
30-06-2025 16:56
Lydia KoelmansPlease can anyone tell me the species name of the

01-07-2025 23:37
Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57
Ethan CrensonHi all, Another find by a friend yesterday in Bro

30-06-2025 14:45

This is a quite common species on Nothofagus wood

25-06-2025 16:56
Philippe PELLICIERBonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11
Ethan CrensonHello all, A friend found this disco yesterday in

28-06-2025 16:00
Hello.A tiny fungus shaped like globose black grai

Dear friends,
here is another collection from Ethiopian mountain rain forest.
I think it is Cookeina colensoi, especially as the shape and size of the spores don't leave much alternatives,or does it?
The apothecia are approx. 1-1,5 cm in diameter, centrally stipitate by a short and thin, but well develloped stipe. The stipelength is approx. half of the cup diameter. Hymenium color is alutaceous, comparable to the hymenium of Tarzetta. The exterior is paler, nearly whitish. The margin is finely crenulate to fimbriate.
Spores are somewhat fusoid, not symetrical, 33-42 x 10-12 µm, smooth, and with knob-like protrudings at each spore end. These protruding can grow up to 2-3 µm in diameter. It seems that they devellop with spore maturity and may be they are a kind of germination of the spore?
Has someone experience with Cookeina colensoi and can confirm the determination (or cancel it ....)
I have the paper of Moravec, where SEM fotos of the spores are illustrated, showing them as being finely rugulose. I couldn't observe this in my material in light microscope.
best regards,
Andreas

i think this is the best choice! but i would exlude possible striation in cotton-blue because of p. venezuelae, which has also long, narrow spores with apiculi.
best
dirk