CHAEACTERS OP TEIBES AND GENERA. 251 



lllusfc. Hook, and Bauer. Gen. Fil., t. o-i ; Scliott. Gen. 

 Fil., t. 5 ; Moore Ind. Fil., p. 93 B ; J. Sm. Ferns 

 Brit, and For., %. 134. 



Obs, — The fronds being articulate with the caudex, and 

 the pinnte and pinnules articulate with the rachis, as also the 

 sori being- confluent in a transverse broad line, between the 

 costa and the margin of the pinnules, marks this as a genus 

 distinct from AlsopJiila. The arborescent stem and the 

 articulated character of the fronds, being similar to several 

 species of Cyailiea as already noticed, gives it a claim to 

 rank in the present tribe. 



Sp. T. excelsa (Pr.) {AlsopJiila Tcenitis, Hook. Sp. PH., 

 Mart. Flor. Bras., t. 37 ; BacU. Fil. Bras., t. 40) (v v.) ; 

 T. elegans (Pr.) {Mart. Flora. Bras., t. 38.) 



Obs. — In some specimens of T. elegans the line of sori is 

 not so complete as in T. excelsa. 



134. — LoPHOSOELA, Presl. (1847.) 

 Also'phila, sp., HooJc. Sp>. Fil. 



Yemation fasciculate, erect, arborescent, 6 to 8 feet high, 

 densely laniferous. Fronds 3 or more feet in length, com- 

 pound multifid, glaucous beneath. Veins simple or forked, 

 venules free, their apices clavate. Eecepiacles small (not 

 elevated), sub-terminal. Sori punctiform, solitary on the 

 ultimate dents or laoinEe, criniferous. 



Type. Polypodium pruinatum, Siv. 



Illust. Schk. Fil., t. 25 B. ; J. Sm., Ferns, Brit, and 

 For., fig. 135. 



Obs. — The Fern on which this genus is founded is a 

 native of .Jamaica, Mexico, extending through tropical 

 America, to Chili and the Island of Juan Fernandez. It 

 was early described by Swartz under the name of Polijpo- 



