CHARACTERS OF TRIBES ASD GENERA. 89 



2. — Pectinatum Group. 



Fronds linear or broadly elliptical, erect, somewtiat 

 rig-id, more or less deeply pinnatifid. 



Ex. P. Sclikalirii, Radd. (v v.) ; P. laxifolinm, Linn. ; 

 P. pectinatam, Ijinn. (v v.) ; P. Paradiseaj, Lang et Fiseh 

 (v V.) ; P. pulchrum, Mart, et Gal. 



3. — Sororium Groiip. 



Fronds erect, pinnate, pinnae sessile or petiolate, smooth 

 or pubescent. Veins three to four times forked. 



Ex. P. Martcnsii, Mett. (v v.), ; P. Hartwogianum, 

 Eooh. ; P. puberulum, ScJilecht. ; P. subpetiolatum, Eooh, 

 (v V.) ; P. sororium, H.B.E. (v v.) ; P. fi-ateruum, ScJdechi. 

 (vv.) 



4. — Vulgare Group. 



Fronds erect, generally thick, coriaceous, smooth, fari- 

 nose or squamiferous, elliptical-lanceolate, pinnatifid, rarel}' 

 simple or deltoid, and bi-tripinnatclj' laciniated. 



Ex. P. chrysolepis, Houh. ; P. farinosuni, Eooh. ; P. 

 argyratum, Borij. ; P. vulgai-e, Linn. ; P. macrocarpum, 

 Pr. ; P. plebejum, ScJdecht. (v v.) ; P. madrense, /. Sm. ; 

 P. Skinneri, Eool:. : P. fallax, SoJdecM. ; P. Prederich- 

 sthalianum, Euitze. ; P. murorum, Euol:. ; P. onustum, 

 Eoolc. ; P. jDcllucidum, Eaidf. 



Obs. — The fi-onds of the latter sijeoies and P. vulgare 

 vary from pinnatifid to bi-pinnatifid, and even more divided 

 and crested, of which P. vulgare presents many forms. 



** Veins anastomosing in various ways. 



Sect. S.^GONIOPHLEELE. 



9. — GONIOPHLEBIUM (1828) {Prcsl in part, 1830). 

 Poly|Dodium, sect. Goniophlebinm, Plume. ; Marg'inaria, 

 in part Presl ; Polypodium ; sp., auct., Eook. Sp. Ftl. 



