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04-06-2026 23:53

Stip Helleman Stip Helleman

Dear all, someone can get acces to this article f

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

19-05-2026 10:27

Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

04-06-2026 18:39

Gernot Friebes

Hi,I collected this species in two different locat

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

04-06-2026 15:28

Tony Cumberlidge

I have recently found the very helpful European Ke

04-06-2026 10:50

François Freléchoux François Freléchoux

Bonjour, J'ai trouvé hier un petit asco observé

04-06-2026 07:02

François Freléchoux François Freléchoux

Bonjour, Voici la description d'une espèce qui p

04-06-2026 13:34

Gernot Friebes

Hi,I am interested to hear your opinion on this Le

04-06-2026 11:14

Philippe PELLICIER

Bonjour, Sur bois mort de conifère (Larix, Pinus

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Scutellinia colensoi?
Juuso Äikäs, 31-07-2020 21:08
I found some Scutellinias a couple days ago on a well-rotted tree trunk. 

The hairs are max. 1350 µm long and 35 µm wide. Most of them are septate but there are some long, aseptate hairs as well. 

The spores don't have a loosening perispore in heated CB, and the measurements are:

(16.5) 16.7 - 18.2 (18.4) × (10.7) 10.8 - 11.3 (11.8) µm
Q = (1.5) 1.51 - 1.65 (1.7) ; N = 15
Me = 17.4 × 11.1 µm ; Qe = 1.6.

Using Jeannerot's key I arrived at S. colensoi but am not entirely sure if this is the right species. Other opinions are welcome.
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Viktorie Halasu, 31-07-2020 21:53
Viktorie Halasu
Re : Scutellinia colensoi?
Hello,

did you compare with S. vitreola too? The warts look more isolated and angular, than those colensoi-like ridges, also hairs are much too short for colensoi.  

Best regards, 
Viktorie
Juuso Äikäs, 31-07-2020 22:21
Re : Scutellinia colensoi?
Thanks for the opinion.

The spore size would fit S. vitreola and the ornamentation looks pretty good to me too, but according to the info I found, the hairs are too long for that species!
Viktorie Halasu, 01-08-2020 09:16
Viktorie Halasu
Re : Scutellinia colensoi?
Regarding the hair length:
* (340)370-570(640) um (original description in Kullman 1982, based on two collections)
* 225-975 um (Matocec et al 1995, based on five collections)
* 300-900(1100) um (Schumacher 1990, based on holotype and 9 norwegian colls.).
In my opinion, it's still the same kind (group) of hairs, 3-4-multifurcate base and length somewhere between 800-1200 um. Kullman wrote 1-2-3-many roots, that is ok, perhaps she just found a deviating specimen with shorter hairs. I've seen several half-mature collections of S. crinita with multifurcate and branched hair base, but hair length < 1000 um.
S. colensoi, pennsylvanica and partly S. trechispora are in another group, with hairs up to 2000 um (or sometimes exceeding).

I'm more concerned about the spore shape, vitreola should have Q like scutellata, i.e. around 1,7-1,8. Mato?ec et al wrote about "two types" of vitreola found by them, with narrower or broader spores respectively. Hopefully someone here has more experience with the species than me.