The Cryptogamous Plants of Dr. Roxburgh. 477 



and villous, about as thick as a goose-quill, from these 

 descend many ramous, dark coloured fibres. 



Stems issue from the large creeping roots, alternate, 

 scandent, filiform, flexuous, smooth ; their general length from 

 2 to 8 feet, and very slender. 



Fronds alternate, conjugate on a very short common petiole. 



Pinnae 2-3 inches long, composed of about four pair of 

 alternate, petiolated, subcordate, smooth leaflets. The 

 fertile ones are deeply cut into linear segments or spikelets ; 

 on the under side of which the fructifications are lodged, in 

 the same manner as in O. scandens. 



S. O, scandens. Linn. spec. pi. 1518. Lygodium semibi- 

 pinnatum, Br. Wall. Cat. 63, No. 175. 



Perennial, scandent. Fronds conjugate-pinnate : leaflets 

 linear, bearing the spikelets on the whole of the margin. 



Tsjura-valli-panna. Rheed. Mai. 12, t. 33. Hydroglossum 

 pinnatifidum, Willd. 5. 80. 



Nat. of the Malay Islands, Chittago?ig, Malabar, &c. Is 

 common in most parts of India. Flowering time the rainy 

 and cold season. 



Root perennial. 



Stipes scandent, or twining, and of considerable extent, seve- 

 ral yards often ; about as thick as a pack thread, and smooth. 



Fronds paired on common, alternate petioles ; compound 

 and decompound ; leaflets or lobes thereof tapering from 

 the base. 



Spikelets on the margins of the leaflets, resembling deep 

 serratures ; they are imbricated with two rows of scales^, 

 each enclosing a single, ovate, sessile, J -celled capsule, 

 containing innumerable, minute, yellow seeds. 



4. O. flexuosum. Linn. spec. pi. 1519, 



Perennial, scandent. Fronds conjugate-pinnate, rarely bi- 

 pinnate, the barren generally palmate ; leaflets subensiform, 

 (long and narrow,) bearing spikes on both sides. 



