. A Monograph of the Genxxs Alari-i. 75 



Sporophylls dropped leaving petioles 



on the stipe A. ochotensis. 



ß- Blade smooth in the upper part. 



Sporophylls linear A. prcelonga Kjellm. 



Sporophylls cuneato A. dolkhorlmcliis Kjellm. 



r Blade finely striated in tlie upper 



part A. marcjinata P. et R. 



2. Matured sporophylls bearing foliose 



sterile portions at the apices 11- Metasoria. 



A. Sporophylls pinnate. 



«. Sporophylls disposed at great inter- 

 vals A. Pylaii Grey. 



ß. Sporophylls disposed at regular 

 intervals, except the lower ones. 

 Sporophylls very thick, almost 



terete A. crassifoUa Kjellm. 



Sporophylls coriaceous with cuneate 



bases A. esculenta Grey. 



Sporoyhylls coriaceous, large, with 



obtuse bases A. valida Setch. et Kjellm. 



r- Sporophylls very much approximate. 



Sporophylls obhquely ascending A. nana Schradek. 



Sporophylls patent A. grandifolia J. Ag. 



B. Sporophyhs fasciculate. 



«. Ehizines cylindrical A. lanceolata Kjellm. 



ß. Rhizines complanated and thick. 

 Sporophylls cuneate, soriferous part 



broader than the sterile crown . , A. tœniata Kjellm. 

 Sporophylls long cuneate A. angusta Kjellm. 



