CHARACTERS OF TRIBES AND GENERA. 
-~ indusoid margin also agrees, but the technical character of 
© the sori distinguishes it. à; 
In *Ferns, British and Foreign," I have described the 
vernation as erect, as shown by a young plant cultivated at 
Kew, received from Dominica, which agrees with the words 
* fronds tufted," as given in the * Species Filicum," whereas 
the specimen in the Kew Herbarium collected in Jamaica 
by Purdie is marked “ Rhizome creeping ; this singular 
Fern grows or rather climbs to a height of 20 feet." Of 
the correctness of this I have doubts; further observation 
is required to determine whether the two known species of 
the genus differ in their vernation, there being no specimens 
of the fronds attached to the caudex in the Herbarium. 
Sp. S. elegans, Kaulf. (v v.); S. Imrayana (Hook) ` 
(Davallia, section Microlepia, Hook. Sp, Fil.; Davallia, : 
section Humata, Hook. Syn. Fil.). 2 
142,—Microteria, Presl (1836). 
. Davallia auct., Hook. Sp. Fil. 
Vernation uniserial, sarmentose. Fronds pinnate or tri- " 
pinnatifid, or compound deltoid, 1 to 6 feet high. Veins ` 
simply or pinnately forked; venules free, the exterior one ` 
or more soriferous, Receptacles terminal, punctiform, mar- — 
. ginal or sub-antimarginal. Indusiwm attached by its broad 
base only, or by its base and sides, constituting a simple, ` 
cucullate, or semiurceolate vertical cyst. | 
Type. Polypodium Spelunce, Linn. 
Ilust. Hook. and Bauer, Gen. Fil., t. 58, A; Hook. Fil. 
Exot, t. 19; Moore Ind. Fil., p. 75, A; J. Sm. Ferns, 
Brit. and For., fig. 121; Hook. Syn. Fil., t. 2, fig. 
18, d. 
Oss.—This genus consists of a dozen or more speci 
