. Die süsswasser-flora Deutschlands, Österreichs und der Freshwater plants; Aquatic plants. Fig. a, b Mesogerron fluitans. c Raphido- nema brevirostre. d R. nivale. e R. seniper- virens (a, b nach Brand aus Heft 9 dieser Flora, c nach Scherffel, d nach Lagerheim, e 232 X nach Chodat).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pascher, Adolf, 1881-1945. Jena, G. Fischer

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