POLYPODIACEJE. 115 



This species has a consistency and form of frond in many respects 

 approaching very closely to others of the genus: we fear, therefore, 

 that species have been referred hither by authors which do not pro- 

 perly belong to it. Willdenow describes the stipe as from 4 to 6 inches 

 long; whereas in ours it is usually from 12 to 18 inches. 



10. Pteris Blumeana, Agardh. 



Pteris Blumeana, Agardh, Gen. Pterid. p. 22. 

 P. scabra t Gaud. Bot. Freyc. Voy. p. 390. 

 P. normalis, Blume, Enum. Plant. Jav. p. 211. 



Hab. Tahiti, Society Islands. Samoan Islands ; rare. 



This is distinguished from the P. nemoralis of Willdenow by its 

 larger fronds, more deeply pinnatifid pinnae, with longer linear seg- 

 ments, and by the presence of numerous appressed setae on the upper 

 side of the costa. 



11. Pteris excelsa, Gaud. 



Pteris excelsa, Gaud. Bot. Freyc. Voy. p. 388; Agardh. Gen. Pterid. p. 21. 



Hab. Sandwich Islands; frequent. 



A noble species, with smooth, upright, pinnate fronds, varying in 

 height from 3 to 5 feet. Pinnae sessile, ascending, elongated-lanceo- 

 late, pinnatisect ; the lower pair usually bipartite. Segments from 50 

 to 70 in number, lanceolate, acuminate, subfalcate, the apex more or 

 less serrate. Stipe and rhachis smooth, angular, sulcate, of a pale 

 straw, or of a chestnut-brown colour. 



12. Pteris terminalis, Wallich. 



Pteris terminalis, Wallich, ex Agardh, Gen. Pterid. p. 20. 



Hab. Mountains near Banos, Luzon, Philippine Islands. 



