Galanthus other two genera in the modern Galantheae in tribe Amarylleae, order Amaryllidaceae, alliance Narcissales. These three genera have been treated together taxonomically by most authors, on the basis of an inferior ovary. As the number of plants increased, so did the taxonomic complexity. By the time Bentham and Hooker published their "Genera plantarum" (1862–1883) ordo Amaryllideae contained five tribes, and tribe Amarylleae 3 subtribes (see Bentham & Hooker system). They placed "Galanthus" in subtribe Genuinae and included three species. "Galanthus" is one of three closely related genera making up the tribe Galantheae within subfamily Amaryllidoideae (family Amaryllidaceae). Snowdrops are sometimes
Chlamydomonas nivalis cell in combination with inorganic material could enhance the darkening over the snow and reduce the surface area of white snow. Due to the absorption of solar energy by the alga, albedo would be reduced and the darker areas on the snow where the blooms form would melt more rapidly. As a result, populations of "C. nivalis" would increase, creating a feedback loop that amplifies melting and reduces sunlight absorbance which contributes to glacier retreat and lowering albedo, as shown experimentally. This is concerning to environmentalists and climate scientists. "C. nivalis" can be used as a model species for studying