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13-01-2026 09:10

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Nectria-like fungus on herbaceous stems
Enrique Rubio, 25-04-2017 20:54
Enrique RubioHi to all
This 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
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  • message #48615
  • message #48615
  • message #48615
Christian Lechat, 26-04-2017 05:03
Christian Lechat
Re : Nectria-like fungus on herbaceous stems
Hi Enrique,
I think you are right, it is Nectriella dacrymycella (Nyl.) Rehm

All the best,
Christian
Enrique Rubio, 26-04-2017 08:45
Enrique Rubio
Re : Nectria-like fungus on herbaceous stems
Hi Christian
Many thanks again
Are common these large LBs in the ascospores?
Christian Lechat, 26-04-2017 09:02
Christian Lechat
Re : Nectria-like fungus on herbaceous stems
yes Enrique, there are usually many droplets in the ascospores

Christian