12-01-2026 22:02
Ethan CrensonHello all, I am hoping someone will have some ins
11-01-2026 20:35
Josep Torres
Hello.A very tiny pyrenomycete sprouting sparsely
13-01-2026 18:55
Rees CronceStrossmayeria sp. on indet. decroticate hardwoodTh
13-01-2026 07:57
Danny Newman
cf. Bombardia on indet. decorticate woodAppalachia
13-01-2026 10:13
Danny Newman
Cordieritidaceae sp. on indet. wood w/ Hypoxylon s
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
13-01-2026 07:14
Danny Newman
Neodasyscypha cerina on indet decorticate logThe S
13-01-2026 09:10
Danny Newman
Dasyscyphella chrysotexta on indet. decorticate ha
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
13-01-2026 08:49
Danny Newman
Coccomyces sp. on fallen Rhododendron leavesPretty
I found this 0.5 cm truffle on a stream bed.
Trees in the area are larch, Scots pine, oak and beech.
Half in the ground and half out of the ground in the Netherlands.
Ascoma: globose to slightly flattened, black. Surface covered with low warts
Peridium black, with narrow warty cortex.
Gleba hyaline composed of a gelatinous matrix of small globular cells, with yellow veins radiating
Asci: 140-160 mu x 40mu. 8 spores in the asci.
Spores: 17-22 mu with ornamentation.
Ornamentation 3-4 mu.
Sincerely,
Ronald Morsink
Truffel7-2--0001.png
a Pachyphloeus for sure. I find the key, description and fotos in Montecchi & Sarasini often not fitting collections in a satisfying way. Unfortunately, no modern key seems to be available (?).
Yours, Lothar
Thank you for your comment.
In the book Nordic macromycetes Vol1 Ascomycetes there is a key with 3 species:
P. conglomeratus, P. citrinus and P. melanoxanthus.
P. melanoxanthus comes closest to the description and findings.
Here an atricle about Pachyphloeus melanoxanthus:
https://reader.elsevier.com/reader/sd/pii/S1468164113000248?token=5D03AC4DB6330529265E7158848EA522CDF4D21C22A10B743AF2853084A655BAE24186BA101056186A9BE6CF78758785&originRegion=eu-west-1&originCreation=20221022183539
but i'm not sure
Regards,
Ronald.
The ripe spores are brownish.
Regards,
Ronald.
