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10-10-2025 00:49

Amicodisca svrcekii ?
Ethan Crenson

Hello all, This was found last weekend on a hardw

09-10-2025 22:14

Hymenoscphyus or Bryoscyphus? Yellow cup / white stipe
S. Rebecca

We just had the Bavarian Mycology Conference in Au

06-10-2025 15:57

Lophiostoma
David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Unknown asco found in a root hole
Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

05-10-2025 16:41

Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen

Dear forum members, On a mat of dried algae/liche

04-10-2025 02:17

small disco
Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 10:25

chaetomium sp sur crotte lapin
Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

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Bisporella sulfurina?
William Slosse, 11-03-2017 21:28
William SlosseI always find it hard to distinguish citrina from sulfurina.
Am I right that this one is sulfurina?

° Matured spores with mostly 4 oildrops and one septated / 10.54x2.98mu
° asci with no croziers
° growing in clusters

Thx in advance,

William
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Hans-Otto Baral, 11-03-2017 21:42
Hans-Otto Baral
Re : Bisporella sulfurina?
It is not easy to confuse these two species! What you show is clearly B. sulfurina (or now Calycina claroflava). When you apply Lugol you will not see an amyloid apical ring whereas B. citrina (Calycina citrina) reacts blue or dirty red at higher concentration.