186 J r L iC E& 



.* * * Frondes tripinnatos. 



44. Asplenium acutum, Bory. 



Asplenium acutum, Bory, in Willd. Spec. PI. 5, p. 347; Kaulf. Enum. Fil. p. 176. 



Hab. Island of Madeira; near the summit of the Pico Ruivo. 



Remarkable for the long acuminate points of the frond, and the 

 very acute, slightly hidentate divisions. 



45. Asplenium laserpitiifolium, Lam. 



Asplenium laserpitiifolium, Lam. ex Sw. Syn. Fil. p. 85; Willd. Spec. PL 5, p. 

 347; Kaulf. Enum. Fil. p. 176; Gaud. Bot. Freyc. Voy. p. 321. 



Hab. Samoan and iFeejee Islands. Tahiti, Society Islands. 



The fronds from young plants of this species might very readily be 

 mistaken for those of A cuneatum, Swartz. 



-46. Asplenium rachirhizon, Raddi 



Asplenium rachirhizon, Raddi, Plant. Brasil. p. 39, t. 56. 



Hab. Organ Mountains, Brazil. 



This, as Raddi has justly observed, "is a very elegant species; it has 

 a stipe about a span long and as thick as a crowquill, black, glossy, 

 and sulcate in front. Fronds 15 to 18 inches long, glabrous and tri- 

 pinnate: primary pinnae nearly opposite, diverging, ^nd imbricated. 

 Pinnules 3 lines long, membranaceous, ovate, acute, bifid, or emargi- 

 nate. Rhachis very much elongated, filiform, and rooting at the 

 point. Sori short,, semi-oblong, solitary on each pinnule. Indusium 

 entire, of a pale straw colour. 



