110 



throughout to a broad winged rachis into blunt 

 linear pinnules, the lowest of which are often 

 forked. Texture leathery. Veins one to each 

 segment. Sori one to each segment. The fronds 

 are proliferous bearing bulbils in the axils of 

 many of the pinnae. 



Cultivated. 



Distribution : Malay Peninsula. Java ; 

 Sumatra ; Borneo. 



GENUS XXII. ATHYRIUM ROTH. 



(Deriv. unknown.) 



Veins free, sori more or less curved, some- 

 times horseshoe-shaped. 



I. Frond less than five feet long. 



(a) Indusium bullate (i.e. puckered). 



i. A. hohenackerianum. 



(b) Indusium not bullate. 



(i) Sori large, some at least reniform. 



2. A. macrocarpwn. 



(11) Sori never reniform. 

 i. Fronds one-pinnate, segments 

 crenate. 



3. A. falcatum. 



