17-12-2019 05:50
Ethan CrensonHello everyone, I collected this in Central Park
07-12-2019 18:45
Laurens van der Linde
Hallo i found the P atrovinosa with a slime specie
13-12-2019 20:42
Götz Palfner
Bonjour tous,Sorry, but as my French is crap, I wi
16-12-2019 15:22
Valencia Lopez Francisco JavierHola a todos/asEstas pezizas estan recolectadas en
14-12-2019 10:09
Marc Detollenaere
Dear forum, On a decorticated trunk of Populu
11-12-2019 22:21
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous me confirm
dark brown Otidea
Chris Yeates,
13-12-2019 16:20
Bonjour tous
this is an area I feel rather ignorant about, rarely encountering this genus. This very dark Otidea was growing at the edge of a large garden, on soil amongst Cupressus litter, almost certainly Cupressus x leylandii. I was struck by the dark colour and initially assumed it was a Peziza. However closer examination showed it to be an Otidea, although a rather cupulate one.
Paraphyses were curved at the apex, and contained tiny granules. I noticed that a number of asci contained shrunken aborted spores which had gone brown (see photo) although whether this is of taxonomic importance I don't know. The medulla contained dark encrustations and also scattered crystals (see image, in polarised light). The "warts" on the ectal margin were made up of more dark encrustations. The ascospores measured 13.2-14.8 x 6.6-7.6µm. All photographs are of living material in water.
Reference to the Persoonia monograph has led me to Otidea bufonia, my only concern is the shape of the spores, which seem to differ from others I have seen of that species. Any comments would be welcome.
Cordaliement
Chris
Chris Yeates,
17-12-2019 01:05
Re : dark brown Otidea
Aucune idées?
François Bartholomeeusen,
17-12-2019 22:16
Re : dark brown Otidea
Hi Chris,
Compare with my finds, seems your right!
Greetings,
François
Compare with my finds, seems your right!
Greetings,
François
Josep Torres,
18-12-2019 07:18
Re : dark brown Otidea
Hola Chris, de acuerdo con la determinación, aunque yo le sigo llamando Otidea umbrina, al parecer hay diversidad de opiniones en cuanto a la denominación actual, segúm Mycobank debemos llamarla Otidea bufonia y según Index Fungorum Otidea cochleata, así que prefiero llamarla por su nombre anterior, es decir Otidea umbrina.
A esta la he estudiado hasta en cuatro ocasiones, dejo las medidas esporales de mis tres estudios anteriores, en mi último estudio aún tengo pendiente la medición de las esporas.´13,7;15,1 X 6,3;7,2, 14,4;15,2 x 6,2;6,6 y 15;16,8 X 6,6;8 micras.
Saludos cordiales.
A esta la he estudiado hasta en cuatro ocasiones, dejo las medidas esporales de mis tres estudios anteriores, en mi último estudio aún tengo pendiente la medición de las esporas.´13,7;15,1 X 6,3;7,2, 14,4;15,2 x 6,2;6,6 y 15;16,8 X 6,6;8 micras.
Saludos cordiales.
