296 



CHAEACTEES OF TKIUES AND GENERA. 



their fronds, which with the vernation being erect or de- 

 cumbent, enables us to arrange the species as follows. 



* Yernatioii fasciculate, decumhent, c(e.qntose. 

 t Fronds pinnate. 



Sp. P, longifolia, Lian. (v v.) 



Obs. — The wide geographical range of this plant has 

 giren rise to the multiplication of specific names, many 

 authors raising the representative of different localities to 

 the rank of species, there being no less than eighteen 

 synonyms given in the " Species Filioum." 



P. Moluccana, Bl. ; P. opaea, /. Sra. 



ft Fronds pinnate, the lower pair or more of pinnce eqiiall// 

 or unequally lobed or pinnate. 



P. pellucida, Pr. ; P. cretiea, Linn, (v v.) ; P. hetero- 

 dactyla, Eeinv:. (v v.) ; P. dactylina, HooJ,\ ; P. crenata, 

 Su\ (v V.) ; P. heteromorpha. Fee ; P. Griffithii, HooJ^. ; 

 P. serrulata, Linn, (v v.) ; P. mntilata, Linn, (v v.) ; P. 

 distans, J. Srn. ; P. umbrosa, i?. Br. (v v.) ; P. Dalhousio?, 

 NooJc. ; P. irregularis, Kanjf. ; P. marattia^folia. Hook. ; P. 

 semipinnata, Linn, (v v.) ; P. heterophylla, Linn, (v v.) 



** Vernation fasciculate, caudex erect, siwcple, rarelij 

 Cicspitose. 



t Fronds pinnate, piance pinnatifid, the loicer pair or more 

 bipartite or pinnate. 



P. longijiinnula. Wall. ; P. ai'gyrea, Moore (v v.) ; P. 

 aspericaulis. Wall, (v v.) ; P. tricolor, Linden (v v.) ; P. 

 quadriaurita, Eetz. (v v.) ; P. spinescens, Presl ; P. sulcata, 

 Linh. (v V.) ; P. repandula. Link. ; P. glaucovirens, Linden 

 (v v.) ; P. pungens, Wdld. (v v.) ; P. decussata, /. Sm, ; 



