CHARACTERS OF TRIBES AND GENERA, 271 
ing oblique elongated areoles, transversely combined by an 
elongated receptacle on both margins. Sori linear, con- 
tinuous. Indusium linear, usually equal, or shorter with 
. the indussform margin. 
Type. Lindsæa ensifolia, Swarts. 
Ilust. Hook. and Grev., Ic. Fil., t. 111 ; Moore, Ind. Fil., 
p. 23 A ; J. Sm., Ferns, Brit. and For., fig. 119 (non 
Hook. and Bauer, Gen. Fil., t. 63, which is an Adiantum.) 
Oss.—The central costa, and reticulated vernation, dis- 
tinguishes this from Lindsew, and the sori being produced 
on both margins from Synaphlebium. 
Brackenridge has characterised a genus which he calls 
Diellia, of which he describes three species, the principal 
difference being in the sori being slightly within the mar- 
gin, and which is not altered in texture, and therefore can 
scarcely be called an indusium ; it also differs in the sori 
being in short pieces, not continuous, which is consequent 
on the pinn being laciniated. The technical difference 
seems to me to be scarcely sufficient to warrant its adoption 
as à genus, 
* Sori continuous. (Schizoloma vera.) 
Sp. S ensifolia (Sw.) (v v.); S. Griffithiana (Hook. Sp. 
Fil. 1., t. 68 B.); S. macrophylla, Kaulf.; S. Fraseri 
(Hook.) ; S. heterophylla (Dry.). 
Oss.—The fronds of this species vary from simply pin- 
nate, with entire lanceolate pinnz, 6 or more inches in 
length, to bipinnate, with short, oblong, oblique pinnules, 
in which the venation is occasionally free. 
** Sori sub-intramarginal, interrupted. (Diellia, Brack.) 
S. erecta (Brack.) ; S. pumila (Brack.) ; S. falcata (Brack.) 
The three latter species are natives of the Sandwich 
Islands (Brackenridge); it is probable they are only 
