29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
10-05-2026 16:18
brigitte vignotbonjour trouvée en Ariège sur bois une petite
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
27-04-2026 17:16
Lothar Krieglsteiner
.. Algarve, moist lying.The conidiomata look like
10-05-2026 09:02
Buckwheat PeteHello everybody, ould this be Lachnum subvirgineu
08-05-2026 11:55
Gernot FriebesHi,found on a decorticated Picea abies branch stil
11-05-2016 20:37
Zuzana Sochorová (Egertová)
Hi,this very little ascomycete grew on soil in a m
09-05-2026 07:37
Zuzana Sochorová (Egertová)
Hello,please, could anyone share this paper?Ferná
acrspermum
Didier ARGAUD,
04-01-2007 14:12
Connaissez-vous l'espèce suivante: cf photo
C'est un acrospermum mais lequel, il semble different (macroscopiquement) de compressum, que je connais déjà. La microscopie semble la même.
Substrat: herbacées mais pas sur ortie.
Est ce graminum ? ou autre?
Didier
Björn Wergen,
14-01-2007 14:21
Re:acrspermum
Dear Didier,
I know about three species in the genus Acrosperum: A. compressum, A. graminum and A. pallidulum. All three are hard to determine because they have nearly the same characteristics.
A. compressum usually grows on old stems of Urtica and is 2-4 mm high, with a grey-brown surface. Spores are about 400 µm long.
A. graminum grows on little stems of graminaceen and has smaller fruitbodies (1-2,5 mm). The color is brownish, pale-brown.
A. pallidiulum also has pale-brown fruitbodies but spores around 300µm long and grows on dead stems of "Galium". I just know this species from literature but didn't find it in nature yet.
Differences are flowing into each other and it would not surprise me, if there are only 2 species instead of three or more (I do not know about others...).
Greetings,
Kaz
I know about three species in the genus Acrosperum: A. compressum, A. graminum and A. pallidulum. All three are hard to determine because they have nearly the same characteristics.
A. compressum usually grows on old stems of Urtica and is 2-4 mm high, with a grey-brown surface. Spores are about 400 µm long.
A. graminum grows on little stems of graminaceen and has smaller fruitbodies (1-2,5 mm). The color is brownish, pale-brown.
A. pallidiulum also has pale-brown fruitbodies but spores around 300µm long and grows on dead stems of "Galium". I just know this species from literature but didn't find it in nature yet.
Differences are flowing into each other and it would not surprise me, if there are only 2 species instead of three or more (I do not know about others...).
Greetings,
Kaz
Didier ARGAUD,
14-01-2007 21:06
Re:acrospermum
Merci pour la réponse
Didier
Didier