Template:Wittrock & Nordstedt, 1884
- Wittrock, V.B. & Nordstedt, C.F.O. 1884. Literatur-öfversigt [Literature review]. Algae aquae dulcis exsiccatae praecipue Scandinavicae quas adjectis algis marinis chlorophyllaceis et phycochromaceis.... Botaniska Notiser 1884: 121-128, un-numbered figs. BHL