Galanthus this study corresponded to clade nivalis, subseries "Glaucaefolii" with clade Elwesii and subseries "Viridifolii" with clades Woronowii and Alpinus. However, the model did not provide complete resolution. "sensu" Ronsted et al. 2013 "Galanthus" is derived from the Greek γάλα ("gala"), meaning "milk" and ἄνθος ("anthos") meaning "flower", alluding to the colour of the flowers. The epithet "nivalis" is derived from the Latin, meaning "of the snow". The word "Snowdrop" may be derived from the German "Schneetropfen" (Snow-drop), the tear drop shaped pearl earrings popular in the sixteenth and seventeenth centuries. Other, earlier, common names include Candlemas bells, Fair maids of
Chlamydomonas nivalis "Uredo nivalis". Over the next century, many researchers disputed over whether these organisms were lichen, plants, alga, or animal. It was not until the early 20th century when researchers finally began to agree on the algal nature of the organism and gave its currently known name, "Chlamydomonas nivalis". In 1968 "C. nivalis" was officially recognized as a collective taxon. Unfortunately, due to the lack of sequencing techniques, reliance on visually examining similarly looking snow alga, and complicated life cycle of this species, errors continued to be made in classifying this and other species of snow algae. Today, "C. nivalis" has