Galanthus woronowii cultivation, it has frequently been confused with two other species, "Galanthus platyphyllus" (usually under its synonym "G. latifolius") and "Galanthus ikariae". All three species have broad green leaves arranged in a supervolute pattern (i.e. wrapped round one another at the base), and inner tepals with a green mark only at the apex. The inner tepals of "G. platyphyllus" lack a sinus at the apex, i.e. they do not have a notched edge. "G. ikariae" and "G. woronowii" are similar, although molecular studies have shown that they are distinct species. Some differences are: Galanthus woronowii Galanthus woronowii, the green snowdrop or
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