29-05-2015 00:31
Jenny Seawright
Hello all, Lichenicolous fungus on on the thallus
24-05-2015 19:53
Alessio Pierotti
I apologize now for my request.This time I do not
28-05-2015 15:24
Nicolas VAN VOOREN
An Australian colleague (Heino Lepp) submits a col
27-05-2015 22:16
Zuzana Sochorová (Egertová)
Hello,I often have troubles with determination of
24-05-2015 21:51
Eduard OsieckRecently Splanchnonema quercicola and Pleomassaria
16-05-2015 08:20
Castillo Joseba
Me envian foto desde GaliciaComo voy a estar fuera
26-05-2015 17:19
Nicolas VAN VOOREN
Bonsoir.Je cherche l'article suivant:Yao Y.J., Spo
The main difference: there are two types of paraphyses: filiform and lanceolate (I don't think that it is underdeveloped, rather two different).
Apothecia turbinate, short-stipitate, up to 0,5 mm in diametre, 0,5 mm high, outer surface smooth, brown, edge (collar) lighter, narrow, hymenium grayish, concave; growing in dense groups.
Excipulum from textura oblita; asci cylindrical, with croziers, with euamyloid pore, about 50 x 6,5; paraphyses of two types: filiform and lanceolate in one apothecium, filiform scarsely branched, 1,5 mk broad, some enlarged at tips, lanceolate exceeding the asci by 10 mk, up to 3,5 mk in largest part, with 2-3 septa in lower part, may be with thin outbranches; spores ellipsoid, slightly curved, with two big guttules (vital, i suppose it was in water), 10,7 (10-11,8) x 3,3 (3,1-3,5) (N=12).
On dead leaves of Milium effususm, coniferous mixed forest, N61,086961 E69,466226, 12.06.2012.
Incredible! So you did these vital photos in June on the fresh specimen. The spores are alive, yes, and also the paraphyses look so. Only the asci are all dead.
Could you please send me these images in higher resolution? (zotto@arcor.de) The paraphyses are the important thing I wished to see. In Cyathicula they are always prominently multiguttulate, but here they look eguttulate. That would be a further reason not to accept the synonymy of the two genera as proposed by Dennis.
There is another species or variety, C. gramineum var. incertellum with slightly smaller spores. In both I saw long and wider, and narrow and short paraphyses.
Did you also check with IKI? The shape of apical ring is different from Cyathicula.
Zotto
For the identity I feel this group needs restudy. In Dennis 1956 Phialea incertella has spores 6-8 x 1.5-2, too small, P. stipae (= gramineum) 7-10 x 2.5-3 (with two big oil drops after carpenter), so quite good. There are more names which are possibly synonyms of the other two.
So I would identify your fungus as Crocicreas gramineum. But the three samples I have studied all have these big oil drops.
Zotto
i noticed that pore RB (lugol + water as well as lugol + KOH); it is with very slight violet tinge, but not clear blue in some asci.
