352 CHARACTERS OF TRIBES AND GENERA. 



** Petinle of (he pinnules decurreni on the rachis. 



L. palmatum, Sw. (v v.) ; L. dichotomum, Sio. (v v.) ; 

 L. digitatum, Eaton ; L. semi liastatum, Desv. ; L. trifur- 

 catum, Balcer ; L. subalatum, Bojer ; L. japonicum, <S'it'. 

 (V v.). 



204.— Ltgodictton, /. Sm. (1841). 



Lygodium sp. and., Hooh. Syn. Fil. 



Vernation and general character the same as in Lygodiwn, 

 differing only in the veins being reticulated. 

 Type. Lygodium reticidoAum, Schk. 



lUnst. Hook, and Bauer, Gen. Fil., t. Ill B. ; Moore, 

 Ind. Fil, p. 91 A. ; J. Sm., Ferns, Brit, and For., fig. 

 142 ; Hook. Syn. Fil., t. 9, fig. C8 c. 

 Sp. L. reticulatnm {Schh.) (7 v.) ; L. heterodoxum (fiTzc.) 



(V V.) 



205.— AxEiiiA, ,SV. (1806). 

 EooL Syn. Fil. 



Vernation fasciculate, erect, acaulose, rarely sarmentose. 

 Fronds pinnate or bi-tri-pinnatifid, dimorphus, from a few 

 to 18 inches in height, the fertile contracted, distinct, sim- 

 ple or tripartite, the two opposite segments contracted, 

 erect, constituting two sporangiferous panicles, the third 

 segment sterile, and pinnate or bi-tripinnate, with forked 

 free veins. Sporangia oval, attached by the base, opening 

 vertically on the exterior side. 



Type. Anemia aurita and A. adiantifolia, Sw. 



Illust. Hook, and Bauer Gen. Fil., t. 90 ; Moore Ind. 

 Fil., p. 92 A. ; J. Sm. Ferns, Brit, and For., fig. 14;^, ; 

 Hook. Syn. Fil., t. 8, fig. 0-5 a. b. c. d. 



