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20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Buckwheat Pete

Hello, I'd like to ask about this older specimen:

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Hyaloscypha albohyalina?
Ethan Crenson, 17-01-2020 23:49
Hello again,

I found this in a NYC park on very wet, rotted hardwood.  I believe it's Hyaloscypha.  The cups tiny white, glassy and very fragile and fringed with white hairs. Asci are 38-45 x 7µm, IKI+, without croziers (but again, please check my photos to be sure, as I am sometimes wrong).  Spores are 7-9 x 2.5-3, fusiform, hyaline, some with minute guttules. Hairs usually septate, tapering to a rounded end, or with a ball at the end, also sometimes with some exudate encrustations toward the apex, 46-50 x 3-4 (at the base) µm.  Paraphyses cylindric, narrow the tips about 2µm.  I don't know a lot about this genus, so any help would be appreciated.

Thank you,

Ethan
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Hans-Otto Baral, 18-01-2020 06:40
Hans-Otto Baral
Re : Hyaloscypha albohyalina?
Hi Ethan

couldn't this be softwood? The rather broad hair tips and the yellow resin on them, together with croziers and amyloid ring clearly point Hyaloscypha aureliella.

Zotto
Ethan Crenson, 18-01-2020 15:34
Re : Hyaloscypha albohyalina?
Zotto,

There are so few conifers in New York that my default position is often hardwood.  In this case I suppose this may be conifer.  When you mention yellow resin, are you looking at the photos of the hairs in water or the one I took in IKI?  The mounts in water are a lot more neutral looking, but maybe you see something that I don't.

Thanks,

Ethan
Hans-Otto Baral, 18-01-2020 15:37
Hans-Otto Baral
Re : Hyaloscypha albohyalina?
You are right, it is the IKI photo that mislead me - anyhow the resin of H. aureliella may also be hyaline, I think it is this species. Conifer wood is easily recognized from a look on the cross section.