CHAEACTEES OF TEIBES AND GENEEA. 323 



183. — MiCEOPODiuM, MetL 



Annals of the Leyden Museum. 



Asplenium and Scolojiendrium sji., Hook. Sp. Fil. 



Vernation uniserial, sarmentum slender, wii-y, scandent. 

 Fronds distant, simple, linear-lanceolate, rarely pinnate, 

 1 to 2 feet in length, 1 to 3 inches in breadth, smooth. Stipes 

 in some articulate with the oaudex. Veins simple or forked, 

 sporang'iferous on one or both sides. Indwsium simple as in 

 Asplenium, binate as in Diplazium., or oppositely conniving as 

 in Scolopendri'um. Soi^i linear continuous, having- an elevated 

 ridge or crest on their exterior side or between them. 



Type. Scolopendrium longifoUum, Presl. 



Ocs. — The principal character that has led Mettenius to 

 separate the species of this genus from Aspdcnium, is that 

 the vernation of several of them is apparently articulate, as 

 also having- an elevated ridge on the exterior side of simple 

 sori, and also between the connivent sori. The articulated 

 vernation, if it really is so, is confined in this family to this 

 and the preceding genus, but as the nature of the fronds 

 agree with Asplenium, I therefore deem it best to place 

 them here ; they form a very natural g-roup, distinguished 

 by their slender creeping- caudes from the g-reat mass 

 of Asplenium. 



Sp. M. lanceum {Thunb. Ic. Plant. Jap., Pec. 11. t. 18 ; 

 Asplenium suhsinuatum, ZIooi. and Orev. Ic. PH., t. 27 ; A. 

 sect. Trihlemma, J. Sm. Ferns Brit, and For., p. 209). 



Obs. — The soi'i of Asplenium, Pipla'dmn, and Scolopen- 

 drium, are often produced on the same frond of this species. 



M. vittfeforme, Ilett. (^Car.) (Aspleniitui Amhoinense, 

 Brack. Fil., U. S. Expl. F,cp., p. 117, t. 19, f. 2) ; M. Sun- 

 dense (Plume) ; M. Fijeense (Brad-. Fil. U. 8. Expl. Exp., 

 t. 19, /. 1) ; M. scolopendrioidea, /. Sm. {PEook, Ic, PI., 



