10-06-2026 21:16
François Freléchoux
Bonsoir,Le dernier du jour, en attendant votre avi
11-06-2026 19:01
William Slosse
Hello all,In an attempt to make a culture of a sus
11-06-2026 19:03
Nicolas VAN VOOREN
Chers membres d'Ascofrance,Le site sera placé en
09-06-2026 18:32
Camille MertensSur morceau de roseau immergé 0,5 - 0,7 mm de dia
10-06-2026 12:54
Steve ClementsBonjour encore, Pouvez-vous m'aider, s'il vous pl
10-06-2026 21:07
François Freléchoux
Toutes les tiges de gentianes jaunes de l'an pass
10-06-2026 13:41
François Freléchoux
Bonjour à nouveau, Voici une trouvaille d'hier.
10-06-2026 11:53
Steve ClementsBonjour, This disco is abundant on dead stems of
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.