18-12-2025 21:17
Pol DebaenstThe identification took me to Byssonectria deformi
15-12-2025 07:09
Danny Newman
indet. Rutstroemiaceae sp. on unk. fallen leavesMc
19-12-2025 10:10
Patrice TANCHAUDBonjour, récolte réalisée en milieu dunaire, a
18-12-2025 17:23
Bruno Coué
Bonjour,je serais heureux d'avoir votre avis sur c
18-12-2025 18:07
Margot en Geert VullingsThese plumes were found on rotten wood.They strong
17-12-2025 18:35
Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
15-12-2025 15:48
Danny Newman
Melanospora cf. lagenaria on old, rotting, fallen
15-12-2025 15:54
Johan Boonefaes
Unknown anamorph found on the ground in coastal sa
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