20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
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:
Scutellinia nigrohirtula complex 090724
Miguel Ángel Ribes,
19-07-2024 11:08
Good morningThis Scutellinia from July 9 grew at 1,400 m in Santa Mª de la Alameda (Madrid) among mud and plant debris.
Ascospores with a Q <1.8, with ornamentation in the form of small tubercles measuring 1-1.3 x 0.5-0.7 microns (width x height), without forming reticulum or ridges.
Hairs of the margin of 1000 microns (800-1200), all with a simple base, not even one with a bifurcated base, much larger than the hairs at the base, which maintain the same morphology. The ornamentation could be similar to S. subhirtella, but this one has hairs with a bi-trifurcate base.
Live spore measurements in water: (20.5) 21.4 - 23.1 (23.6) × (13.2) 13.5 - 14.5 (15.1) µm; Q = 1.5 - 1.7 (1.8) ; N = 52; Me = 22.2 × 14 µm; Qe = 1.6
Hairs in water: (831.3) 843.9 - 1095.6 (1258.9) × (19.7) 23.8 - 32 .5 (38.9) µm; N = 24; Me = 1024.4 × 28.4
With Beñats's key I arrive to S. nigrohirtula, but I have doubts about S. subhirtella.
Thanks in advance.
MIguel Ángel Ribes
Nicolas VAN VOOREN,
19-07-2024 11:13
Re : Scutellinia nigrohirtula complex 090724
Hairs too long for nigrohirtula...
Viktorie Halasu,
19-07-2024 12:40
Re : Scutellinia nigrohirtula complex 090724
Interesting collection. Also the ornamentation is too high for nigrohirtula, IMO. Can you try to observe the hair base from inside? Squash mount, perhaps in KOH, flat section turned with the hair downward. It's rather unusual for such a long hairs not to have at least 2 roots.
There is S. aff. patagonica documented from Korea (doi: 10.1127/0029-5035/2013/0120) which has similar ornamentation, Q, hair length, somewhat smaller spores (attached screenshot).
There is S. aff. patagonica documented from Korea (doi: 10.1127/0029-5035/2013/0120) which has similar ornamentation, Q, hair length, somewhat smaller spores (attached screenshot).
Miguel Ángel Ribes,
19-07-2024 14:00
Re : Scutellinia nigrohirtula complex 090724
Ok, thanks Nicolas and Viktorie, I will study the hairs again.
That S. aff patagonica is really similar.
Anyway, in the photos of the hairs that I sent you can clearly see that in the margin there are 2 types of hairs, some up to 1000 microns long and others practically half as long. Then, underneath, are the flank hairs, which are even smaller.
That S. aff patagonica is really similar.
Anyway, in the photos of the hairs that I sent you can clearly see that in the margin there are 2 types of hairs, some up to 1000 microns long and others practically half as long. Then, underneath, are the flank hairs, which are even smaller.
Miguel Ángel Ribes,
19-07-2024 18:54
Re : Scutellinia nigrohirtula complex 090724
You were right, colleagues.
I have done preparations again and I do see hairs with a forked base. I suppose that in the previous sample I was unlucky and took hairs from an underripe specimen. With this new data then we are faced with a S. subhirtella, although with slightly mature spores, it is assumed that the ornamentation should be larger, at least in width.
Thanks a lot.
Miguel Ángel Ribes.
I have done preparations again and I do see hairs with a forked base. I suppose that in the previous sample I was unlucky and took hairs from an underripe specimen. With this new data then we are faced with a S. subhirtella, although with slightly mature spores, it is assumed that the ornamentation should be larger, at least in width.
Thanks a lot.
Miguel Ángel Ribes.
Malcolm Greaves,
21-07-2024 00:32
Re : Scutellinia nigrohirtula complex 090724
I would also add that S patagonica is described as having spores much like umbrorum ie broadly ellipsoid unlike your find. I think subhirtella is a definite option
Miguel Ángel Ribes,
21-07-2024 10:32
Re : Scutellinia nigrohirtula complex 090724
Thank you Malcolm, S. subhirtella definitively.