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16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 11:20

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

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15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

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Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

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Unknown hairy conidioma on grass
Garrido-Benavent Isaac, 02-10-2014 11:14
Dear all,

This is an unknown conidioma (may be an acervulum) with long hairs that grew on a dead grass in Castro Laboreiro (Portugal).
It was about 300 microns long and 220-250 microns in height. Black, long, septate hairs covering the whole pycnidium wall (300-560 microns long and 7-11 microns wide).

Conidia hyaline, 11.6-13.7 x 2.5-2.8 microns (without appendices), and up to 26.3 microns including the appendices.

I was thinking on a Colletotrichum species but I've not literature about it.
I will appreciate any suggestion.
Thanks!

Isaac
  • message #31559
Martin Pastircak, 02-10-2014 11:41
Re : Unknown hairy conidioma on grass
It is Dinemasporium strigosum (D. graminum).

You can compare your sample with  data from next references:

Duan, J.X., Wu, W.P. and Liu, X.Z. (2007) Dinemasporium (coelomycetes). Fungal Diversity

26: 205-218.

or
Webster, J. (1955). Graminicolous pyrenomycetes V. Conidial state of Leptosphaeria michotii,


L . microspica, Pleospora vagans and the perfect states of Dinemasporium graminum.


Transitions of the British Mycological Society 38: 347-365.


With best regards,
  Martin.      



Garrido-Benavent Isaac, 02-10-2014 12:51
Re : Unknown hairy conidioma on grass
Dear Martin,

Many thanks for your answer. I've checked the keys provided in the first paper and my samples match quite well with D. strigosum.
Thanks for the literature provided!

Best wishes,

Isaac