Hello,
I found this Peziza 10 days ago, in a mixed forest. Because of the blueish milk I arrived in keys to P. badiofusca, but the spores are a bit narrower and often have 2 LBs instead of one. E. Rubio has also a collection (ERD-6339) with about a half of the spores biguttulate, in my find it was maybe even more. Furthermore, it should be an autumn species. 

Excipulum not differentiated, globulose cells mixed with narrow hyphae throughout. 
Paraphyses straight, only a little enlarged. I didn't see the distinct brown pigment sticking on paraphyses, only little amount of light yellow-brown one. But the apothecia were under thick trees, probably didn't see direct sunlight, so it might be similar situation like with P. limnaea. 
Asci pleurorhynhous.
Spores from sporeprint, in LACB: 13,6-15,3 × 7,4-8,1 (8,4) um, Q = 1,7-1,9-2.

Is it still within the variability of P. badiofusca, or is it another species? I didn't find much descriptions of this species - is it so rare or just overlooked (or maybe confused with P. saccardoana and atrospora)? 
Thank you in advance.
Viktorie