CHARACTERS OF TRIBES AND GENERA. 995 
Sp. A. tenella, (Forst.) (Schk. Fil., t. 16) (v v.) ; A. ra- 
mosa (Beauv.) (Nephrodium obliteratum, R. Br.; A. obli- 
terata, J. Sm., Ferns, Brit. and For.) (v v.) ; A. altescandens, 
J. Sm. (Nephrolepis Hook. Syn. Fil.) ; A. heteromorpha, 
J. Sm. (Polypodium, Hook. and Grev. Ic. Fil., t. 108); A. 
albo-punctata ( Willd.) (Hook. Fil. Egot., t. 89; Aspidium 
Boutonianum, Hook. Ic. Pl., t. 981) (v v.); A. sub- biaurita, 
J. Sm. (Nephrodium, Hook. Sp. Fil.) 
The above species are widely scattered, being individually 
represented in Australia, New Zealand, Juan Fernandez, 
tropical West Africa, and Mascaren Islands, and by 4. 
heteromorpha in tropical America, 
117.—CYcLOPELTIS, J, Sm. (1846). 
Aspidium sp., Hook. Sp. Fil. 
Vernation fasciculate, decumbent. Fronds pinnate, 1 to 
3 feet high, pinn; entire, falcate, lanceolate, 4 to 9 inches 
long, sessile, anriculated at the base, articulated with the 
rachis. Veins two or three times forked, venules free, the 
lower exterior and interior ones sporangiferous on or below ` 
their apices. Receptacles punctiform. Sort round, trans- 
verse, biserial. Jndusium orbicular. 
Type. Aspidium semicordatum, Sw. 
Illust. Fée, Gen. Fil, t. 22, fig. 2 A; J. Sm., Ferns, 
Brit. and For., fig. 80. 
Oss.—This genus is founded upon the Aspidium semi- 
. cordatum of Swartz, a native of the West Indies and some 
= parts of tropical America. It is closely allied to Nephro- 
 lepis, but differs in the vernation being fasciculate and 
. decumbent, and not stoloniferous, as also in the sori being 
transverse biserial. A closely allied species is found in ~ 
the Malayan, Philippine, and other islands, the principal ` 
