188 FEENS : BEITISH AND FOEEIQN. 



their apices transveraely combined by tbe receptacle. Borua 

 linear, in the axis of a linear slightly intramarginal indnsimn. 



Genos95 —Portion of frond, nataral size; two ditto, enlarged. Ko. I. 



the inner free margin of which connives with the inner margin 

 of the opposite indnaium, nltimately becoming replicate, with 

 the sporangia of both sori confluent. 



1. O. Japonicum, Kunze, Trichomanes Japonicmn, Thunb. 



O. Capense, Kaulf. En. Fil. t. 1, /. 8. O. Inoidnm, 

 Cat, Sort. Kew. (1856) (non Spreng.) {non Hook.). — 

 Japan, 



2. O. auratum, KcwZf. Lomaria decomposita, D. Bon. Fteris 



chrysocarpa, Hook, et Greu. Ic. Fil, t. 107. — Bast 

 Indies and Malayan Archipelago. 



96. PTEBIS, Lirm. [in pwrt). 



Vernation fasciculate and erect or decnmbent, or uniserial and 

 sarmentose. Fronds pinnate, bi-tri-qnadripinnate, rarely simple, 

 from a few inches to sis or more feet high ; the ultimate pimiaa 

 entire, sinuose-lobed or pinnatifid. Veins forked ; sterile venules 

 free, the apices of the fertile transversely combined by the 



