23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623
15-10-2025 16:39
Edvin Johannesen
These tiny (0.2-0.6 mm), white, pulvinate apotheci
03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,
11-10-2025 20:27
Marcel Heyligen
Found on a barked branch, 14 mm in diameter, of Ro
09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au
10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
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.
