03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,
11-10-2025 20:27
Marcel Heyligen
Found on a barked branch, 14 mm in diameter, of Ro
09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au
10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
04-10-2025 02:13
Francois Guay
Hi everyone, I found this Hymenoscyphus growi
03-10-2025 22:17
Francois Guay
Hi everyone, I found this white, star-shaped
Heyderia abietis?
Raúl Tena Lahoz,
20-10-2008 17:33
On Pinus sylvestris needles, found in Cantavieja (Teruel (Aragón)) in Spain. Well, at first I thought it would be Heyderia pusilla. But asci arise from croziers. In few asci seems to not have croziers (upper left), but I´m not sure. So then, Heyderia cucullata on Pinus needles? Another question, Heyderia abietis=Heyderia cucullata?Thanks a lot,
Raúl.
Raúl Tena Lahoz,
20-10-2008 17:35
Re:Heyderia abietis?
Another macro
Raúl Tena Lahoz,
20-10-2008 17:36
Re:Heyderia abietis?
Now micro of asci
Nicolas VAN VOOREN,
20-10-2008 18:59
Re:Heyderia abietis?
Very nice photographs.
About the question on the synonymy H. abietis / H. cucullata, see the article in the joined PDF.
About the question on the synonymy H. abietis / H. cucullata, see the article in the joined PDF.
5557.pdf
Raúl Tena Lahoz,
20-10-2008 21:09
Re:Heyderia abietis?
¡¡Muchísimas gracias Nicolas!!
Hans-Otto Baral,
21-10-2008 20:38
Re:Heyderia abietis?
Hi Raúl and Nicholas
very good photos, Raúl! It is interesting to see that H. cucullata (abietis) is able to grow on Pinus. I originally thought that Pinus needles are only inhabited by H. pusilla, but a collection on the DVD (HB 7536) and Bacyk's observations indicate that also H. cucullata may grow on Pinus.
On the DVD you can also see that during 2004/5 I studied totally 5 collecions referable to H. cucullata and 8 referable to H. pusilla. As a result, the absence of croziers was linked with smaller fruitbodies.
What is the size of heads and length of stipes in your collection? Did you also measure the spores?
Nicholas, what is the exact citation of Bacyk's article? I cannot find any reference in it.
Cheers
Zotto
very good photos, Raúl! It is interesting to see that H. cucullata (abietis) is able to grow on Pinus. I originally thought that Pinus needles are only inhabited by H. pusilla, but a collection on the DVD (HB 7536) and Bacyk's observations indicate that also H. cucullata may grow on Pinus.
On the DVD you can also see that during 2004/5 I studied totally 5 collecions referable to H. cucullata and 8 referable to H. pusilla. As a result, the absence of croziers was linked with smaller fruitbodies.
What is the size of heads and length of stipes in your collection? Did you also measure the spores?
Nicholas, what is the exact citation of Bacyk's article? I cannot find any reference in it.
Cheers
Zotto
Raúl Tena Lahoz,
22-10-2008 10:04
Re:Heyderia abietis?
Thanks Zotto!
Look in the forum of Petites annonces, a message posted by Nicolas: "Offre de souscription"
Give me a bit of time and I will post the measures.
Raúl
Look in the forum of Petites annonces, a message posted by Nicolas: "Offre de souscription"
Give me a bit of time and I will post the measures.
Raúl
Nicolas VAN VOOREN,
22-10-2008 19:26
Re:Heyderia abietis?
Bacyk B. 2005. Description d’Heyderia cucullata et réflexions sur l’existence d’un deuxième taxon Heyderia pusilla. Bulletin mensuel de la Société linnéenne de Lyon, 74, num. spéc., p. 41-46.
Hans-Otto Baral,
22-10-2008 20:14
Re:Heyderia abietis?
Thanks Nicholas!
Zotto
Zotto
Raúl Tena Lahoz,
23-10-2008 14:02
Re:Heyderia abietis?
Cap: 1-2,5 mm x 1-1,5 mm.
Stipe: 5-18 mm x 0,3-0,5 mm.
Spores: 13-18 x 2,5-3 µm
Spores when hipermature: at least one septum and minutely verruculose (that´s what it seems, but not sure).
In apos sent to Javier Fernández in 2006, that arrived dry because of the travel, the spore measures where:
14,46-20,91 (24) µm x 3-4 µm, 1-4 septated.
Stipe: 5-18 mm x 0,3-0,5 mm.
Spores: 13-18 x 2,5-3 µm
Spores when hipermature: at least one septum and minutely verruculose (that´s what it seems, but not sure).
In apos sent to Javier Fernández in 2006, that arrived dry because of the travel, the spore measures where:
14,46-20,91 (24) µm x 3-4 µm, 1-4 septated.
Raúl Tena Lahoz,
23-10-2008 14:03
Re:Heyderia abietis?
Another macro.
Raúl Tena Lahoz,
23-10-2008 14:04
Re:Heyderia abietis?
Saludos,
Raúl.
Raúl.
Hans-Otto Baral,
23-10-2008 16:23
Re:Heyderia abietis?
Many thanks, that apo size sounds very good for H. cucullata
Zotto
Zotto