28-03-2015 22:50
Cvenkel MiranAttached image - sorry ascofrance automaticaly dow
28-03-2015 23:30
Andreas Gminder
Hallo dear collegues, in MYCOTACON 93, 2005 Kucer
28-03-2015 19:55
Alex Akulov
Dear friendsCan you help me to deal with unclear P
28-03-2015 00:09
Jenny Seawright
Hello all, This was found on a dead Eupatorium ste
27-03-2015 16:34
Joaquin MartinHiPyrenomycete found on Quercus wood, I have very
25-03-2015 21:09
Bernard CLESSE
Bonsoir à tous,Très heureux de rejoindre votre f
26-03-2015 20:04
Enrique Rubio
I'd like to know your opinion about this Mycosphae
Please could you help me with this small asco found on bare soil with bryophytes and plant remains.
Light brown apothecia with darker rim and paler short stipe 0.3-0.4 mm diameter, 0.5 high. Excipulum textura globulosa at the base, textura prismatica at the rim, cells brown 25-30 x 7 microns at the rim.
Asci cylindrical with flat apex, J-ve, 160 x 10microns, croziers not seen. Cuboidal crystals amongst the asci.
8 spored uniseriate, spores elliptical to fusiform with blunt ends, hyaline, cyanophilous, small guttules clustered at each pole. Some spores septate. 16-19 x 5-6.6 microns.
Paraphyses septate and branching, cylindrical, 132 x 5 microns.
I have struggled to get to Genus, maybe Graddonia, Mollisia, finally after asking for help and being directed to Zotto's Rutstroemia fulva notes I think it could be around this area.
Help please.
Pauline
Bonsoir Pauline,
Rutstroemia is a good choice.
I would have thought of R. calopus but this species should be with croziers.
2 other taxons are close R. maritima and R paludosa.
Note that Zotto has transferred the former Rutstroemia species into the genus Clarireedia.
I wonder whether the combinations in Clarideedia have been published ?
Amitiés. Michel
Thank you for pointing me to these species . I have today looked more closely at Zottos amazing notes and photographs. I have some questions still.
best wishes
Pauline
Your website is truly a wonder! I have looked closely at the species suggested and also examined my last remaining specimen, now in poor condition.
I think I can see a crozier but the asci are all so compressed at the base it is not easy.
I feel it most closely matches R.maritima, blunt apex of the asci, IKI-, spore oil droplets at either end, crystals amongst the asci and I too found spores in the ascus with a clear sheath around them.
However it was growing on soil with grasses and mosses, no Ammophila present, though it was on the coast. Are Rutstroemias host specific?
Many thanks
Pauline
Thanks Zotto for the taxonomic evolution detail .
Michel
Best wishes
Pauline