Galantamine sorceress Circe's drugs. It is believed that moly is the snowdrop "Galanthus nivalis", which is a source of galantamine. The descriptions of moly given by Greek physician and herbalist Dioscorides support moly's identity as "Galanthus nivalis". It has been proposed that the drugs Circe used were an extract from "Datura stramonium" (also known as jimsonweed), which causes memory loss and delirium. This would give a basis for the snowdrop's use as an antidote, as "Datura stramonium" is anticholinergic, while galantamine is an acetylcholinesterase inhibitor. Galantamine is indicated for the treatment of mild to moderate vascular dementia and Alzheimer's. In the
Chlamydomonas nivalis such that it is covered by the carotenoid globules full of astaxanthin that will provide protection against UV radiation. The majority (91%) of astaxanthin derivatives are stored in its monoester form within dormant "C. nivalis" red cysts. Astaxanthin is the pigment that makes the cell appear deep red. Other pigments that can also be found in "C. nivalis" include violaxanthin and fadonirubin. Visible algal blooms could be a crucial determinant of surface albedo. It has been suggested that algal blooms partially composed of "C. nivalis" may contribute to lowering ice and snow albedo. The red coloured pigments produced by the