14-01-2025 18:17
Martine Vandeplanque
Bonsoir à tous. Grande première rencontre avec
13-01-2025 20:17
Jorge HernanzBuenas tardes, adjunto datos de éste pequeño pez
14-01-2025 10:11
Margot en Geert VullingsOn a dead branch of Cryptomeria that has been lyin
10-01-2025 11:24
Wim de GrootWe found this small black spots on perennial stem
10-01-2025 18:19
Marc Detollenaere
Dear Forum,I found some colonies of orange coloure
12-01-2025 12:52
Thomas FlammerSpores cylindrical-fusiform, 7 times septated, IKI
11-01-2025 19:32
Jean-Luc RangerBonjour, je me demande si cette Helvelle ne serait
09-01-2025 20:35
Miguel Ángel Ribes
Good afternoon This small pink ascomycete, 2 mm i
10-01-2025 03:04
Masanori KutsunaHello, Does anyone have following article and cou
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