Galanthus reginae-olgae epithet "reginae-olgae" means 'of Queen Olga'; Olga Constantinovna of Russia was then Queen of Greece. The species (or when divided into subspecies, its autonymous subspecies) has been treated as "Galanthus nivalis" subsp. "reginae-olgae". Other regularly used synonyms include "G. olgae" and "G. corcyrensis". The name "Galanthus corcyrensis" has been particularly used for plants that flower in the autumn with the leaves rather than before them. The species has been divided into two subspecies, distinguished by the time of flowering: There is however no sharp division between these two subspecies. "Galanthus reginae-olgae" is native to Sicily and parts of the Balkans,
Chlamydomonas nivalis become one of the most well-studied snow algae. Although its taxonomy is still being settled, the life cycle of this snow algae is now much better understood. The historical disputes about the classification and misclassification of specimens have resulted in a number of names from older publications that all mean to refer to "C. nivalis". These are: "Uredo nivalis", "Sphaerella nivalis", "Protococcus nivalis", and "Haematococcus nivalis". "C. nivalis" has been reported worldwide in mountainous regions, polar regions, or snowfields of every continent. It is the most abundant snow algae and typically composes the majority of cells identified in specimens taken