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25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

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Chlorosplenium Question
Danny Newman, 24-10-2016 19:36
Danny NewmanHello AscoFrance,

I write again on behalf of Mushroom Observer, which is always in great need of more ascomycete expertise, and always grateful for what expertise it has already received. The latest debate is here:

http://mushroomobserver.org/253206

Michael Kuo, an American amateur and creator of the website MushroomExpert.com, describes Chlorosplenium chlora and C. hypochlora as being macroscopically indistinguishable from one another. The descriptions of each species in Dixon, J.R. 1974. Chlorosplenium and its segregates. I. Introduction and the genus Chlorosplenium. Mycotaxon. 1(2):65-104 (http://www.mykoweb.com/systematics/journals/Mycotaxon/Mycotaxon%20v001n2.pdf) do contain some differences, but in the notes for C. hypochlora, that species is said to only differ "on drying and in ascus and spore characters."

Are the two species in fact macroscoically indistinguishable? Are their distributions/seasons/substrates separate or overlapping?

Many thanks in advance,

-Danny
Hans-Otto Baral, 25-10-2016 09:57
Hans-Otto Baral
Re : Chlorosplenium Question
Images of Chl. chlora you can find in my folder:
https://drive.google.com/drive/folders/0B5SeyOEkxxZhYVBtRGpVc2Q5M0k

Chl. hypochlora I do not know, but it seems to have distinctly longer spores (up to 15 instead of 9 µm).

The macros on your link can be everything, including Calycina (Bisporella) claroflava.