44 
BRITISH FERNS. 
a shallow pan, with thorough drainage, and with porous 
stone about its roots. It must be well watered at the 
root and also sprinkled on the fronds, but the water 
must not be suffered to remain stagnant about it. 
Trichomanes reniformis. Kidney-shaped Bristle-fern . 
This curious and beautiful New Zealand Bristle-fern dif- 
fers from our native species in the bristle not being de- 
veloped beyond the point surrounded by the spore-cases. 
The fronds are simple, kidney-shaped, the stem and 
leafy part each about 3 inches in length, of a dark green 
colour, smooth, and semitransparent. The caudex is 
slender and creeping, like that of our native species. 
The genus Todea was named after the Mecklenburg 
botanist Tode. 
Todea Africana . African Todea . Caudex short, thick, 
erect, approaching in character to that of a tree-fern; 
fronds bipinnate, erect at first, then arching gracefully, 
3 or 4 feet long. It is a native of the Cape of Good 
Hope. 
Todea rivularis . Riverside Todea . Caudex erect, stout ; 
fronds bipinnate, feathery. Closely resembling the last 
species, though belonging to Australia. 
Todea pellucida. Transparent Todea. A dwarf species, 
resembling in character our native Filmy-ferns. The 
fronds are semitransparent, much divided, and light 
green. It grows in the swamps of New Zealand, and 
when introduced into our greenhouses, it should receive 
the same treatment as the Hymenophylhtms. 
