WOODSIA. 



203 



WOODSIA. 



Commemorative of Joseph Woods, a British botanist. 

 Spore-masses circular, surrounded by an inferior involucre, the 

 edge of which is divided into many hair-like incurved segments. 

 WOODSIA HYPERBOEEA (Northern), Fig. 80. Native of 

 Great Britain ; hardy, yet does better under a frame in 

 winter. Fronds 2 to 6 inches high, 

 narrow -lanceolate, pinnate, dullish 

 green, with a few scales on the under 

 side. Sori medial, finally confluent, 

 or covering the surface. Indusium 

 deeply laciniated, terminating in hair- 

 like articulated segments. Stem arti- 

 culated near the middle, the upper 

 part falling off when mature. It 

 should be planted in a dry part of the 

 fernery if it be intended to try it in 

 the open air. W. ilvensis sometimes 

 succeeds in similar situations, but a 

 spare plant should always be kept in 

 the frame in case it should not do 

 well. 



W. POLYSTICHOLDES VAR. VEITCHII 



(Mr. Veitch's Polystichum-like Wood- 

 sia). Introduced by the gentleman 

 after whom it is named, and who 

 found it near Yeddo, in Japan. It 

 has narrow pinnate fronds, 6 or 

 8 inches or more in height, with both 



the upper and lower surfaces covered with short close hairs. 



It will probably prove hardy, but is safer for the present in 



a frame. 



Fig. 80. Woodsia hyperborea. 

 (Frond full size ; pinna mag- 

 nified.) 



