02-01-2026 17:43
MARICEL PATINOHi there, although I couldn't see the fruitbody, I
04-01-2026 17:45
Stephen Martin Mifsud
I was happy to find these orange asmocyetes which
03-01-2026 13:08
Niek SchrierHi all,We found groups of perithecia on a Lecanora
29-12-2025 17:44
Isabelle CharissouBonjour,J'aimerais savoir si d'autres personnes au
01-01-2026 18:35
Spooren Marco
Original loamy soil aside a artificial lake.The co
31-12-2025 19:27
Spooren Marco
Collected from loamy soil, at waterside (completel
Hydropisphaeria sp.
Garcia Susana,
25-03-2015 08:14
I found this ascomycete growing on stems of Equisetum arvense.
Perithecia size diameter is 200-230um. They are superficial, on a subiculum of hyphae; very easily removable. Color orange. When drying takes on a darker color and takes shape apotecioide.
The reaction is negative both KOH and the lactic acid.
Spores I see them smooth (I made stains with CB and RC and I have not seen any trace of ornamentation).
With the documentation that I have, I understand that this is Hydropisphaeria, and the key I have come to H.arenula, but the spore size would be too large.
That think?
regards
Susana
Hans-Otto Baral,
25-03-2015 08:36
Re : Hydropisphaeria sp.
Yes I also think it is H. arenula. When I wrote with Christian the paper on Ijuhya equiseti-hyemalis, we treated also this species.
Spore size fits well. In H.B. 8622b, e.g., I measured 13.5-)16.5-#18-21#(-22.5) x 4.3-5.2(-5.8) µm
I also revised the type of Nectria equiseti-hiemalis showing spores in KOH (12-15-)16-22 x (3.2-)3.5-3.7(-4.2) µm. We confirmed its synonymy with H. arenula.
Do you have my paper? It is in Österr. Z. Pilzk. 17 (2008). I can send you a pdf.
Zotto
Spore size fits well. In H.B. 8622b, e.g., I measured 13.5-)16.5-#18-21#(-22.5) x 4.3-5.2(-5.8) µm
I also revised the type of Nectria equiseti-hiemalis showing spores in KOH (12-15-)16-22 x (3.2-)3.5-3.7(-4.2) µm. We confirmed its synonymy with H. arenula.
Do you have my paper? It is in Österr. Z. Pilzk. 17 (2008). I can send you a pdf.
Zotto
Gernot Friebes,
25-03-2015 09:02
Re : Hydropisphaeria sp.
Hi,
the paper Zotto mentioned is also available online:
http://www.landesmuseum.at/pdf_frei_remote/OestZPilz_17_0015-0024.pdf
Best wishes,
Gernot
the paper Zotto mentioned is also available online:
http://www.landesmuseum.at/pdf_frei_remote/OestZPilz_17_0015-0024.pdf
Best wishes,
Gernot
Garcia Susana,
25-03-2015 09:06
Re : Hydropisphaeria sp.
Hi Zotto,
Thanks for the confirmation.
No, did not have the paper you mention, but I've seen that is available on the red and I've downloaded. Now I'll have a look.
Un saludo
Susana
Thanks for the confirmation.
No, did not have the paper you mention, but I've seen that is available on the red and I've downloaded. Now I'll have a look.
Un saludo
Susana