188 
FERNS : BRITISH AND FOREIGN. 
their apices transversely combined by the receptacle. Sonia 
linear, in the axis of a linear slightly intramarginal indusium. 
Genas 95. — Portion ot frond, natural size; two ditto, enlarged. No. 1. 
the inner free margin of which connives with the inner margin 
of the opposite indusium, ultimately becoming replicate, with 
the sporangia of both sori confluent. 
1. O. Japonicum, Kunze. Trichomanes Japonicum, Thunb. 
0. Capense, Kaulf. En. Fil. t. 1, /. 8. 0. lucidum, 
Cat. Hort. Eew. (1856) ( non Spreng.) (non Hook .). — 
Japan. 
2. O. auratum, Kaulf. Lomaria decomposita, 1). Don. Pteris 
chrvsocarpa, Hook, et Grev. Ic. Fil. t. 107. — East 
Indies and Malayan Archipelago. 
96. PTERIS, Linn, (in part). 
Vernation fasciculate and erect or decumbent, or uniserial and 
6armentose. Fronds pinnate, bi-tri-quadripinnate, rarely simple, 
from a few inches to six or more feet high ; the ultimate pinnae 
entire, sinuose-lobed or pinnatifid. Veins forked ; sterile venules 
free, the apices of the fertile transversely combined by the 
