CHAEACTEES OF TEIBES AND QENEEA. 283 



/. Sm. {AJiantum, Linn.) (v v.) ; C. paupercula, Mett. ; 0. 

 dichotoma, Sw. ; 0. Seemanni, Hooh. ; C. pedata, /. Sm. 

 (v V.) {Hypolejns, Hooh.); C. Schimperi, Kunze ; 0. ca- 

 pensis [Sw.) (v v.). 



** Tteridopsu. 



Indusium hinate, or elongating sub-oontimwus, including 



two or more clusters of sporangia. 



C. micropteria, Sw. (v v.) ; C. chlorophylla, 8w. ; C. 

 multifida, Sw, (v v.) ; C. mysurensis, Wall. ; C. bullosa, 

 Kunze. ; 0. Mattliewsii, Kunze. ; 0. Wriglitii, Kunze. ; 0. 

 Tweediana, IfooA-. ; C. Sieberi, Kunze. (v v.) ; C. viscosa, 

 Linh. (v V.) ; 0. tenuifolia, Sw. (v v.) ; C. variaus, Hoolc. ; 

 C. frag-rans, Webh. (v v.) ; C. Moritziana, Kunze. ; C. micro- 

 phylla, Sw. (v v.) ; 0. alabamensis, Kunze. (v v.) ; C. 

 chusana, Hooh. 



*** Aleuritopteris. 



Indusium continuous, unJulose crenulated, each crena including 

 a cluster of sporangia. 



t Fronds somewhat vitlose or slightly squamiferous. 



C. Dalhousire, Hook. ; C. subvillosa, Hook. 



ft Fronds u'ith wJiite farina on the under side. 



C. argentea, Kunze. (v v.) ; G. arg-yrostigma, J. Sm. ; C. 

 pulveracea, Presl ; C. farinosa, Kaulf. (v v.). 



Obs. — The latter species varies greatly in size, the fronds 

 being sometimes so small that they are not distinguishable 

 from G. argentea, which, as at present known, is never found 

 exceeding 2 to 4 inches in height, whilst the native speci- 

 mens of G. farinosa average from 6 to 12 inches, and when 

 cultivated under favourable circumstances attain a height 

 of two feet, cultivation has not, however, increased the size 

 of 0. argentea; its small size maybe considered constitu- 



