59 



(2) Frond at least four-pinnate. 

 Pinnules J-J inch broad. 



ii. A. gracillimum. 



2. Pinnules rhombic in shape (being 

 obliquely wedge-shaped at the 

 base). 



12. A. coacinnum. 



(II) Fronds about as broad as long. 



13. A. collisii. 



(e) Pedatum Group. Frond not pinnate- 

 ly branched but dichotomously forked with 

 numerous pinnae springing from the upper side 

 of each of the branches. 



14. A. hispidnlum. 



i. Adiantwn luttulatum Burm. 



Stipes 4-6 inches long, black to brown, wiry, 

 polished. Fronds often rooting at the tip, 6-12 

 inches long, 3 inches broad, pinnate, pinnae 

 distinctly stalked, half-moon shaped, f-i J inches 

 broad, J-i inch deep, frequently lobed. Rachis 

 on both surfaces naked. Texture herbaceous. 



