. VITTABIEJE. 



elongated simple areoles each side the costaj the arcs sporan- 

 giferous in a sub-marginal line. 



Fronds lobate, sub-coriaceous; the veins obscure. Ehizome 

 short, creeping, sub-globose. This fern is quite like Tceniop&ii 

 furcata in general appearance, but the venation is totally different : 

 here, always combined in a series of arches, of which the outer 

 part forms the receptacles ; but in that, straight and combined 

 only in the fertile fronds by a straight marginal vein forming the 

 receptacle. 



Ex. : D. subpinnatifldum (Cuspidaria, Fte.) 



(e) Veins straight, combined (where fertile} by the marginal 

 receptacle. 



37. T-ZENIOPSIS, J. Smith, HooTc. Journ. Sot. iv. 67. 



TjBiriopTBBis, HooTcer; AMPBLOPTEKIS, Elotszcli ; CUSPIDAEI sp., Fit; 



DlCEANOGLOSSI gp., J. Smith; T.SNITIDIS ( CHILOGRAMMATIs) Bp., 



Slume; VITTABUE sp., Auct.; PTEBOPSIDIS sp., Denvaux; PTEBIDIS 

 sp., LiniKeui. 



Sori non-indusiate, linear, continuous; the receptacles sub- 

 marginal, immersed or superficial. Veins simple or forked froTi 

 a central costa; venules parallel, combined at or near their 

 apices (only where fertile) by the transverse, i.e., the longitu- 

 dinal receptacle, otherwise free. 



Fronds simple or lobate, coriaceous ; the veins obscure. Rhi- 

 zome short creeping, or tufted. We include in this genus all 

 the vittarioid species in which the sori is not placed in a distinct 

 eitrorse-marginal furrow. 



Ex. : T. lineata, J. Sm. I T. Forbesii (Taeniopteris, nook.) 



T. stipitata (Vittaria, Kze.) T. zeylanlca, (Vittaria, Fee.) 

 T. furcata (Pteris, Lin.J \ T. tricuspidata (Pteris, Lin.) 



38. VITTARIA, Smith, Mem. Acad. Turin, v. 413, t. 9. 

 EUWCIHTAEIA, "MUller; ABISTABIA, M&ller ; PABEN CHTMAEIA. Miiller. 

 Sori non-indusiate, linear, continuous ; the receptacles lying in 



LMarch, 185T J 



