Accès membres

Mot de passe perdu? S'inscrire

10-06-2026 09:24

François Freléchoux François Freléchoux

Bonjour, J'imagine que cette détermination ne do

09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

« < 1 2 3 4 5 > »
Helminthosphaeriaceae on Ficus carica
Enrique Rubio, 24-04-2023 19:26
Enrique RubioHi my friends
I'd like to know your opinion on this peculiar fungus.
Perithecia superficial, gregarious, growing on branches of Ficus carica still attached to the tree but close to the ground, but away from water, apparently not growing on pyrenomycetes or other fungi. Pyriform, 200-400 µm high, collapsing vertically when dry, blackish, ostiolate, densely hirsute due to subhyaline or light brown hairs with acute apex, multiseptate, (100-)165(-225) x (10-)11(-12) µm with thick walls 1.5-3.0 µm. Asci fusoid (72-)80(-102) x (14-)17(-20) µm, 8-spored, without an apical apparatus or subapical globule visible. Ascospores ellipsoidal (18.0-)20.0(-22.5) x (7.0-)7.5(-8.0) µm; Q = (2.3-)2.7(-3.0), with obtuse poles only slightly attenuate; hyaline, yellowish at maturity, constricted to a median transverse septum, ornamented by conspicuous warts up to 1 µm high surrounded by a thick, usually persistent episporium.
The fungos shares characters of Echinosphaeria and Helminthosphaeria. It seems close to Echinosphaeria incondita A.E. Bell & Mahoney, CBS Biodiversity Series 15: 79 (2016) with aquatic ecology, with up to 3 septa more fusiform larger ascospores 25-31 x 6-8, not constricted and asci vith an apical apparatus.

  • message #75926
  • message #75926
  • message #75926
  • message #75926
  • message #75926
  • message #75926
  • message #75926
  • message #75926
Andrew N. Miller, 24-04-2023 19:54
Andrew N. Miller
Re : Helminthosphaeriaceae on Ficus carica
As usual, I would be happy to sequence it.  It probably is not that significant without DNA sequence data and will remain ambiguous.

Cheers,
Andy
Andrew N. Miller, 24-04-2023 19:55
Andrew N. Miller
Re : Helminthosphaeriaceae on Ficus carica
Some of the ascomata in the upper left photo look collabent.  I do not know of any Helminthosphaeriaceae that are collabent.  Probably a Coronophorales.
Enrique Rubio, 24-04-2023 19:57
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
Hi Andrew, Could you please clarify what collabent means?
Enrique Rubio, 24-04-2023 20:01
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
The description of Echinosphaeria incondita refers to a Spanish collection on Olea by J.J. Priou. I would like to know if it has similar characters to this one on Ficus.
I will try to sequence it, but I need specimens in better condition not contaminated by the dematiaceous fungus that invaded all the colonies.
Enrique Rubio, 24-04-2023 20:04
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
I have already looked up the word collabent. Yes, as I said in my description, the perithecia collapse vertically very easily.
Enrique Rubio, 24-04-2023 20:08
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
Yes, as you said, it certainly looks more like nectriaceous than helminthosphaeriaceous.
  • message #75932
Andrew N. Miller, 24-04-2023 20:09
Andrew N. Miller
Re : Helminthosphaeriaceae on Ficus carica
Dan and Anne are dear friends of mine, but they never sequenced their specimens, even the TYPE specimens.  So, just because they call it a Helminthosphaeria does not mean it is one.  Sequencing this collection would help us to know which order it belongs in.
Enrique Rubio, 24-04-2023 20:11
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
Yes, I will try to obtain sequences and cultures of it.
Andrew N. Miller, 24-04-2023 20:15
Andrew N. Miller
Re : Helminthosphaeriaceae on Ficus carica
Good luck.  Very few members of Helminthosphaeriaceae and Coronophorales grow in culture so do not be disappointed.
Enrique Rubio, 24-04-2023 20:18
Enrique Rubio
Re : Helminthosphaeriaceae on Ficus carica
Thank you, Andrew.