POLYPODIACE^. 



95 



Kaulfuss refers to this the A. asarifolium of Willdenow, which is a 

 native of the Isle of Bourbon. 



* * Frondes pinnatifidce. 



2. Adiantum lunulatum, Burm. 



A. frondibus pinnatis; pinnis petiolatis quasi dimidiatis oblongo-lunu- 

 latis obtusis ?nargine superiori repando-dentatis basi oblique cuneatis; 

 saris linear ibus interrupts . 



Adiantum lunulatum, Burm. in Willd. Spec. PL 5, p. 430 ; Kaulf. Enum. Fil. p. 

 205; Don, Prodr. Flor. Nepal, p. 16; Hook. & Grev. Ic. Fil. t. 104. 



Hab. Samoan and Feejee Islands. Luzon, Philippine Islands. 



In our Samoan specimens the fronds are young and without fructi- 

 fication, terminating in a filiform, naked rhachis, which extends 2 or 

 3 inches beyond where the pinnae cease, and roots at the point; a 

 character already noticed by Kaulfuss. 



3. Adiantum caudatum, Linn. 



A. frondibus lineari-oblongis pinnatis; pinnis alternis oblongis obtusis 

 dimidiatis utrinque liivsutis margine superiori i?icisis basi truncato- 

 cuneatis; rhaclii hirsuta apice producto nudo radicante; soris ob- 

 longis; indusio piloso. 



Adiantum caudatum, Linn.; Sw. Syn. Fil. p. 122; Willd. Spec. PI. 5, p. 431; 

 Kaulf. Enum. Fil. p. 201. 



Hab. Vicinity of Banos, Luzon, Philippine Islands. 



Plant forming dense patches. Fronds linear-oblong and pinnate, 

 with a stipe about an inch long ; the rhachis lengthened into a naked 

 filiform point, which throws out roots at its extremity, and ultimately 

 produces a young plant. Pinnce half an inch long, alternate, oblong, 

 obtuse, dimidiate; superior base truncate-cuneate ; upper margin deeply 



