486 The Cryptogamous Plants of Dr. Roxburgh, 



1st. Here the root runs under ground, whereas P. querci- 

 folium is parasitical, thick, fleshy, densely clothed with 

 brown fibres. 



2nd. Here the fronds are all stiped, and deeply pinnatifid, 

 with only two rows of large naked fructifications on each 

 pinnule. In the other, the barren fronds are sessile, and 

 the fructification consists of numerous small dots scattered 

 over the segments of the fertile fronds. 



10. P. semipinnatum, R. 



Stipes smooth; fronds smooth, composed of one or two 

 distinct, remote pair of broad, variously-shaped segments 

 below ; and a large terminal, 3-lobed one. Fructifications 

 in numerous, approximate, distinct spots, over the whole 

 disk. Involucre obscure. 



Nat. of the Malay Islands. Is very like my Acrostichum 

 semipinnatum. 



Section II. — With compound leaves, 



Polypodium lucidum. R. Icon. Roxb. Suppl. 5, t. 2. 



Fronds pinnate: stipes smooth, leaflets subalternate, ses- 

 sile, linear-lanceolate, entire, smooth. Fructifications in a 

 single line, of large, remote spots, on each side, half-way 

 between the margin and nerve. 



A native of Nepaul, from thence introduced into the 

 Botanic Garden at Calcutta, by Dr. Buchanan in 180^ ; 

 general height of the whole plant from 18 inches to 2 feet. 

 Fructifies during the rains.* 



Shoots creeping, thick, and fleshy, pretty smooth, colour 

 a deep green. 



Fronds few, alternate, nearly erect, oval, from 1 to 2 

 feet long, stipe included ; pinnate. Leaflets opposite, and 

 alternate, sessile, narrow-lanceolate, with oblique tapering 

 base, entire, smooth, and shining ; of a thin but firm tex- 



* Khassia Hills, common. — W. G. 



