Traits taxon details
original description
(of Achnanthes ricula Hohn & Hellerman, 1963) Hohn, M.H. & Hellerman, J. (1963). The taxonomy and structure of diatom populations from three Eastern North American rivers using three sampling methods. Transactions of the American Microscopical Society, 82(3): 250-329 page(s): p. 276; pl. 1, fig. 41, 42 [details]
new combination reference
Wetzel, C.E. & Ector, L. (2018). On the identity of Achnanthes ricula M.H.Hohn & Hellerman and its transfer to the genus Navigiolum Lange-Bertalot (Bacillariophyta). <em>Notulae algarum.</em> 71: 1-5. page(s): 2. [details] Available for editors 
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