Abstract
The discovery of exsiccata no 632 of De Notaris’s Erbario Crittogamico Italiano now provides a lectotype for Sellaphora nigri (De Notaris) C.E. Wetzel & Ector, a common and widely distributed freshwater species originally described from the River Po (Italy). The lectotype takes precedence over the neotype previously designated by Wetzel and co-authors. New observations were made using light and scanning electron microscopy. A few notes on diatoms described in Erbario Crittogamico Italiano are briefly presented, along with illustrations of species present in the original protologue, including Nitzschia amphibia var. padana De Notaris nomen nudum.
Acknowledgements
Thanks to Line Le Gall for hosting the visit of DMW to the Muséum national d’Histoire naturelle, Paris (February 2017).
Disclosure statement
No potential conflict of interest was reported by the authors.
ORCID
Carlos E. Wetzel http://orcid.org/0000-0001-5330-0494
David M. Williams http://orcid.org/0000-0002-0584-307X
Notes
1. Padania is another name for the Po Valley, Pianura Padana in Italian, the locality of these specimens.
2. The name is preceded by an asterisk: ‘le poche specie dispensate nell’Erbario Crittogamico Italiano sono precedute da un asterisco’ (De Toni & Levi Citation1886, p. 125).
3. Named after the locality: ‘ … raccolti del Cav. Panizzi … a Ceriana presso San Remo’.
4. It is mentioned in AlgaeBase but with no further details other than the name.