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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

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

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

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

03-11-2025 19:41

David Chapados David Chapados

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

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

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

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Ionomidotis irregularis ?
Ethan Crenson, 26-09-2019 05:23
Hello all,

I was on a walk last Sunday in the Bronx, NYC where a friend of mine found a very interesting asco.  It has a black fertile surface.  The outer surface is scurfy and dark brown.  It is rather thin and papery, especially after drying. It was growing on deciduous wood.  Asci that I measured were 70-73 x 6.5-7.5µm.  Spores are hyaline, biguttulate, ellipsoid and 7-10.5 x 3-4µm.  Paraphyses are lanceolate, septate, they enlarge to about 4µm at the widest point.  Many of the heads of the paraphyses became detached.  I applied KOH and noticed that there was an exudate of dark red pigment.  It also appears to be bitunicate.  (Unfortunately I am having problems with my image capture equipment, so I don't have the best documentation of all of these features).  Is this Ionomidotis irregularis? 

Many thanks in advance for your help.

Ethan
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