13-06-2025 09:41
Josep Torres
Hello.A cerebriform ascomycete sprouting scattered
21-07-2025 19:22
Ethan CrensonHello all, Here is an Orbilia found by a friend
14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
18-07-2025 23:03
Josep Torres
Hello.Fruitings between 51 and 130 microns in tota
16-07-2025 17:34
Bernard Declercq
Hello,I have trouble distinguishing above mention
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
Bryostroma trichostomi
Georges Greiff,
20-06-2018 15:55
Unknown ascomycete on the moss Trichostomum crispulum found twice in South England. Hopefully somebody on here will have some ideas on the ID. Here it is stained in I. Struggled to find spores in the past but managed to find some in today's asci. Sample from January 2018.
Perithecia black, up to 1mm wide. A random ascus measured 115 x 23 but some seemed distorted. Asci 8-spored, I+ inner compartment, tip differentiated. Ascospores 26.00-32.76 x 7.5-9.1, smooth-walled, 1(2?)-septate, large guttules present. Paraphyses richly branched, filamentous, 1 wide.
Thanks,
EDIT: happy with the suggested ID of Bryostroma trichostomi.
Pascal RIBOLLET,
22-06-2018 11:19
Re : Unknown Bryoparasitic Fungus
Hello,
Could be a Bryostroma (see Döbbeler, Mitteilungen aus der Botanischen Staatssammlung München 14: 184 (1978). The host fits B. trichostomi...but your spores seem too small (Döbbeler : 40-55 x 7-9 µm), unless they're note fully mature.
Bryostroma axillare have smaller spores but different hosts (Barbula, Ditrichum)...
Good luck !
Pascal
Could be a Bryostroma (see Döbbeler, Mitteilungen aus der Botanischen Staatssammlung München 14: 184 (1978). The host fits B. trichostomi...but your spores seem too small (Döbbeler : 40-55 x 7-9 µm), unless they're note fully mature.
Bryostroma axillare have smaller spores but different hosts (Barbula, Ditrichum)...
Good luck !
Pascal
Georges Greiff,
22-06-2018 17:34
Re : Unknown Bryoparasitic Fungus
Hi Pascal,
I think you are absolutely correct with Bryostroma trichostomi so thank you very much. My initial examination of fruits in Jan showed only immature asci with no spores in them - they probably began to develop whilst the specimen was in storage but still no spores were liberated so I could only measure from some of the more developed asci (most were still not mature as you can see in the 400X picture). I will keep an eye out for this in the field in the spring to try to get more mature specimens.
Thanks again.
George