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These tiny (0.4-0.5 mm diam.), whitish, short-stip
Nectria-like fungus on herbaceous stems
Enrique Rubio,
25-04-2017 20:54
Hi to allThis fungus was collected at Somiedo (1350 m) on herbaceous stems, perhaps of Umbelliferae. It makes subepidermial orange perithecia KOH negative 0.2-0.4 mm, with only the obtuse papilla raising the periderm of the host. I think they are glabrous, the hairs we can see maybe belong to the stem host.
The ascospores are smooth, 1-septate, with conspicuous large lipid content. The asci have a conspicuous, refractive, cianophilou, Melzer negative apical apparatus.
Have you some idea? Could be a Nectriella species?
Many thanks in advance
Christian Lechat,
26-04-2017 05:03
Re : Nectria-like fungus on herbaceous stems
Hi Enrique,
I think you are right, it is Nectriella dacrymycella (Nyl.) Rehm
All the best,
Christian
I think you are right, it is Nectriella dacrymycella (Nyl.) Rehm
All the best,
Christian
Enrique Rubio,
26-04-2017 08:45
Re : Nectria-like fungus on herbaceous stems
Hi Christian
Many thanks again
Are common these large LBs in the ascospores?
Many thanks again
Are common these large LBs in the ascospores?
Christian Lechat,
26-04-2017 09:02
Re : Nectria-like fungus on herbaceous stems
yes Enrique, there are usually many droplets in the ascospores
Christian
Christian