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23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

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Ingoldian Fungi
Chris Yeates, 02-05-2015 19:03
Chris YeatesBonjour tous
This time of year is not the best time to collect these fungi, but a recent species-rich collection has encouraged me to draw the attention (or remind) ASCOFrance members to this branch of mycological study (Alain G is clearly 'on the case'!). I know many on here have made excellent collections of teleomorphs of aquatic and semi-aquatic ascos.

All that is needed is naturally-formed foam in streams, or sometimes at the edge of standing water, and the simplest of materials:
~ a teaspoon
~ a water-tight container
~ a botanical fixative (otherwise the conidia start to germinate when they touch a solid object) Formol Acetic Alcohol is the one normally used
~ literature - this http://www.ascofrance.com/uploads/document/1989DescalsAquaticHyphos-0001.pdf which I have uploaded to ASCOFrance was produced for a workshop I helped organise many years ago, and is still the first one I consult when identifying conidia

Most of the fungi encountered are anamorphs of ascomycete fungi; for a number the teleomorph is also now known. Occasionally one comes across fungi from other groups: in the foam in these photographs were also the coronate conidia of a zygomycete (Erynia rhizospora) and those of a member of the tiny basidiomycete order the Classiculales http://en.wikipedia.org/wiki/Classiculomycetes. I have included images of three fungi here, before I submit them to the Database.

Nectria lugdunensis - these are conidia of the Heliscus anamorph, they are characteristically shaped like cloves (clous de girofle /Gewürznelken); once, many years ago, I collected a semi-submerged branch with both the anamorph and teleomorph growing together.

Culicidospora gravida - these remarkable conidia have been described by Ingold as looking like penguins, to me they also resemble hummingbirds. The granular contents are characteristic, I have not found a reference yet to the coloured contents - these are not stained.

Flabellospora acuminata - another species with large remarkably shaped (and large) conidia - an aquatic lifestyle evolves its own solutions.

I hope this may encourage others to dip their toes into this fascinating area of study.

Cordialement
Chris


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Stip Helleman, 03-05-2015 22:16
Stip Helleman
Re : Ingoldian Fungi
wonderful Chris,
these fungi are mostly unnoticed by me although they are lovely.

cheers,
Stip
Nick Aplin, 03-05-2015 23:09
Re : Ingoldian Fungi

Very nice Chris :)


Thanks for sharing these beautiful images,


Nick

Christian Lechat, 04-05-2015 07:28
Christian Lechat
Re : Ingoldian Fungi
Hi Chris,
I have a collection of sexual state of Neonectria lugdunensis (Sacc. & Therry) L. Lombard & Crous 2014 = Heliscus lugdunensis Sacc. & Therry, collected by Yannick Mourgues on 20.Feb. 2010, France, Hautes-Alpes, Jourcins, St André d'Embrun. I attach some images of this collection.
Cheers,
Christian
MARIA VIRGINIA BIANCHINOTTI, 06-05-2015 20:11
Re : Ingoldian Fungi
Nice photos! Thank you!
Michel Hairaud, 06-05-2015 21:53
Michel Hairaud
Re : Ingoldian Fungi

Hi Chris,


How would you tell in English '' je suis scotché par la beauté des photos'' !


SOmething like ''I am stuck ...'' may be more colloquial


Bravo AMitiés. Michel

Stip Helleman, 06-05-2015 22:40
Stip Helleman
Re : Ingoldian Fungi
Great,
thanks Christian to show both morphs together.
Stip