POLTPODIE^. Ixxiii. 



(usually) on the converging apices of two or more included 

 veinlets. Veins pinnate or pinnato-furcate from a central costa ; 

 the venules reticulated in variously-formed usually elongated 

 areoles, which produce (a few) sterile excurrent veinlets, especially 

 near the margin ; the costal areples transverse, usually void. 



Pronds herbaceous or coriaceous, simple pinnatifid or pinnate. 

 Sori transversely uni- bi- tri- or multi-serial, usually borne on the 

 apex of converging veins, sometimes compital, rarely situated on 

 simple veins. Ehizome creeping; fronds articulated. — One or 

 two pinnate species are intermediate between GoniopMebiwm and 

 Phleiodium, having the sori generally on simple veins, but also 

 producing them on the apices of converging veins, and having also 

 sterile, i.e., empty costal areoles. These latter are the distinguish- 

 ing peculiarities of this genus ; which, however, in its most 

 genuine species produces here and there compital sori, (i.e., with 

 the receptacle forming a point whence several veins radiate), and 

 hence is not much removed from Fleopeltis, as here extended. 



§ Ch/rygopterie. — Sori usuaJlj at the apex of converging veins, the costal 

 areoles void. 



Ex. : P. aureuiQ, J. Sm. I P. areolatum, J. Sm. 



P. decumaniun, J, Sm, { P. sporadocarpum, J. Sm, 



§ Margimiriopsis, — Sori usually at the apex of single veins, the costal 

 areoles void. 

 Ex, : P. insBquale, Moore, 



105. GONIOPHLEBITTM, Mume, Mora Java, 132 (§); 

 Fresl, Tent. Fterid, 185. 



MAB&iifABiA, Presl, (uon Sory); Stwammia, IPresl iu part; Plettho- 

 GOiauM, Prsal; Lepictstib, J", Smith in part; Lopholepis, J. Smith; 

 ScHELLOLEPis, J. Smith; Cetpsinus, Fresl ; Ceaspedaeia, Imk in 

 part : F^e ; Poltpodii sp., Auct. ; Ghammitidis ap,, Besvaux ; Cam- 

 pyloneuei sp., .liwci. ; Aaoamc^i Bp,, Lcmgsderff et Macher i Mecosohi 

 sp., Klotzsch, 



Sori non-indusiate, globose (rarely oblong); the receptacles 

 punctiform (rarely oblong), situated at the apex of the lower 

 anterior venules, or of the simple excurrent free veinlets, one 

 being included within each areole. Veins forked or pinnate 

 from a central costa j the lower anterior venmles usually free and 



