CHAEACTEES OF TRIBES AND GENEEA. 321 



(v V.) ; A. polyocloii, Forst. (v v.) ; A. falcatum, Lam. 

 (y t.) ; A. caudatum, Forst. (v v.) ; A. paleacnm, Ji. Br. 

 (V v.). 



11. Eeosuji Group {TaraaJiia, Pr.) 



Fronds hi-iriijiivnate, (lecomponnd, rarely linear or >;t,jiply 

 forked ; segments rarely otherwise than cuneiform, vjiih 

 erase apices ; venation often flahellatc, tlie eosta hang 

 undefined or evanescent. 



A. septentrionale, Schk. (v v.) {Acropteris, Linl:.) ; A. 

 germanicum, Weis. (v v.) ; A. Seelosi, Siehold (v v.) ; 

 A. Kuta-iuuraria, Linn, (v v.) ; A. cuneatum, Lam. (t v.) ; 

 A. praamorsum, Sw. (v v.) ; A. furcatum, Thtuih. (v v.) ; A. 

 laserpitiifolium, Lam. (v v.) ; A. Jimidiatum, Su). (v v.) 

 {A. zainiafolium, Lodd.) ; A, continuum, Kaulf. (v v. : ; A. 

 erosum, Linn, (v v.) ; A. nitidum, Siv. (v v.). 



Sect. 4. — AcTixiOPTEEis, Link. 



Fronds slipate, flalellate, 6 to 8 inches high, rigid- ; segments 

 linear rachiform. Veins radiating and, dichoionious. 



A. radiatum, 8w. (v v.). 



Obs.- — This is a remarkable Fern, of which Sir William 

 Hooker says, " perfectly sui generis. Even its place in the 

 Fern arrangement is doubt&l. The frond is in no way 

 foliaceous, but rachiform in its divisions, and, before ex- 

 pansion, it is, as it were, refracted (not oiroinate) upon the 

 stipes, and in appearance then, and even when fully 

 developed, very much like some small Ghamceropis among 

 the Palms." 



Although such is the view of this Fern, taken by Sir 

 Wm. Hooker, I nevertheless do not find sufficient character 

 beyond its habit, to separate it from Asplenium. It is 



T 



