|Fir Clubmoss (Huperzia Selago) in the UK - perhaps of the same family or genus as what is being talked about here? - image by Dave Dunford [CC-BY-SA-2.0 (www.creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons|
"Selago and Samolus. —The Selago (mentioned by "Pwcca," No. 10. p. 157.), in Welsh Gras Duw (Gratia Dei), was held by the Druids as a charm against all misfortunes; they called it Dawn y Dovydd, the gift of the Lord. They also ascribed great virtues to the Samolus, which was called Gwlydd, mild or tender. All that can be known respecting the Selago and Samolus, may be seen in Borlase's Antiquities of Cornwall. GoMER."
NOTES AND QUERIES. [No. 15. Feb. 9. 1850.]