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
Carnivorous plant more or less than this optimum will take up less carbon dioxide than an optimal plant, and hence growing less well. These plants will be at a selective disadvantage. At zero investment the growth is zero, because a non-carnivorous plant cannot survive in a habitat with absolutely no soil-borne nutrients. Such habitats do not exist, so for example, "Sphagnum" absorbs the tiny amounts of nitrates and phosphates in rain very efficiently and also forms symbioses with diazotrophic cyanobacteria. In a habitat with abundant soil nutrients but little light (as shown above), the gross photosynthesis curve will be lower and flatter,