182 



FEKNS : BRITISH AND FOREIGN. 



1. P. Brownii, J. Sm. ; Lowe's Ferns, 3, t. 29. Adiantum 



paradoxum, B. Br. Pellaea paradoxa, Hooh. Fil. 

 Exot. t. 21 ; Sp. Fil. 2, t. 3 A. Pelleea cordata, Fee {non 

 J. Sm.). — Australia. 



2. P. falcatum, J. Sm. ; Lowe's Ferns, 3, t. 30 A B ; Booh. 



Gen. Fil. t. 115 A (exel. natme P. Brownii). Pteris 

 falcata, B. Br. Pteris seticanlis, Hooh. Ic. PI. t. 207. 

 Pellasa falcata, Fee ; Hooh. Sp. Fil. 2, t. Ill B.— Eust 

 IndieSj Australia. 



3. P. rotundifolium, J. Sm. ; Lowe's Ferns, 3, t. 24 A. 



Pteris rotundifolia, Forst. ; Schk. Fil. t. 99 ; Hooh. Ic. 

 PI. t. 422. Pellsea rotundifolia, Hooh. Fil. Exot. 

 t. 48 — New Zealand. 



93. ADIANTUM, Linn. 



Vernation distant, sarmentose or subfaseioulate, decumbent 

 and csespitose. Fronds simple-reniform, pinnate or bi-tripin- 

 nate ; pinnse and pinnules articulated with the petiole ; costa 

 excentric or obsolete. Veins unilateral or radiating, forked ; 



Genus 93. — Portion of mature frond, under side. No. 1(1* 



venules free, terminating in the axis of a reflexed orbicular or 

 elongated portion of the margin (indusium), which is altered in 

 texture, venose and sporangiferous on its under side, ultimately 

 becoming replicate. 



