Galanthus woronowii Galanthus woronowii Galanthus woronowii, the green snowdrop or Woronow's snowdrop, is a bulbous plant native to north-east Turkey and the west and central Caucasus. In cultivation particularly, it has often been confused with two other species with broad green leaves and a single green mark on the inner tepals: "Galanthus ikariae" and "Galanthus platyphyllus" (usually under its synonym "G. latifolius"). "Galanthus woronowii" grows from a bulb. The leaves are "supervolute", i.e. one leaf is tightly clasped around the other within the bud, usually remaining like this at the base of the plant as it grows. The leaves are generally long,
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