AN ENUMERATION OF CULTIVATED FERNS. 191 
18. P. aspercaulis, Wall. ; Lowe’s Ferns, 4, t. 8. P. pecti- 
nata, Lon, — var. rubro-neryia. P. rubro-nervia, 
Linden . — East Indies. 
19. P. flabellata, Tlmnb . — South Africa. 
20. P. arguta, Ait ; Lowe’s Ferns, 3, t. 41. P. allosora, Link. 
P. palustris, Poir. Mongonia palustris, Presl . — 
Madeira. 
21. P. Kingiana, Endl. ; Lowe’s Ferns, 3, t. 46. — Norfolk 
Island. 
22. P. tremula, B. Br. ; Hook. Sp. Fil. 2, t. 120 B ; Lowe’s 
Ferns, 3, t. 45. P. chrysocarpa, Link . — Australia 
and New Zealand. 
23. P. lata, Link ; Lowe’s Ferns, 4, t. 6. — Brazil. 
24. P. paleaeea, Boxb. in Beatson’s FI. of St. Helena, p. 349;. 
Hook. Sp. Fil. 3, p. 186. — St. Helena. 
ft Fronds tripa/rtitely branched, deltoid, generally 
guadripinnate. 
25. P. deflexa, Link, Enum. Hort. Berol. — Tropical America. 
26. P. deeussata, J. Sm. Enum. Fil. Pldlipp. (1841). P. 
patens. Hook. Sp. Fil. 2, p. 177, t. 137. — Ceylon, 
Luzon. 
27. P. laciniata, Willd. ; Presl, Pterid. t. 5,/. 23; Hook. Sp. 
Fil. 2, 1. 132 B . — West Indies. 
28. P. Gh.eisbegh.tii, .7. Sm. Lonchitis Gheisbeghtii, Linden, 
Cat.—-' Tropical America. 
*** Vernation umiserial, distant, sarmentose. 
f Sarmentum slender, epigceous. 
29. P. scaberula, A. Rich ,- Hook. Sp. Fil. t. 93 A ; Lowe’s 
Ferns, 4, 1. 10. — New Zealand. 
ff Sarmentum thick, fleshy, hypogaeous. 
30. P. aquilina, Linn.; Schlc. Fil. t. 95 et 96; Eng. Bob 
t. 1679 ; Lindl. and Moore’s Brit. Ferns, t. 44 ; 
S owerby’s Ferns, t. 38 ; Hook. Brit. Ferns, 38. — 
Tropica] and Temperate Zones of both Hemispheres. 
