Galanthus this study corresponded to clade nivalis, subseries "Glaucaefolii" with clade Elwesii and subseries "Viridifolii" with clades Woronowii and Alpinus. However, the model did not provide complete resolution. "sensu" Ronsted et al. 2013 "Galanthus" is derived from the Greek γάλα ("gala"), meaning "milk" and ἄνθος ("anthos") meaning "flower", alluding to the colour of the flowers. The epithet "nivalis" is derived from the Latin, meaning "of the snow". The word "Snowdrop" may be derived from the German "Schneetropfen" (Snow-drop), the tear drop shaped pearl earrings popular in the sixteenth and seventeenth centuries. Other, earlier, common names include Candlemas bells, Fair maids of
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