PLANTS WORTH GROWING 99 
brown woody stems with pink growth buds starting 
irregularly from their sides, looking as though 
partially decayed. These, however, planted per- 
pendicularly at a distance of a couple of feet apart, 
will quickly form a flourishing colony. B. micro- 
carpa has flowers of a darker shade, akin to the tints 
of clouded amber. 
Bupthalmum. — ^This is one of the composites to 
which the common name ' Ox Eye ' is given. The 
flowers have small daisy centres surrounded by a 
fringe of thread-like golden petals. B. salicifolium 
has small willow-like foliage, and grows in dense 
clumps to a height of two feet. B. speciosum is a 
larger and stronger plant of about double the pro- 
portions of the former. Both are very hardy, free 
flowering and effective. 
Calystegia. — The perennial Convolvulus is useful 
as a rapid climber to cover dead tree stumps, screens, 
or rough fences for which a curtain of foliage is 
desired in a short space of time. C. hederacese flore 
pleno is the finest variety, producing double flowers 
of a clear pale pink. The one point that must not 
be overlooked is that the rampant roots of the plant 
are prone to trespass beyond their allotted space, and 
if allowed unrestricted freedom the Calystegia will 
oust neighbouring plants and monopolize an inor- 
dinate amount of space. 
Campanula. — To accommodate a complete collec- 
tion of campanulas one would require quite a large 
garden, and to name and describe all the species 
