26-12-2025 21:19
Arnold BüschlenPithyella chalaudii Priou. Ist als Bryoparasit in
21-12-2025 09:32
Hello.A tiny ascomycete found embedded in wood in
18-12-2025 21:17
Pol DebaenstThe identification took me to Byssonectria deformi
24-12-2025 17:08
Hulda Caroline HolteHello, I have found this propoloid ascomycete on
21-12-2025 21:32
Pol DebaenstHello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1
Bisporella citrina??
William Slosse,
09-02-2016 20:32
growing on fallen dead branches of birch in old dunearea.
Hans-Otto Baral,
09-02-2016 20:51
Re : Bisporella citrina??
I think it is Calycina (earlier Bisporella) clariflava (= Bisporella sulfurina)
If you check the iodine reaction it should be negative. C/B. citrina has larger spores and amyloid asci.
If you check the iodine reaction it should be negative. C/B. citrina has larger spores and amyloid asci.
William Slosse,
09-02-2016 21:43
Re : Bisporella citrina??
Thx for your reaction, Hans-Otto.
I'm new on this forum, but very pleased with this quick response.
I have still a fresh specimen in collection and I will check the reaction with Meltzer's reagens.
I found not a (good) key to convince me if it's citrina or sulfurina so I thought why not putting the question on this forum.
Nice to become some very interesting information from experts.
Hans-Otto Baral,
09-02-2016 21:54
Re : Bisporella citrina??
You could also try to check the ascus base: citrina with croziers, claroflava without, but it is not easy.
Btw, it is better to use Lugol/IKI for testing ascus reactions.
http://invivoveritas.de/articles/iodine-reaction-in-ascomycetes-why-is-lugols-solution-superior-to-melzers-reagent/
best regards
Zotto
Btw, it is better to use Lugol/IKI for testing ascus reactions.
http://invivoveritas.de/articles/iodine-reaction-in-ascomycetes-why-is-lugols-solution-superior-to-melzers-reagent/
best regards
Zotto
William Slosse,
09-02-2016 22:35
Hans-Otto Baral,
09-02-2016 22:42
Re : Bisporella citrina??
no, but on the left of your pic I see a bit unsharp that croziers are absent (asci are "simple-septate").
William Slosse,
09-02-2016 22:52
Re : Bisporella citrina??
Thx for all your info, Hans-Otto, very instructive for me!






