Galanthus elwesii Galanthus elwesii Galanthus elwesii (Elwes's snowdrop, greater snowdrop) is one of a number of species of the genus "Galanthus", herbaceous, perennial, bulbous plants belonging to the family Amaryllidaceae. It is a native of the Caucasus. This herbaceous perennial plant grows to about 20–25 cm high. It grows from a globose bulb, 2–3 cm in diameter. It produces two leaves which are obtuse, linear, and blue-green in colour. The flowers are globose, white, pendulous, and 2–3 cm long, and solitary at the tip of a solid, pointed scape. The outer floral tepals are oblanceolate, with shorter inner tepals that are emarginate
Chlamydomonas nivalis "C. nivalis" is complex, it also helps the algae exploit its niche and survive unfavourable conditions. As a result, "C. nivalis" is one of the best known and studied snow algae. When taking account of the photoprotective effect of its secondary carotenoid, astaxanthin, among the other adaptive mechanisms to its extreme habitat, it can be understood how "C. nivalis" became so dominant in microbial snow algae communities. Green motile offspring are produced in the spring and throughout the summer. They develop into red dormant cysts, the stage where this organism spends most of its life cycle, as the winter season