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28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :

01-03-2026 15:31

Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

01-03-2026 17:51

Bruno Coué Bruno Coué

Bonjour,sur vieilles crottes de sanglier en chambr

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Picoa lefebvrei?
Godorova Olga, 12-02-2015 19:56
Godorova OlgaHello, dear friends.
Two days ago we were in Negev desert of Israel and looked for desert truffels in the area, where several Helianthemum sp. grow. 
Several small hypogeious fungi were found there. And I think, it looks like Picoa lefebvrei. The mature spores look verrucose and reach 30-35 mkm. As I understand, the spores of Picoa juniperi, which is similar to this, must be smooth?
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Miguel Ángel Ribes, 13-02-2015 01:10
Miguel Ãngel Ribes
Re : Picoa lefebvrei?
Hi Olga

I have this collection from Fuerteventura (Canary Islands) with Helianthemum canariense.

http://www.micobotanicajaen.com/Revista/Articulos/MARibesR/Fuerteventura001/Picoa%20lefebvrei%20130310%2063.pdf

In Phylogenetic affiliation of the desert truffles Picoa juniperi and Picoa lefebvrei, Sbissi & al. (2010) the main character to identify P. lefebvrei is the warty spore ornamentation (smooth in P. juniperi).

Good luck.
Godorova Olga, 13-02-2015 05:24
Godorova Olga
Re : Picoa lefebvrei?
Great! Thank you very much! :)
Mario Filippa, 13-02-2015 14:38
Re : Picoa lefebvrei?
Great Olga, very interesting finding!