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27-08-2012 11:48

Alessio Pierotti Alessio Pierotti

According Mycobank some Polystigma, such as P. tru

26-08-2012 20:46

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Trouvé dans un ruisseau, sur bois mort à

20-04-2012 18:26

Gernot Friebes

Hi, I have never found E. cerviculata so I would a

24-04-2012 11:54

Romain Penz

Bonjour,Je suis un mycologue amateur plutôt orien

21-08-2012 22:09

Nedim Jukic Nedim Jukic

Hello, I have problem identifying this finding, ev

22-08-2012 23:01

Bometon Javier Bometon Javier

Fructificaciones de aproximadamente 10mm,  un poc

22-08-2012 15:52

Alain GARDIENNET Alain GARDIENNET

Bonjour, Dans des tiges de Typha angustifolia, au

22-08-2012 21:00

Marja Pennanen

Hi,I did not manage to determine these hairy cups

20-08-2012 21:57

Michel Hairaud Michel Hairaud

Bonsoir . Hi to all. Pourriez vous me confirmer q

21-08-2012 09:53

Alessio Pierotti Alessio Pierotti

The genus Polystigma was erected by Persoon in 181

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Nomenclatural note (2)
Alessio Pierotti, 27-08-2012 11:48
Alessio PierottiAccording Mycobank some Polystigma, such as P. truncatum, were published in Gola "The mycological herbarium of PA Saccardo" (Padua, 1830). This book is a catalog of exsiccata herbarium of the Italian botanist. Gola writes: "Not all specific names have been published, and some of them are to be considered as nomen nudum" (p. V). When Gola lists P. truncatum (Ellis) recombination should be attributed to Saccardo or Gola?
Nicolas VAN VOOREN, 27-08-2012 18:15
Nicolas VAN VOOREN
Re : Nomenclatural note (2)
Well, it's difficult to answer.
1) You need to verify how the name is published in the herbarium sample (to verify if a description is provided)
2) You need to verify how the combination is cited in the Gola's publication

These informations are important to verify the validity of the basionym and the validity of the combination (and of course the author).