100 FERNS : BRITISH AND FOREIGN. 



* Rhizomes elongated, surculose. Fronds distant. Primary 

 veins undefined. 



1. N. mpestris, Spr. ; Hook, et Grev. Ic. Fil t. 93 ; Lowe's 



Ferns, 1, t. 20. Polypodium rupestre, R. Br. Cras- 

 pedaria rupestris, Link. Australia. Tr. 



2. W. bicolor, Kaulf. ; Hook, et G-rev. Ic. Fil t. 44. New 



Zealand. Tr. 



3. N. adnascens, Kaulf. ; Hook. Gard. Ferns, t. 19. Poly- 



podium adnascens, Sw. Syn. Fil. t. 2, /. 2. Nipho- 

 bolus pertusus, Spr. ; Lowe's Ferns, 1, t. 21. Poly- 

 podium pertusum, Roxb. ; Hook. Exot. Fil. t. 162. 

 East Indies. 



4. N. Lingua, Spr. ; Kunze in Schk. Fil. Supp. t. 63. Lowe's 



Ferns, 1, t. 22. Acrosticlmm Lingua, Thunb. Fil. 

 Jap. t. 33 ; Schk. Fil. t. 1. Polypodium Lingua, Sw. ; 

 Lang, et Fisch. Ic. Fil. t. 5. Cyclophorus Lingua, 

 Desv. Polycampium Lingua, Presl. Niphobolus 

 Sinensis, Hort. East Indies and China. 



** Rhizomes short, caespitose. Fronds contiguous. Primary 

 veiw$ generally evident. 



5. N. Gardner!, Kunze ; Hook. Fil. Exot. t. 68 ; Lowe's New 



Ferns, t. 38 B. Polypodium Gardneri, Metten. Gen. 

 Polypodium, p. 129. Niphobolus acrostichoides, Cat. 

 Fil. Hort. Kew., non Polypodium (Niphobolus) acro- 

 stichoides, Forst. Ceylon. 



6. N. costatus, Presl. Polypodium costatum, Wall. East 



Indies. 



27. CAMPYLONEURUM, Presl. 



Rhizome short and caespitose or elongated, often subhypo- 

 geous. Fronds simple or very rarely pinnate, coriaceous, rigid, 

 smooth, 1-2 feet high. Veins costasform or undefined, elevated 



