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François BartholomeeusenDear forum members,On April 25 2024, I found one f
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Ethan CrensonHi all, Found late last week in a New York City p
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F. JAVIER BALDA JAUREGUIHello, everyone.An idea for this pyreno, I found u
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Gernot FriebesHi!We observed this hyphomycete growing between le
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Mathias HassHi everyone, Found on attached branches of top pa
28-04-2024 18:05
Bernard CLESSEBonsoir à toutes et tous,J'ai trouvé ce matin ce
Apotecios amarillos citrinos, en parte externa de cúpula de fruto (bellota) de Quercus coccifera. Hasta 1 mm de diámetro.Ascas sin croziers, dudosa reacción amiloide; esporas con septo central y vacuolas; parafisis con pigmento citrino, uniformes; excípulo ectal con textura intrincata.
Serán recibidas con agrado, todas las sugerencias.
Gracias
Lemon yellow apothecia, partly external dome of fruit (acorn) of Quercus coccifera. Up to 1 mm in diameter. ASCI without croziers, dubious reaction amyloid; spores with central septum and vacuoles; parafisis with citrine pigment, uniform; excípulum ectal textured intrincata.
They will be received with pleasure, all the suggestions.
Thank you
Bisporella clarflava = B. sulfurina shows similarities, but is inamyloid.
Zotto
Your right ascus is inamyloid, but your left? Have you more IKI-images of asci?
Spore size fits well clatroflava.
Zotto
that's really good. Sometimes an amyloid ring is visible already without iodine. But that an inamyloid ring is visible is new to me! Or do you think that the greyish ring is invisible without IKI?
Zotto
I do not know what to think... I attach a pic of the ascus fully turgescent where you can see two apical dots (more or less ;-)), but not the hole apical canal. I send you a Picasa link to your mail with the others pics.
Could you explain us why you think it is better to call it claroflava instead of sulfurina?
Merci René pour ton dessin.
Raúl
Bisporella claroflava (Grev.) Lizo? & Korf, Mycotaxon 54: 474 (1995)? et placé en synonymie avec Bisporella citrina (Batsch) Korf & S.E. Carp., Mycotaxon 1(1): 58 (1974)?.
Voir : http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=309569?
L'espèce est donc, sur cette base, distincte de B. sulfurina.
J'espère que tu vas bien ? Je te transmets mes cordiaux et amicaux messages et je garde un très bon souvenir de notre rencontre.
René
Bisporella claroflava was thought to be a synonym of B. sulphurina by Lizon & Korf 1995, see attach.
As synonyms they list also B. discedens, and Helotium citrinicolor.
About sulphurina they write:
Korf & Zhuang (1985) expressed doubt if B. discedens can be really
distinguished from the common Bisporella sulphurina (Quél.) S. E.
Carpenter. This species seems to be really closely related to B. claro_ava
and it may be conspecific. Quélet's collections were partly destroyed
(Gilbert, 1949) and also the type specimen of Helotium sulphurinum
Quél. is missing at PC (R. Cailleux, in litt.). Until a lectotype or neotype
is chosen for Quélet's species, no conclusions can be made.?
Raul: your pic of living ascus is also in IKI? Again one could easily think this is amyloid, but it isn't. More clear results with rings are obained in dead asci, anyhow your last example shows that this is not very clear in this species.
Zotto
And thanks Zotto for your explanation too. My last photo is in water. Next time I do micro of this species I will focus more on apical pore. I attach the macro with its common partner on Eucalyptus: Calycina "heterospora"
Raúl
Zotto