PTERIS. 



305 



Jin. long and Jin. broad ; the texture of all is somewhat leathery, and they 



are densely clothed on both surfaces with viscid glands. The spore masses 



are covered with a double involucre of a parchment-like texture, the inner 



one being sometimes obsolete. — Hooker, Species Filicum, ii., p. 200, t. 121b. 



P. (Campteria) Wallichiana— Camp-te'-rl-a ; Wal-lich-i-a'-na (Wallich's), 

 Agardh. 



This is a very robust-growing, greenhouse species, native of Japan and 

 the Himalayas, where it is said to occur at 8000ft. elevation. Its ample, 

 thrice-divided fronds are borne on strong, bright chestnut-brown, glossy stalks 

 oft. to 6ft. long. The central leaflet, often 2ft. long and 1ft. broad, is furnished 

 on each side with many spear-shaped, stalkless leafits cut down nearly to the 

 rachis into numerous narrow-oblong lobes nearly entire when barren ; the 

 lateral leaflets, as. large as the central one, are again forked ; all are of 

 a soft, papery texture and pale green in colour. The spore masses are 

 disposed along nearly the whole length of the leafits. — Hooker, Species Filicum,, 

 ii., p. 206. Beddome, Ferns of British India, t. 217. 



PYCNOPTERIS— Pyc-nop -ter-is. See Nephrodium. 

 RHIPIDOPTERIS— Bhi-pid-op -ter-is. See Acrostichum. 

 RHIZOGLOSSUM— Khi-zog-los -sum. See Ophioglossum. 



VOL. III. 



