CHAEACTEES OF TRIBES AND GENEEA. 267 



the genera Schizolepton, Dlctijozipliliun, and Isoloma, which 

 although agreeing- in the technical character of the sori, 

 are nevertheless widely distinct in vernation and habit, 

 as will be seen on reference to their characters in theii' 

 respective places. 



The species of this tribe are widely distributed, generally 

 natives of the troijics of both the Eastern and Western 

 hemisphei-es, a few extending to New Zealand in the 

 South. 



148.— LiNDSJEA, Drij. (1793). 

 Hooh. Sj]. Fa. 

 Vernation sarmentose, often short. Fronds distant or 

 contiguous and sub-fasciculate, simple, pinnate, or bi-tri- 

 pinnate ; pinnaa and pinnules oblong, falcate, lunulate, 

 upper margin fertile only ; costa3 eccentric. Veins ra- 

 diating, or unilateral forked ; their apices (in the fertile 

 segments) combined by a transverse, marginal receptacle, 

 forming a linear, continuous or interrupted marginal 

 sorus. Indusium linear, its outer margin free, usually 

 shorter than the indusEeform margin. 

 Type. Lindscea trapes if or ints, Frijander. 

 lUust. Hook, and Bauer, Gen. Pil, t. G3, A ; Moore Ind. 

 Fil., p. 22 ; J. Sm. Ferns, Brit, and For., fig. 118 ; 

 Hook. Syn. Fil., t. 2, fig. 20, a. 

 Obs. — The fronds of some of the species of this genus 

 vary from being simply pinnate, to bi- or even tri-pinnate, 

 that authors have described the different forms as distinct 

 species. They are ohieily tropical, L. trichomanoides being 

 a native of New Zealand. 



* Fronds simple, cordate-reniform. 

 Sp. L. reniformis. Fry. (v v.) ; L. sagittata, Fry. (v v.) 



