Galanthus 1805–1815) he divided Liliaceae into a series of "Ordres", and placed Galanthus into the Narcissi "Ordre". This relationship of Galanthus to either liliaceous or amaryllidaceaous taxa (see Taxonomy of Liliaceae) was to last for another two centuries till the two were formally divided at the end of the twentieth century. Lindley (1830) followed this general pattern, placing "Galanthus" and related genera such as "Amaryllis" and "Narcissus" in his Amaryllideae (which he called The Narcissus Tribe in English). By 1853, the number of known plants was increasing considerably and he revised his schema in his last work, placing "Galanthus" together the
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