@article {14, title = {Hydrocharitaceae, Lemnaceae, Pontenderiaceae, Potamogetonaceae, Gentianaceae(Limnanthemum), Nymphaeaceae}, journal = {Botanisk Tidsskrift}, volume = {24}, year = {1902}, note = {(not seen)}, pages = {260-263}, author = {Ostenfeld, C.H.} }