184 



THE BOOK OF CHOICE FERNS. 



oblong, entire terminal leaflet and from one to six pairs of lateral ones. 

 These leaflets are 4in. to Gin. long, Jin. to ljin. broad, slightly attached at 

 the base to the midrib, of a somewhat leathery texture, and naked on both 

 sides. The sori (spore masses) are disposed in a single row, midway between 

 the edge and the midrib. P. angustatum of Blume is a form of this species. 

 — Hooker, Species Filicum, v., p. 89. Nicholson, Dictionary of Gardening, 

 hi., p. 191. Beddome, Ferns of British India, t. 156. 



P. p. Lindleyanum— Lind-ley-a'-num (Lindley's), Wallich. 



A variety with only a few leaflets, which do not reach down to the 

 rachis. 



P. palustre— pal-us'-tre (marsh-loving), Raddi. 



This stove species, native of Brazil and the Philippines, was, according * 

 to Lowe, introduced into the Royal Gardens, Kew, in 1837. Its distinctly- 

 pinnate fronds are from oft. to oft. long, and are furnished with leaflets 6in. to 

 lOin. long, of a leathery texture, light green in colour, and naked on both 

 sides. The abundant sori (spore masses) form a conspicuous feature, being 

 disposed in transverse rows between the veins, — Lowe, Ferns British and 

 Exotic, ii., t. 45. 



P. papillosum — pap-il-lo'-suni (nippled), Blume. 



A distinct, stove species, of medium dimensions, native of Java and the 

 Philippines. Its fronds, 1ft. or more in length and Sin. broad, are produced 

 from a stout, wide-creeping rhizome of a scaly nature, and borne on erect, 

 slender, rigid stalks 4in. to Bin. long and naked. They are cut down to the 

 rachis into close, horizontal, blunt, entire leaflets of a soft papery texture and 

 naked on both sides. The spore masses, disposed in rows near the edge, are 

 deeply immersed, the cavity being very prominent on the upper side. — Hooker, 

 Species Filicum, iv., p. 198 ; Second Century of Ferns, t. 46. Nicholson, 

 Dictionary of Gardening, hi., p. 191. 



P. Paradiseae — Par-ad-i'-se-^ (Paradise), Langsdorff and Fisher. 



This is a charming, stove species, of somewhat large dimensions, although 

 , of very slender habit, native of Brazil and St. Cathanne Island. Its deeply- 

 pinnatifid fronds, 1ft. to 4 ft. long and 3in. to Sin. broad, are produced from 



