182 
TEENS : BRITISH AND FOREIGN. 
1. P. Brownii, J. Sm. ; Lowe's Ferns, 3, t. 29. Adiantum 
paradoxum, B. Br. Pellaea paradoxa, Hook. Fil. 
Exot. t. 21 ; Sp. Fil. 2, t. 3 A. Pellaea cordata, Fee ( non 
J. Sm.). — Australia. 
2. P. falcatum, J. Sm. ; Lowe's Ferns, 3, t. 30 A B ; Hoolc. 
Gen. Fil. t. 115 A ( excl . name P. Brownii). Pteris 
falcata, B. Br. Pteris seticaulis, Hoolc. Ic. PI. t. 207. 
Pellaea falcata. Fee; Hoolc. Sp. Fil, 2, t. Ill B. — East 
Indies, Australia. 
3. P. rotundifolium, J. Sm.; Lowe's Ferns, 3, t. 24 A. 
Pteris rotundifolia, Forst. ; Schlc. Fil. t. 99 ; Hoolc. Ic. 
PI. t. 422. Pellaea rotundifolia, Hook. Fil. Exot. 
t. 48. — New Zealand. 
93. ADIANTUM, Linn. 
Vernation distant, sarmentose or subfasciculate, decumbent 
and caespitose. Fronds simple-reniform, pinnate or bi-tripin- 
nate ; pinnae and pinnules articulated with the petiole ; costa 
excentric or obsolete. Veins unilateral or radiating, forked ; 
Genus 93. — Portion of mature frond, under side. No. 16. 
venules free, terminating in the axis of a reflexed orbicular or 
elongated portion of the margin (indtisium), which is altered in 
texture, venose and sporangiferous on its under side, ultimately 
becoming replicate. 
