Found on cow dung. At first I was thinking about S. pulchella but measurements did not cope with the discription in "Revision of Sporormia and Sporormiella" 1972 Ahmed & Cain CJB Vol. 50, 456/457. Interesting was that they only appeared close to or on the surrounding dung of Podospora pyriformis. (photo-1, where you observe the necks of the species next to the ostiole of P. pyriformis bursting out of the dung surface)

Perithecia: 173-186 um in diameter, with a neck of 95x40 um.
Asci: 8-spored; at first 74-83x8.4-8.85 um; expanding in water 90-100x9.3-9.65 um; with a long stalk.
Spores: multi serial; 17-18.5x3.0-3.55 um; 2nd cell has a width of 3.9-4.4 um; end cells longer then mid-cells; transverse septa; straight or slightly curved; with an oblique to diagonal germ slit

Norbert Heine, 18-03-2016 18:18

Re : Unknown sporormiella

Hello Joop,

I've never heard about a Sporormiella with such small spores!
Are you sure, that your measurements are right?

Regards
Norbert

Joop van der Lee, 18-03-2016 22:17

Re : Unknown sporormiella

Yes I am sure Norbert.

I do have them in collection, when they are still there do you want me to send you some for confirmation?

 

Joop

 

 

Norbert Heine, 18-03-2016 22:29

Re : Unknown sporormiella

Yes, of course!
I'm interested very much, Joop!

Norbert

Michel Delpont, 19-03-2016 09:09

Re : Unknown sporormiella

Sporormiella nigropurpurea approaches the species introduced by Joop, but I do not know this species. Very interesting!
Like us informed Norbert! Thank you!

Michel.

Joop van der Lee, 28-03-2016 11:40

Re : Unknown sporormiella

Hello Michel,

 

I did find some new species yesterday and I will send them to Norbert together with the Cercophora species of which I think it is C. sordariodes with 5 septa instead of 1.
I also looked in Revision of Sporormia and Sporormiella by  Ahmed & Cain and found S. dakotensis very close to the dimensions of this species.
Probably some of the measurements I have made of spores are from immature spores but the find of yesterday were 20-5-21.5x 3.5-3.8 um and asci 80-90x9-9.5 um whereby the stipe measured between 18 and 21 um, against 100-120x9-11 um by Cain with a stipe length of 45 um. Germ slit parallel to oblique.

 

Norbert Heine, 02-04-2016 13:34

Re : Unknown sporormiella

Hello Joop,

thank you for sending this interesting Sporormiella.
I found only one pseudothecium with overripe asci, but I could observe some ascospores.
The measurements are nearly the same like yours. 17-20 x 2,5-3(4)µm.
Germ slits were to be seen difficult, but I could find some parallel until slightly oblique.

I'm sure, that this species is
Sporormiella minutisperma Doveri & Coué,
which was described in 2008!

I have to change my private key!

Congratulation to this special finding!

Regards
Norbert

• Doveri-amp-Coue-Sporormiella-minutisperma-Bull.-Mycol.-Bot.-Dauphine-Savoie-191-2008-0001.pdf

Michel Delpont, 02-04-2016 18:19

Re : Unknown sporormiella

Norbert thank you for that clarification; I had not thought of that species, unknown to me, although I had the documentation. I'd be interested in your key updating, if possible.
Thank you.
Michel.