
04-07-2025 20:12
Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33
Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00
Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43
me mandan el material seco de Galicia (España)

03-07-2025 18:40
me mandas el material seco de Galicia (España) re

03-07-2025 20:08

I found this interesting yellowish asco growing on

01-07-2025 23:37
Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26
Yanick BOULANGERBonjourRécolté sur une brindille au fond d'un fo

02-07-2025 18:45
Elisabeth StöckliBonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 09:32

Hello, bonjour.Here is the paper I'm searching for

Hola a todos.
¿Podrían ayudarme a conocer la etimología de pseudobifrons?
Gracias
Rubén

"bifrons" means "with double forehead" or "with two faces". Say a species which is quite variable.
Pseudo means "false". So there must be a species named "bifrons", a similar species would be named "pseudobifrons".
Regards, Lothar


just an idea - if I understand correctly the literature, Sclerotium bifrons Ell. & Ev. (nomen nudum in exsiccate collection, described later in Saccardo's Sylloge no.14, 1899) was first described only from sclerotia, without ever knowing the apothecial stage for the next 20 years or so (see Whetzel 1940). Saccardo writes "Stromatibus sparsis, amphigeno-bifrontibus" - where amphigeno- should mean "growing equally in all directions" (according to the dictionary I have). The flat discoid sclerotia are embedded in leaf tissue and later fall out, leaving a hole behind them. So I think it might mean either that they can start growing on both sides (faces) of the leaf, or that the sclerotium itself is growing equally in all directions (so that it doesn't have always flat bottom side and only the upper one would swell). There's colored photo in Seaver 1945 but I'm not sure how to interpret it, if the sclerotium protrudes from both sides of the leaf, or if it only stays attached to upper side only. I have no personal experience with this species, alas.
Viktorie
Saccardo: https://www.biodiversitylibrary.org/item/102143#page/1183/mode/1up
Seaver 1945: https://www.jstor.org/stable/3755131?seq=1#page_scan_tab_contents
Whetzel 1940: https://www.jstor.org/stable/3754548?seq=1#page_scan_tab_contents

Gracias por su ayuda, Lothar, François, Viktorie.
Saludos
Rubén