63 



2) Post, leaflets of lowest node not ventricose; 



nodes of the leaf 6-8; 8-io(-i2.) 

 Leaf nodes 8-10. 

 X Lowest segment of the leaf 2-5 times 



longer than its diameter. 

 -|- Stem armed with elongated acuminate 



spines. 

 Qj. Sporophydia 720-900 long. 620. 



Delilei A. Br. 

 Qj. Qj. Sporophydia 980-1000. 6ad. anna/a 



A. Br. 



-| (- Papillae of stem very minute, abruptly 

 conical. 62e. angolensis A. Br. 



Fig. 54- 



XX Lowest segment 1-3 times longer than 



its diameter. 

 -\- Sporophyd. small, 520-600 (-800.) 62f. 



macilenta A. B. 

 -\--\- Sporophyd. larger, 870-1200. 



I. Flexible, sub-diaphnous, sub-brevi- 



bracteata, long naked tip of 



leaves. 62g. commersonii. A. Br. 



II. More rigid and shining, sub-longi- 



bracteata. 



x Nucleus 14 striate ; posterior leaf- 

 lets shorter or very short. 

 62h. fertilissima (S.) (Klein) 

 A. Br. 



xx Nucleus n-i2-striate ; posterior leaf- 

 lets not much shorter. 62i. 

 Ceylonica A. Br. 

 Leaf nodes 6-7 (-8.) 



