Galanthus and referred to the French vernacular name, "" (Snow-pierce), based on the plants tendency to push through early spring snow (see Ecology for illustration)]. The modern family of Amaryllidaceae, in which "Galanthus" is placed, dates to Jaume Saint-Hilaire (1805) who replaced Jussieu's Narcissi with "Amaryllidées". In 1810 Brown proposed that a subgroup of Liliaceae be distinguished on the basis of the position of the ovaries and be referred to as Amaryllideae and in 1813 de Candolle separated them by describing Liliacées and Amaryllidées as two quite separate families. However, in his comprehensive survey of the Flora of France (Flore française,
Chlamydomonas nivalis optimal position in the snow for moisture content, light, and temperature. When in the immotile cyst stage, the "C. nivalis" cells must depend on the flow of meltwater to move it by chance to a favourable area. The temperatures in which this species can survive in ranges from below 0 °C to just above 20 °C. Growth is slow when temperatures are below 5 °C. At 5-15 °C the growth of "C. nivalis" cells can outperform the growth of C. reinhardtii cells. Both species grow at the same rate at 20-25 °C. The growth of "C. nivalis" is suppressed when