in it is not clear in the lack of molecular data.