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11-07-2018 12:54

Malcolm Storey

Here's a puzzle from a few years ago http://www.b

10-07-2018 19:52

Blasco Rafael Blasco Rafael

Hola, esta especie no se a que genero acercarme, r

09-07-2018 20:23

Blasco Rafael Blasco Rafael

Esta otra Scutellinia estaba cerca de la anterior

10-07-2018 12:32

Pedro Zapico

Chers amis,Vous trouverez dans l'onglet « Documen

08-07-2018 09:32

Per Marstad Per Marstad

Anybody know this small pyreno?  Ca. 1 mm in diam

09-07-2018 04:27

Ethan Crenson

Found today in New York City (Staten Island) in we

01-07-2018 08:03

Blasco Rafael Blasco Rafael

Hola, he recogido esta pequeña lamprospora sobre

07-07-2018 23:23

Dragiša Savic

Hi to all, I need help in identifaying.I found thi

03-07-2018 13:21

Alan Rockefeller Alan Rockefeller

I sequenced this little montane asco from a conife

07-07-2018 18:09

Riet van Oosten Riet van Oosten

Hello forum, Found 05-07-2018 in woodlane with fa

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Pop-up disco on Pinus cone
Malcolm Storey, 11-07-2018 12:54
Here's a puzzle from a few years ago http://www.bioimages.org.uk/html/Stictis_sp_nov.htm

The apothecia popped out of cracks in a the cone scales when the cone was wet but almost completely disappeared on drying.

Apothecia: elliptical in outline, gelatinous, immersed, bursting through split in surface when moist, retracting again as they dry out. Hymenium pale greyish with whitish pruina; margin darker, brownish grey.

Asci: up to 210µm, tip not bluing in iodine, with 8 ascospores in a fascicle, but not completely aligned.


Ascospores: long, cylindric, multi-septate so the numerous individual cells look more or less square. Brian Spooner reports that they disarticulate into part spores c.4µm long.


Paraphyses: thin-walled, cylindric, very narrow, dichotomously branched twice near base, strongly expanded at apex into one to several, septate, moniliform but rarely branched, agglutinated, clavate cells (4-6.5µm diam); agglutination very strongly blued in Melzer's Iodine.


Lophodermium conigenum and Naemacyclus fimbriatus: ascospores not divided enough, paraphyses wrong (as they are for Sticta spp. Also the paraphysis tips blue in iodine rather than the hymenium base)

Probably not a Stictis. Schizoxylon might be better.

Many thanks for any comments.

Hans-Otto Baral, 11-07-2018 13:16
Hans-Otto Baral
Re : Pop-up disco on Pinus cone
Yes, Schizoxylon seems good, but the genus is difficult.
Malcolm Storey, 11-07-2018 15:35
Re : Pop-up disco on Pinus cone
That was quick! Many thanks Hans-Otto.