BOTANY. 



CRYPTOGAMIA. 



FILICES. 



Div. L POLYPODIACEJ], E. Br. 



Tribe I. POLYPODIES, J. S m. 

 1. G R A M M I T I S, Sw., J. Sm. 



1. Grammitis nana, Sp. Nov. 



G. rhizomaie brevi repente paleaceo; fronde Integra Mneari-laneeolata 

 ohtusa basi attenuate; venis furcatis ; soris planis obliquis. 



Hab. Orange Harbour, Tierra del Fuego : among loose rocks ; 

 frequent. 



Rootstock about one inch long, slender, creeping, covered with pale 

 brown reticulated scales : rootlets hard, filiform, and rufous-tomentose. 

 Fronds entire, numerous, from one to 4 inches in length, linear- 

 lanceolate, obtuse at the point, very much attenuated at the base. Veins 

 forked, immersed, not perceptible to the naked eye, except when held 

 up between it and the light. Sori plane, oblique, produced on the 

 upper half of the frond, the sporangia becoming confluent. 



