J. SMITH ON THE GENERA OF FERNS. 57 



Examp. 8. G. lachnopus ( Wall.) 9. G. amoenuni ( Wall.) 

 10. G. argutum ( Wall.) 11. G. verrucosum ( Wall.) — lUust. 

 Bauer's gen. Jil. t. 14. 



**** GoNioPHLEBi.E verae. 



Ithizoma thick. Fronds 2 to 4 feet high, usually smooth, 

 simple, pinnatifid or pinnate. Sort naked, uniserial, or 

 multiserial. 



Examp. 12. G. pectinatum. (Linn.) 13. G. attenuatum. 

 (Hu^nh.)\A. G. neriifolium.(^>S^K'.^ 15. G. dissimile. ("i,?(ni.) 

 Illust. Hook, fjen.fil. t. 70. b. 



18. NiPHOBOLus. Kaulf. 

 Veins obscure, or evident, and costseform ; venules trans- 

 versely anastomosing, producing on their exterior side two or 

 more excurrent free veinlets, which are sporangiferous on 

 their apices. Sori round, protruding through dense, stellated 

 pubescence. — Rhizoraa creeping or ccespitose. Fronds vary^ 

 ing from a few Inches to 2 feet long., the fertile often con- 

 tracted, simple, linear-lanceolate, thick and fleshy or cona- 

 ceous, covered with stellated, sessile or pedicellate scales 

 or tomentum, rarely smooth. Veins (when evident) parallel, 

 combined by transverse parallel venules, forming rhomboidal 

 areoles, each containing 2 to 5 or more soriferous veinlets, 

 forming many parallel transverse rows of sori between the 

 costceform veins ; or the sori are irregular and usually con- 

 fluent, 



* Repenteee. 



Rhizoma creeping. Fertile fronds contracted and fleshy ; 

 venation obscure. Sori irregular. 



Examp. ]. N. rupestris; Spreng. 2. N. pertusus; Spreng. 

 3. N. bicolor; Kaulf. 4. N. glaber; Kaulf. 5. N. lingua; 

 (Polypodium, Thunb.) Rlust. Hook.et Grev. ic.fil. t. 44, 93. 

 Hook, ex.fi. t. 162. 



** CcBspitosecs. 



Rhizoma caespitose. Fronds uniform, coriaceous. Veins 

 evident, costeeform. 



Examp. 6. N. flocculosus ; Spreng. 7. N. costatus ; PresU 

 8. N. splendens ; J. Sm. — lilust. Bhime FL Jav. t. 20 to 27. 



Journ. of not. Vol. IV. No. 26. July, 1841. h 



