t 



xllT. GBNEBA OP PEEN S : 



Son indusiate, marginal, linear, continuous ; the receptacles 

 linear transverse, uniting the apices of the veins. Ind«si^lm of 

 the same form, membranaceous. VeiTu simple or forked from a 

 central costa, uniformly reticulated, evident or obscure, the 

 hexagonal simple areoles universal j or, rarely, the basal portion 

 of the veins parallel. 



Pronds herbaceous or coriaceous, simple pedate palmate pin- 

 nate or bi-tri-pinuate. Ehizome short, erect or creeping. — We 

 have not considered the venation of the § Set&rophlehia as suffi- 

 ciently different from that which is typical of this genus to 

 necessitate its removal ; and assuredly that of the § Doryopteris 

 is not. 



§ MeteropTileUa.—Neam evident, parallel below, closely reticulated near 

 the margin. 

 Ex. : L. grandifolia, J. Sm. 

 § EuUiobrochia. — Veins evident, Tmiformly reticulated. 



Ex. ; L. denticulata, Fresl. I L. Beecheyana (Pteris, AgardhJ 



L. aplendens, Fresl, L, vespertilionis, Fresh ' 



L. coEoanSj Fresl. \ L. macroptera, J. 8m, 



§ Dorj/opteris. — ^Veins obscure, uniformly reticulated. 



Ex. : L. sagittaefolia, Fresl. 1 L. hederaeea, Fresl, 



L. pedata, Fresl. 1 L. palmata, Fresl. 



L. dura (Pteris, WiUd.J \ L. articulata, Fresl. 



(d) FesM compoimdh) reticulated, with included free veimlets, 

 56. AMPHIBLESTRA, Presl, Tent, Pter. 150. 



Ptbbidis Bp,, Auct. 



Sort indusiate, marginal, linear, continuous or interrupted ; 

 the receptacles linear, uniting the marginal veinlets. Tndusium 

 narrow, membranaceous. Vein* pinnate from a central costa, 

 prominent; venules compoundly Euiastomosing, forming trans- 

 versely arcuate primary areoles, and irregular sub-hexagonal 

 secondaiy ones ; and having variously directed straight or in- 

 curved free included veinlets. 



Fronds ample, membranaceous, tripartite. Bhizome short 

 erect? — A large pteroid fern, with the compound anastomosing 

 venation and aspect of true Aspidiiim, 



Ex. : A, latiiblia, Fresl, 



