232 FERNS I BRITISH AND FOREIGN. 



** Receptacles punctiform. 

 120. ODONTOSOBIA, J. 8m. 



Vernation uniserial, distant and sarmentose, contiguous and 

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

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

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

 mously forked ; venules free. Receptacles terminal, punctiform. 



Genus 120. Portion of fertile pinna, under side. No. 2. 



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, 8w. ; Lowe's 



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

 Indies and Malayan Archipelago. 



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



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

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

 aculeatum, Fee, Gen. Fil. t. 27, /. 4. West Indies. 



