07-02-2026 20:30
Robin Isaksson
Hi!Anyone that have this one and can sen it to me?
25-01-2026 23:23
Tomaz Vucko
Hello! I found this species that resembles Delitsc
05-02-2026 15:07
Vasileios Kaounas
Found on a fallen needle of Pinus halepensis, diam
05-02-2026 06:43
Stefan BlaserHello everybody, Any help on this one would be mu
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
Holland, 07-09-2019. In riverclay area on soil (old piece of riverbank). Apothecium yellowish/greenish, darkening into brown when older, largest 2,5-3 mm. Asci clavate, 155-190 x 18-20, no Meltzer reaction (J-).Spores mature deep purple, young hyaline. I think I saw very fine granulation in the young spores, as well as fine warts. Mature spores with fissures/reticulated, 19-21 x 10-13.
Paraphyses slender, longer than the asci, yellow(ish). Septated, sometimes forked, with a slightly swollen top (not all of them).
Following van Brummelen I came to Ascobolus geophilus, but maybe I'm very wrong :)
What is your opinion? Thanks in advance!
Interesting! It is sometimes difficult to separate certain species of this genus. Compares with A.behnitziensis near geophilus. According to Dissing, geophilus spores are later adorned ornamented, unlike behnitziensis. Also try to make other preparations in the Melzer showing the asci; you say negative Melzer whereas normally the reaction must be positive.
Michel.
van Brummelen states that only very young asci are amyloid in A. behnitziensis - i.e., the blueing might be visible only in lower part of the hymenium, see here: https://www.nahuby.sk/obrazok_detail.php?obrazok_id=606132
Cheers,
Viktorie
Michel, what I read in van Brummelen about geophilus:
Asci cylindric-clavate, tapering
downwards, rounded above, 160-200 X 17- 20 p. (according to Seaver rgr6, I.e.:
"200-250 X 15- 18 p,"), 8-spored; the wall not, or scarcely, blue in Melzer's reagent.
So I am now a bit confused?