58 
(I) Fronds longer than broad. 
(t) Sori roundish or transversely 
oblong. 
1. Pinnules distinctly wedge-shaped 
at the base. Sori in shallow 
depressions of the lobes. 
(1) Pinnules deciduous. 
7. A, tenerum. 
(2) Pinnules not deciduous. 
8. 4. capillus venerts. 
2. Pinnules roundish, being straight, 
almost wedge-shaped or round- 
ed at the base. Sori in deep 
hollows of the lobes. 
g. A. aethtopicum. 
() Sori obversely kidney-shaped in 
deep round hollows of the lobes. 
t. Pinnules distinctly crenate at 
the base. 
(1) Frond 3-4 pinnate. Pinnules 
4+ inch broad. 
10. A. cuneatume 
