164 



FERNS I BRITISH AND FOREIGN. 



79. NEPHROLEPIS, Schott. 



Vernation fasciculate, erect, stoloniferous. Fronds pinnate, 

 linear, 1-6 feet long; pinnae numerous, 

 oblong or linear-lanceolate and falcate, 

 j^> entire, dentate or deeply crenate, upper side 



/vx\ of the base auriculated, sessile, articulated 



to the rachis. Veins forked ; venules free, 

 clavate, the lower exterior one fertile. Sori 

 terminal, round, sub-marginal, transverse 

 uniserial. Indusium reniform or nearly 

 orbicular (as in figure), sometimes equal 

 and conniving with the soriferous crenule, 

 forming a marginal bilabiate cyst. 



1. N. pectinata, Schott; Lowe's Ferns, 7, 



/. 18. Aspidium pectinatum, 

 Willd. Aspidium trapezoides, 

 ScJik. Fil. t. 29 B. Aspidium 

 Schkuhrii, -Link. Tropical 

 America. 



2. N. undulata, /. 8m. ; Lowe's Ferns, 7, 



t. 20. Aspidium undulatum, Sw. 

 West Africa. 



3. N. tuberosa, Presl; Lowe's Ferns, 7, 



t. 25. Aspidium tuberosum, Bory. 

 Nephrodium edule, D. Don. 

 East Indies. 



4. N. exaltata, Schott, Gen. Fil. t. 3 ; Hook. Gen. Fil. t. 35 ; 



Lowe's Ferns, 7, 1. 19. Polypodium exaltatum, Linn. ; 

 (Plum. Fil. t. 63). Aspidium exaltatum, Sw. ; Sclik. 

 Fil. t. 32 B ; Eadd. Fil. Bras. t. 46. Nephrodium 

 exaltatum, E. Br. Tropical America. 



5. N. ensifolia, Presl ; Lowe's Ferns, 7, t. 22. Aspidium 



ensifolium, Sw. ; SchJc. Fil. t. 32. Aspidium acutum, 

 Siv. ; Schk. Fil. t. 31. Nephrolepis platyotis, Kunze ; 

 Metten. Fil. Hort. Lips. t. 26, /. 1. Tropical America 

 and Java. 



6. "N. hirsutula, Presl; Lowe's Ferns, 7, .21. Aspidium 



hirsutulum, Sw. ; ScJik. Fil. t. 33.'" Lepidoneuron hir- 

 sutulum, Fee. Aspidium pilosum, Lang, et Fisch. 

 Fil. t. 16. East Indies. 



Gen us 79. Pinna of 

 fertile frond, under 

 side. No. 5. 



