CHARACTERS OF TRIBES AND GENERA. 263 



Illust. Hook, and Bauer, Gen. Fil., t. 15 ; Hook., Gard. 

 Ferns, t. 31; Moore, Ind. Fil., p. 88 A ; J. Sm., 

 Ferns, Brit, and For., fig. 122 ; Hook., Syn. Fil., t. 2, 

 fig. 15. 



OBS. This genus consists of a solitary species, a native 

 of New Zealand, which in habit is similar to some species 

 of Davallia as originally characterised, but more especially 

 to the species placed under Microlepia ; but differs in its 

 sporangia being imbricate, round a columnar receptacle, 

 similar to the genus Trichomanes. This, with the ob- 

 liquity of the ring, renders Loxsoma of some importance 

 as a connecting link between the present tribe and 

 Trichomanes. 



Sp. L. Cunninghami, B. Br. (v v.), Comp. Bot. Mag. 2, 

 366, t. 3132. 



145. ODONTOSORIA, Presl (1836.) 



Davallia, sp. auct. ; Hook. Sp. Fil. ; Stenoloma, Fee. 



Vernation sarmentose, contiguous, sub -fasciculate, or 

 distant. Fronds bi-tripinnatifid, lanceolate or deltoid, 

 1 to 2 and 3 feet in length, or indefinite ; ultimate seg- 

 ments cuneiform, entire, lobed or laciniated. Veins 

 dichotomously forked, venules free. Receptacles terminal, 

 punctiform. Sori simple or binate. Special and accessory 

 indusia forming a vertical, urceolate, or, by confluence, 

 oblong, sporangiferous, marginal cyst. 



Type. Davallia tenuifolia, Sw. 



Illust. Hook, and Grev. Ic. Fil., t. 238 and 194 ; J. Sm., 

 Ferns, Brit, and For., fig. 120. 



OBS. This genus consists of about a dozen species, 

 widely distributed throughout the tropics of both hemi- 

 spheres. They form two distinct groups, the first having 



