■418 ETTMOLOGT. 



OpMoglossom, nphios, of a serpent, glossa, tongue; the spikes 



of fructification. 

 Ormopteris, ormos, a necklace, pieris; the form of fronds. 

 Osmunda, Osmumler, one of the names of Thor, a Celtic 



divinity. 



Paragramma, para, near to, gramma, a line ; the sori in 



short lines parallel with and close to the margin. 

 Pellfea, pcllos, dark-coloured ; the dusky colour of the fronds. 

 Pellceopsis, Pellcea-opsis, like ; like pelltea. 

 Peranema, peri, around, nema, a thread ; the sori born on a 



slender thread like stalk. 

 Phegopteris, phegos, beech ; beech Fern, by some called 



Sun Pern. 

 Phlebodium, pMehes, veins, odous, a tooth ; the joining of 



the veins in the areoles being like teefh. 

 Photenopteris, photeinos, shining, pteris ; shining Fern. 

 Phymatodes,ji/i)/mato, tubercles ; the impressed sori having 



the appearance of tubercles on the upper side of the 



frond. 

 Phymatopsis, Phymatodes, opsis, like ; like Phymatodes. 

 Plagiogyria, pJagios, oblique, gyros, a circle ; the obliquity 



of the ring of the sporangia. 

 Platycerium, plaltjs, broad, heras, horn ; the fronds divided 



in broad segments like stags' horns. (The Stags'- 



horn Fern). 

 Platyloma, platys, broad, loma, border ; having broad sori 



close to the margin. 

 Platyzoma, platijs, broad, zoma, a band ; the ring of the 



sporangia broad. 

 Plecosorus, plehtos, plaited ; relating to the form and posi- 

 tion of the sori. 



