100 FERNS I BRITISH AND FOREIGN. 



* Rhizomes elongated, surculose. Fronds distant. Primary 

 veins undefined. 



1. N. rupestris, Spr. ; Hook, et Grev. Ic. Fit. t. 93 ; Lowe's 



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

 pedaria rupestris, Link. Australia. Tr. 



2. 3ST. tricolor, Kaulf.; Hook, et Grev. 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. ; Xunze in Schk. Fil. Supp. t. 63. Lowe's 



Ferns, 1, t. 22. Acrostichum Lingua, Tliurib. 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, ccespitose. Fronds contiguous. Primary 

 veins generally evident. 



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



Ferns, t. 38 J5. 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 costaturn, Wall East 



Indies. 



27. CAMPYLONEUBUM, Presl. 



Rhizome short and caespitose or elongated, often subnypo- 

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

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



