Edmund Russow an authority on Sphagnaceae (sphagnum mosses) and remembered for his research in plant anatomy and histology, in particular studies of the plant family Marsileaceae (aquatic and semi-aquatic ferns). The plant genus "Russowia" is named in his honor, as is "Sphagnum russowii" (Russow's sphagnum). Edmund Russow Edmund August Friedrich Russow (24 February 1841 – 11 April 1897) was a Baltic German biologist born in Tallinn (), in present-day Estonia. Son of a military engineer, Edmund Russow studied at the Universities of Tartu () and Berlin. In 1867 he became an associate professor at Dorpat, where from 1874 to 1897, he served
Type (biology) species of the section ... After studying the diverse forms, I came to consider them as belonging to the one and the same specific type. In botanical nomenclature, a "type" ("typus", "nomenclatural type"), "is that element to which the name of a taxon is permanently attached." (article 7.1) In botany a type is either a specimen or an illustration. A specimen is a real plant (or one or more parts of a plant or a lot of small plants), dead and kept safe, "curated", in a herbarium (or the equivalent for fungi). Examples of where an illustration may serve as