SSC 
184 CHARACTERS OF TRIBES AND GENERA. 
91.—Crevoprerts, Bl. (1828). 
Polypodium sect, Ctenopteris Blume; Polypodium sp. auct. 
Hook. Sp. Fil, 
Vernation fasciculate, acaulose or sarmentose. Fronds 
. linear lanceolate, sinuose, or more or less deeply pinnatifid 
or pinnate, rigid, erect, or thin and pendulous ; segments 
entire, dentate, or laciniated. Veins simply forked, rising 
from the mid-rib of each segment or lacing, obscure, free. 
Receptacles terminal. Sori punctiform, solitary, or few in 
each lacine or uniserial, often becoming confluent, naked. 
Type. Polypodium trichomanoides, Swartz. 
lllust. Hook. and Grev., Ic. Fil, t. 223. ;- Schk. Fil., 
t. 10. 
Oss.—This genus contains the principal number of the 
species which represent this tribe ; as already stated, the 
greater number of them are very uniform in appearance, 
differing chiefly in being smooth, or more or less pilose, 
and in the difference of the number of sori produced on 
each lacinæ or pinns. They are natives principally of ; 
the West Indies and Tropical America, but a few are 
found in the Indian and Malayan regions. 
* Fronds sinuose pinnatifid. Segments entire. 
1, Trichomanoid Group. 
Sp. C. trichosora (Hook.) ; C. jubsformis (Kaulf.); C. 
flabelliformis (Lam.); C. trichomanoides. (Sw.), Bedd. F. ` 
Brit. Ind., pl. 2; C. confusa, J. Sm., 1839, Lond. Journ. 
Bot. 1., p. 194; C. subtilis (Kze.); C. truncicola (Klot.) ; 
= €. delicatula (Mart.); C. solidum (Kze) Mett. Polyp., ` 
| #4, fg. 1. 
| 2. Moniliform Group. 
C. moniliformis (Lagase.); C. peruviana (Desv); C. ` : 
rigescens (Bory) ; C. firma (Klot.). 
