118 A LTERNATE-LEA VED SPLEEN WORT. 
becoming twice or thrice branched as it reaches the 
broader parts upwards, six or eight veins generally 
lying near together in a narrow fan-like manner in 
each of the larger pinnas, the smaller having pro- 
portionably fewer. Two or three linear sori are pro¬ 
duced on a pinna, covered by membranous indusia, 
the free margin of which is entire, or slightly sinuous 
but not jagged. The sori at length become confluent. 
It is very difficult of cultivation. 
For the cultivation of R. germanicum , Moore (our 
chief authority) recommends that it should be potted 
in sandy peat soil, well drained by a mixture of rnbbly 
matter (indeed, good drainage seems indispensable to 
almost all of the Fern kind); and that it should be 
kept under a bell-glass in a shaded frame or green¬ 
house. The plants are very liable to die in winter, 
the best safeguard from which is not to allow any 
water to lodge about the crowns, nor to keep the bell- 
glass too closely or too constantly over them. 
HABITATS. 
Borrowdale, Miss Wright and H. E. Smith ■ and 
near Scafell, Rev. H. W. Hawker in an excursion 
with J. Huddart and F, Clowes. 
