The Cryptogamous Plants of Dr. Roxburgh. 517 



ceolale, deeply gashed, smooth, and rather firm. Fructifi- 

 cations generally solitary, on the segments of the pinnules. 

 Involucre a pouch. 

 Nat. of the Moluccas. 



10. D. chinensis. Smith. Icon. Roxb. 14, t. 119. (unfi- 

 nished pencil sketch.) D. tenuifolia. Sw. Wall. Cat. 63, No. 



Erect. Fronds lanceolate, alternately-tripinnate, polish- 

 ed ; ukimate divisions decurrent, wedge-shaped ; apices trun- 

 cate and generally ^-flowered. Involucre dentate. 



Trichomanes chinensis, Linn. 



An elegant, erect, slender, polished species, from 1 to 

 2 feet high, and of a thin texture ; a native of the eastern 

 parts of Bengal^ where it fructifies during the rains. The 

 whole of the annulated capsulae are inserted by means of very 

 slender pedicels into the very bottom of the 2-valved pouch. 



19. DICKSONIA. 



Fructifications in roundish, marginal, distinct, prominent 

 spots. Involucre double ; one (the inner,) from the (under) 

 surface, separating outward ; the other from the margin of 

 the frond turned in over the former, and separating inwards. 



1. D. moluccana. R. Wall. Cat. 65, No. 217 S. 



Stipes, divisions a little hairy. Fronds (3-4 feet high,) al- 

 ternately bipinnate ; leaflets ensiform, the fertile more deep- 

 ly serrate, with the fructifications on the points of the ser- 

 ratures. 



Nat. of the Molucca Islands. 



20. CYATHEA. 



Fructifications scattered, roundish, standing in an hemi- 

 spherical calyx, which bursts at the top, without an oper- 

 culum. 



1. C. pinnata. R. C. Brunonis. Wall. Cat. 63, No. 179, 

 (quod nomen delendum.) 



