18 ALPINE PLANTS. 
limestone and good rough loam. They will do 
in sandstone if limestone cannot be obtained. 
ANTIRRHINUM GLUTINOSUM (MOLLE) 
(Spain). A. SEMPERVIRENS. Two most use- 
ful plants for dry crevices on ledges where 
the rain cannot get. It will be found that 
these plants do extra well and will grow where 
nothing else will live. The drier the position 
the better the plants will look. A. Asarina is 
also very useful, and will grow on any dry 
part of the rock or rock garden; it is more 
hardy than the above two species. If a little 
seed is put into small holes in the stone 
it will germinate, and the plants will hang 
down the rock; if the seed is placed in the 
crevices on the south side of an old wall it will 
soon cover the wall with plants ; or again, if a 
hole is made in the wall and a plant inserted, 
it will soon scatter its seed on the other parts 
of the wall, where it will take root and 
crow freely. 
APHYLLANTHES MONSPELIENSIS (South of 
France). This is a most interesting rush- 
like plant, and a good addition to the edge 
of the bog garden. It requires peat, sand, 
and loam in equal parts, and a position 
