142 
FERNS : BRITISH AND FOREIGN. 
alternate, the lower exterior branch free, the others acutely 
anastomosing, producing from their junctions free or anasto- 
mosing veinlets. Receptacles punctiform on or below their 
apices or points of junction of the venules. Sori round, 
transversely uniserial, or numerous and oblique-serial. Indu- 
sium orbicular. 
1. C. falcatum, Presl. Polypodium falcatum, Linn. ; Thv.nl). 
FI. Jap. t. 36. Aspidium falcatum, Sw. ; Lang, et 
Fisch. t. J5 ; Lowe's Ferns, 6, t. 9 ; Hook. Fil. F.cot. 
t. 92. — Japan, China. 
