ALSO PHI LA. 



371 



to a distinct wing. The sub -divisions thus produced are of a somewhat 

 leathery texture, bright green on both sides, sickle-shaped, blunt, and entire 

 (uncut). The very small sori (spore masses) are medial (disposed on the 

 mid vein of the fertile segments). — Hooker, Synopsis Filicum, p. 457. 



A. pycnocarpa — pyc-noc-ar'-pa (having dense fruit), Kunzc. 



A very peculiar-looking, stove species (Fig. 53), native of Peru, with 

 a thorny stem or trunk seldom more than 6ft. in height, and ample 



Fig, 53, Alsophila pycnocarpa 

 (greatly reduced). 



fronds of a leathery texture and bipinnate (twice divided to the midrib). 

 The primary pinnaB (principal leaflets) are borne on short, articulated 

 (jointed) stalks, and furnished with nearly stalkless pinnules (leafits) dented 

 at the base and bluntish at their summit, of a dark green colour on both 



