Spores with setulae - Forum ASCOFrance

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Spores with setulae

Stefan Blaser, 17-07-2020 14:01

Dear all,

I hope someone can help me with this collection:

Substrate: Corticated hardwood twig, possibly Lonicera

Description:

Apothecia 0.2-0.5 mm in diameter, of variable shape but often oblong to slit-like, disc light brownish-translucent with a black cover that tears open to expose the disc.
Asci 31-40(50) x 14-16 µm, saccate, IKI negative. Ascospores 12-15 x 5-6 µm, 1-septate, hyaline, one cell slightly wider than the other, mostly weakly constricted at the septum, both cells with a large oildrop. At both spore ends there are two setulae of about 5-9 µm in length. Paraphyses not observed.

Many thanks for any ideas,

Stefan