Ta;NiTrDEa). — TiiTjLEiEiB. zxsai. 



elongated simple areoles each side the costa; the arcs sporan* 

 giferouB in a sub-marginal line. 



Fronds lobate, sub-coriaeeoua ; the veins obscure. Khizome 

 short, creeping, sub-globose. — This fern is quite like Tceniopsis 

 fwcata 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. subpinnatifiduni (Cuspidaria, JVe.) 



(e) Veins straight, combined, (where fertile) hy the marginal 

 receptacle. 



37. T.fflNIOPSIS, J. Smith, Book. Jowrn. Sot. iv. 67. 



TiENIOPTEEIS, Soo&ej*; Ampelopteeis, ^ofozefe ; CusplDAEl^ sp., P^c; 



DiCEAJS'OGT.OSSI Bp., J. Smith; T^NITIDIS (§ CHILOGKAMMATIS) Sp., 



Blwme; V1TTAEI2E sp., Auct.i Ftebopsisis ep,, Beauaux; PlEBrDls 

 sp., lAlimmis, 



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

 marginal, immersed or superficial. Veins simple or forked from 

 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. Bhi- 



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



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



extrorse-marginal furrow, 



Ex. L T. lineata, J. Sm. \ T. Porbesii (Tseniopteris, SoohJ 



T. stipitata, (Vittaria, Xze.J T. zeylauica, (Vittaria, Me J 

 T. fUrcata {Pteris, Lin.J \ T. tricuspidata (Pteris, Lin J 



§ VlTTAEIB^a:. 



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



EuifonrAEiA, MiiiJer; Aeistaeia, JlfiSHer; FABBiroHXUAsiA. Jlfii2^, 

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



CMarch, 1897.] Q 



