232 



FERNS : BRITISH AND FOREIGN 



** Receptacles punctiform. 



120. ODONTOSORIA, /. 8m. 



Vernation uniserial, distant and sarmentose, contiguous and 

 sub-fasciculate. Fronds bi-tripinnatifid, lanceolate or deltoid, 

 1-5 feet long, erect or flexuose and scandent; ultimate seg- 

 ments cuneiform, entire, lobed or laciniated. Veins dichoto- 

 mously forked; venules free. Receptacles terminal, punctiform. 





I 



Genus 120. — Portion of fertile p'l.na, under side. No. 9. 



Sori simple or binate. Special and accessory indusia forming a 

 vertical, urceolate or, by confluence, oblong, sporangiferous, 

 marginal cyst. 



1. O. tenuifolium, J. 8m. Davallia tenuifolia, Sw. ; Lowe't 



Ferns, 8, t. 14. Stenoloma tenuifolium, Fee. — East 

 Indies and Malayan Archipelago. 



2. O. aculeatum, J. 8m. Davallia aculeata, 8m. ; Hoole. Sp. 



Fil. t. 54 B ; Lowe's Ferns, 8, t. 26. Adiantnm 

 aculeatum, Linn. (Plum. Fil. t. 94). Stenoloma 

 aculeatum, Fee, Gen. Fil. t. 2.7, f. 4. — West Indies. 



