POLYSTICHU1I. 



155 



distinguished from it by the indusium or covering of the 

 spore-masses being round and attached by its centre. 



POLYSTICHUM CAPENSE 

 (Cape), Fig. 71. Native of 

 the Cape of Good Hope. 

 Sometimes called Aspidium 

 coriaceum. It requires a 

 warm greenhouse. Fronds 

 about 3 feet high, dark green, 

 smooth, tripinnate. It makes 

 a noble specimen where there 

 is room enough to grow it 

 to its full size. It is well 

 adapted for exhibition, as it 

 is so striking and distinct. 



P. CONCAVUM (Concave). 

 A very beautiful green- 

 house or perhaps hardy 

 Fern, with large, spreading, 

 ovate, quadripinnate fronds, 

 having crowded obliquely- 

 / ovate lobed pinnules, with 

 recurved margins, so that 

 the surface is concave. 



P. CORIACEUM (Leathery). 

 Somewhat similar to P. 

 capense, but not so striking 

 a plant. The fronds are 

 smaller, and of a dull green. 

 It is a native of Mauritius. 



P. FLEXUM (Bent). This 

 species is very nearly hardy. 

 It is thick, shining, thrice-divided. Fronds about 18 inches 

 or 2 feet high. It is a native of St. Juan de Fernandez. 



P. OEDINATUM (Regular). A handsome bold-habited green- 



71. 



Polystichum capense. 

 frond full size.) 



(Part of 



