19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
Hymenoscyphus lutescens ??
Casares Pablo,
01-08-2011 16:22
Apothecia cup shaped to disc shaped of 2 mm across, stipitate, hymenium and outer surface yellow or pale yellow.
Asci with crosiers, unitunicate-inoperculate, with blue apical ring in IKI, 115-122 x 8,5-10 µm, in water, from fresh material and 1000x.
Spores fusiform-allantoid, smooth, with guttules, 14.9 [16.3 ; 17.3] 18.7 x 4.2 [4.7 ; 5] 5.5 µm; Q = 2.8 [3.3 ; 3.6] 4.1 ; N = 20 ; C = 95%; Me = 16.82 x 4.86 ; Qe = 3.48, in water, from fresh material and 1000x.
Paraphyses cylindrical, with abundant guttules, septate under guttulated zone.
Any idea??
Thanks
Hans-Otto Baral,
01-08-2011 16:33
Re : Hymenoscyphus lutescens ??
Hi Pablo
H. lutescens is a species of coniferous substate, I know it from cones. Your fungus has distinctly scutuloid spores (apex recognizable, with lateral protrusion), at least partly, a feature never seen in H. lutescens. Also the oil content is lower in H. lutescens.
I think it fits well in H. subferrugineus, a taxon very close to H. calyculus. A plurivorous species, especially abundant in montaneous areas.
The H. calyculus group has apothecial stipes usually longer than wide, whereas H. lutescens is a member of the H,. epiphyllus group, which has the stipe not longer than wide. How is the stipe in your specimen?
Zotto
H. lutescens is a species of coniferous substate, I know it from cones. Your fungus has distinctly scutuloid spores (apex recognizable, with lateral protrusion), at least partly, a feature never seen in H. lutescens. Also the oil content is lower in H. lutescens.
I think it fits well in H. subferrugineus, a taxon very close to H. calyculus. A plurivorous species, especially abundant in montaneous areas.
The H. calyculus group has apothecial stipes usually longer than wide, whereas H. lutescens is a member of the H,. epiphyllus group, which has the stipe not longer than wide. How is the stipe in your specimen?
Zotto
Casares Pablo,
01-08-2011 18:19
Re : Hymenoscyphus lutescens ??
Really. The stipe measures are 1,3-1,7 x 0,5-0,6 mm.
It is collected in Picos de Europa last week.
Is it possible that it grows on the wood of Ilex aquifolium?
It is collected in Picos de Europa last week.
Is it possible that it grows on the wood of Ilex aquifolium?
Thanks Zotto
Hans-Otto Baral,
01-08-2011 20:32
Re : Hymenoscyphus lutescens ??
That is well possible. The species was recorded even on Picea, also Ribes alpinum, Fagus, Crataegus, Corylus etc.
Zotto
Zotto