Pellaea atropurpurea (Purple-stem cliffbrake)

5/17/2016 · Worcester Road Trails, Beaver Br, Hollis, New Hampshire ID is uncertain

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Pteridophyta	Ferns
Class	Filicopsida	“Leptosporangiate” (has to do with how their spores form) ferns—includes most ferns
Order	Polypodiales	Polypod ferns
Family	Pteridaceae	Ferns that grow on rocks (mostly)
Genus	Pellaea	From the Greek pellaios, “dark,” possibly alluding to the stalks of this fern which are generally dark
Species	atropurpurea	Dark purple