Lasiosphaeria ? - Forum ASCOFrance

05-11-2025 11:33

Cladosporium ?

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.

Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?

Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Ophiobolus?

Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Tatraea sp. ? on Populus tremula

Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

Ascomycetes

David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Bright orange stalked asco

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hymenoscyphus phiala

Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Telogalla olivieri

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Rutstroemia firma

Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

« < 1 2 3 4 5 > »

Lasiosphaeria ?

Ethan Crenson, 30-01-2019 19:38

In New York City last weekend I found these tiny brown hairy pyriform fruiting bodies on a branch of hardwood. They look to me to be something near the Lasiosphaeria hirsuta complex. In fact my collection looks a lot like one from 2015 by Gernot Friebes here on ascofrance (33494). However, microscopically, there are significant differences. Is it possible that my collection contains immature spores only?

The spores are 45-55µm and often bent. They are hyaline and guttulate and do not appear to have septations. The asci have a refractive apical ring but are IKI-, measuring about 161 x 12.5µm. Hairs are thick-walled septate and around 3.7µm thick near the base.

Thanks in advance!