158 



F I L I C E S. 



same, showing an indusium and the insertion of the sporangia. 1 c. 

 Scale from base of a stipe. 1 d. Sporangium. — More or less magnified. 



26. ASPLENIUM CONTIGUUM, Kaulf. 



Asplenium contiguum, Kaulf. Enum. Fil. p. 172 ; Hook. & Arn. Bot. Beech. Voy. 

 p. 106. 



Hab. Sandwich Islands. 



The stipe of this is semiterete, sulcate in front, smooth, and from 

 6 to 8 inches long. Fronds nearly twice the length of the stipe, and 

 pinnate. Pinnae 2 to 2 J inches long, subpetiolate, striate, linear- 

 lanceolate, attenuate, with an inciso-serrate margin, the serratures 

 dentate, the superior base roundly cuneate or auriculate, the inferior 

 half as if cut off and attenuate. Rhachis frequently bearing a few 

 slender paleae. Sori contiguous to and nearly parallel with the almost 

 evanescent costa. 



Very closely allied to the A. falcatum of Lamarck, and only dis- 

 tinguished from it by the more direct and narrower pinnae, and the 

 sori more parallel with the costa. It is very distinct from A. hor- 

 ridum, Kaulf, of which Gaudichaud considered it only a variety. 



27. Asplenium filiforme, Kaulf. 



Asplenium filiforme, Kaulf. Enum. Fil. p. 172; Hook. & Am. Bot. Beech. Voy. 

 p. 106. 



Hab. Maui, Sandwich Islands. 



This differs from the preceding species only in its longer and nar- 

 rower, lanceolate-linear, attenuate, and even setaceous pinnae. 



28. Asplenium horridum, Kaulf. 



Asplenium horridum, Kaulf. Enum. Fil. p. 173 ; Hook. & Am. Bot. Beech. Voy. 

 p. 106. 



