CHARACTERS OF TRIBES AND GENERA. 
Tt Vernation fasciculate, decumbent. 
E. conforme (Sw.) (v v.); E. callefolium (BL) (v v.) ; 
E. Sieberi (Hook. and Grev.) (v v.) ; E. crassinerve (Kze.) 
(v v.); E. latifolium (Sw.) (v v) ; E. L'Herminieri (Bory) 
(v v.); E. microlepis (Kze.) (v v.) 
** Fronds more or less densely squamiferous. 
E. piloselloides (Pr.) (v v.) ; E. rubiginosum (Fée) (v v.) ; 
E. cuspidatum ( Willd.) (v v); E. muscosum (Sw.) (v v.) ; 
E. squamosum (Sw.) (v v.); E. vestitum (Hook. and Grev.) 
(v v.) 
*** Fronds fringed or squamiferous at the margin only. 
E. apodum (Hook. and Grev.) (v v.); E. undulatum 
(Willd.) (v v.); E. scolopendrifolium (Radd.) (v v.) i 
41.—Acontopreris, Presl (1836). 
Acrostichum sp. ; Hook. Sp. Fil. 
= Vernation uniserial; sarmentum short, thick, squamose. 
Fronds contiguous, elliptical, or linear lanceolate, 6 to 12 
inches long, smooth or squamiferous. Veins simple or 
forked, parallel, their apices combined near the margin ` 
by a straight or zigzag vein. Fertile frond linear, plain, 
_ wholly sporangiferous on the under side. 
Type. Acrostichum nervosum, Bory. 
‘Dust. Hook. and Bauer, Gen. Fil, t. 79, B; J. Sm. 
Ferns, Brit. and For., fig. 80; Hook. Syn. Fil, t. 7, 
fig. 60, p q. 
. Ons.— This as a genus was bia by real on Acros- 
tichum nervosum of Bory, a native of St. Helena, to which 
has been added Acrostichum longifolium of Jacquin and 
A. gorgoneum of Kaulfuss, natives of the West Indies and d 
Sandwich Islands. In habit they are allied to Elapho. ` 
