ALPINE PLANTS. - 71 
In wet, clayey ground they keep much 
longer in bloom; for hanging down the 
south side of stones on the rockery they are 
most useful, or on dry slopes. P. Vivid, 
ea Nelsone, PP. They bride and! PiiGook 
Wilson are some of those which are best 
worth growing. 
PHYTEUMA COMOSUM (Europe). A very 
remarkable plant, which wants rather special 
treatment. A sunny part of the _ rockery 
should be chosen, where it is fairly dry. In 
winter the plant should be fixed tightly 
between limestone. A layer of fine broken 
limestone and strong loam—two parts lime- 
stone, one part loam—without any sand, will 
be a suitable compost. After you have placed 
your bottom stone, put a portion of the compost 
on the stone; then lay on your plant, leaving 
plenty of room for the root to go down (as 
it forms a tap root), then add a little more 
compost on the plant before placing on the 
other stone. Make these as tight as you ° 
possibly can without injury to the roots or 
crowns of the plant. It should be well 
looked after in the spring, so that the slugs 
do not eat all the crowns away. If the slugs 
