Oltmanns, Friedrich Morphologie und biologie der algen von dr. Friedrich Oltmanns ... - Jena G. Fischer 1904-05. - 2 v. illus., 2 fold. tab. 26 cm. "Literatur" at end of family or larger groups. LCCN: agr12000730 Subjects--Topical Terms: Algae Dewey Class. No.: 461.4018