108 Alpine Plants. 
then appears as if dying. Watering, under the 
erroneous impression that this is the case, is highly 
injurious, as the plant at this time should be kept as 
dry as possible. 
Saxifraga X Boydii and B. alba (Gard. Hyb.). 
Treat like Saxifraga Burseriana. 
Saxifraga Burseriana and B. major (Alps). 
These need, like Saxifraga Boydii, Saxifraga 
Elizabethe, and Saxifraga luteo-purpurea, rather 
more care than the ordinary Aizoon section, and 
should be planted either between stones or on the 
level in a partially shaded place on the higher part 
of the rockery, though on no account in one liable to 
drip from overhanging trees or branches, using a 
compost of half loam and half grit, out of which the 
fine has been sieved before use. Of these, Burseriana 
major is the more difficult to keep during the winter 
season, requiring to be especially guarded against any 
drip or excessive moisture in the winter months, or it 
will be sure to damp off. In the latter part of the 
summer also it must not be allowed to become dry, 
for summer is a most critical time in the case of all 
the sunny varieties, as in their native homes they are 
then getting a large supply of moisture from the 
melting snows, a natural supply which must be 
imitated in cultivation by artificial watering at that 
season. In autumn top-dress with gritty loam. In 
spring see that the frost has not lifted any of the 
plants out of the ground, and, if it has, press them 
firmly back into position again. 
