polypodiace^:. 159 



Hab. Sandwich Islands : frequent. 



In this we have a very robust and coarse plant, with a nearly round 

 stipe, having a shallow groove in front, from 8 to 10 inches long, 

 about the thickness of a swan's quill, and, together with the rhachis, 

 densely rufous-hirsute. Fronds 2 \ to 4 feet long, rigid, coriaceous, 

 and pinnate. Pinnae approximate, from 4 to 7 inches long by 6 lines 

 broad, linear-lanceolate, attenuate, inciso-lobate ; the lobes oblong and 

 crenate at the apex, the lower and superior one the broadest. Almost 

 all the sori are contiguous to and parallel with the costa ; in the latter 

 particular resembling the A. serra of Langsdorff and Fischer ; while, 

 in the form and division of the pinnae its affinity is more with the 

 A. caudatum of Forster. 



*- * Frondes bipinnatm, 



29. Asplenium Mackaei, Hook. & Grev. 



Asplenium Macraei, Hook. & Grev. Ic. Fil. t. 217. 



Hab. Sandwich Islands : in open and dry mountain ridges. 



In our numerous specimens of this species we find the fronds in 

 general to be longer, and not so broadly lanceolate, as represented in 

 the Icones Filicum. 



30. Asplenium triphyllum, Presl. 



Asplenium triphyllum, Presl, ex Hook. & Grev. Ic. Fil. t. 88. 

 Hab. Banos, Andes of Peru : in fissures of rocks. 



A charming little species, not over 4 inches in length, with the 

 fronds decumbent, and proliferous both at the base and apex. The 

 plant is admirably illustrated in the Icones Filicum, above cited. 



31. Asplenium imbricatum, Book. & Grev. 

 A. stipitibus nudis gracilibus semiteretibus ; frondibm lineari-lanceolatis 



