CHARACTERS OF TRIBES AND GENERA. 89 



2. Pectinatum Group. 



Fronds linear or broadly elliptical, erect, somewhat 

 rigid, more or less deeply pinnatifid. 



Ex. P. Schkuhrii, Radd. (v v.) ; P. laxifolium, Linn. ; 

 P. pectinatum, Linn, (v v.) ; P. Paradiseas, Lang et FiscJi 

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



3. Sororium Group. 



Fronds erect, pinnate, pinnae sessile or petiolate, smooth 

 or pubescent. Veins three to four times forked. 



Ex. P. Martensii, Mett. (v v.), ; P. Hartwegianum, 

 Hook. ; P. puberulum, Schlecht. ; P. subpetiolatum, Hook, 

 (v v.) ; P. sororium, H.B.K. (v v.) ; P. fraternum, Schlecht. 



(vv.) 



4. Vulgare Group. 



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

 nose or squamiferous, elliptical-lanceolate, pinnatifid, rarely 

 simple or deltoid, and bi-tripinnately laciniated. 



Ex. P. chrysolepis, Hook. ; P. farinosum, Hook. ; P. 

 argyratum, Eory. ; P. vulgare, Linn. P. macrocarpum, 

 Pr. ; P. plebejum, Schlecht. (y v.) ; P. madrense, /. 8m. ; 

 P. Skinneri, Hook. ; P. fallax, Schlecht. ; P. Frederich- 

 sthalianum, Kunze. ; P. murorum, Hook. P. onustum, 

 Hook. ; P. pellucidum, Kaulf. 



OBS. The fronds of the latter species and P. vulgare 

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

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



** Veins anastomosing in various ways. 

 Sect. 2. GONIOPHLEBIJ:. 



9. GONIOPHLEBIUM (1828) (Presl in part, 1836). 

 Polypodium, sect. Goniophlebium, Blume. ; Marginaria, 

 in part Presl ; Polypodium ; sp., auct., Hook. Sp. Fil. 



