F I L I C E S. 



que represents very truthfully the outline of the frond, and the 

 thick, creeping rootstock. It is a well-known species both in the 

 herbarium and the greenhouse : in the latter it has long been culti- 

 vated as an ornamental plant. 



16. DRYNARIA, Bonj, J. Sm. 

 (Polypodii Spec, Auct. Dipteris, Reinw. Phtmatodes, Presl. Miorosorum, Link.) 



* Frondes integrce uniformes. 

 f Sort superficial, uniseriales inter costam et marginem vel venas primarias. 



1. Drynaria acuminata, Sp. Nov. 



D. rhizomate gracili r&pente paleaceo; frondibus integris glabris lanceo- 

 latis acuminatis obtusis ; soris magnis rotundis distantibus uniseriali- 

 bus ad apicem usque frondis extensis. 



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



Rootstock long, slender, and creeping, much branched, and clinging 

 by its brown tomentose rootlets to rocks and trunks of trees, the sur- 

 face thinly covered with dark gray, elongated, reticulated, spinulose- 

 fimbriated palece. Stipes a quarter to half an inch in length, naked 

 and margined. Fronds 1£ to 4 inches long, and about 6 lines broad, 

 subcoriaceous, naked, glabrous, lanceolate, entire, and gradually con- 

 tracted into a narrow obtuse point, the base decurrent on the short 

 stipe ; the costa slender and about equally prominent on both sides. 

 Sori large, round, or slightly oval, extending to the point of the frond, 

 and forming a single row, equidistant between the margin and costa. 



2. Drynaria elongata. 



D. rhizomate repente; frondibus 2?aucis lineari-lanceolatis elongatis acu- 

 minatis basi attenuatis coriaceis utrinque glabris supra punctis mgris 



