slopes. To give them their best setting they should be planted en masse 
as much as possible. For those who must “collect” (my own inborn vice 
which I make no slightest attempt to restrain) it is possible to group 
species in such a way that they are in complete accord. For example; all 
the blue-flowered aromatic members of the Lapponicum Series are very 
pretty in groups. They will grow in exposed situations and bogs as well. 
They will provide us with abundant bloom in spring and with an autumnal 
spattering of blues and purples. With a few of the yellow Lapponicums 
for accent they make a charming picture. 
The number of x’s before the rhododendron indicates the rating given 
by the Rhododendron Society of England. Their absence is not a sign 
that the plant is worthless; often that the plant has not yet been con- 
sidered. It is not likely that we all shall see exactly eye to eye with the 
judgments. 
x x Rhododendron anthopogon. A small compact shrub. Flowers bright 
yellow; 2 in. across. To 16,000 ft. in the Himalayas. $1.00. 
x x R. argyrophyllum. Large shrub growing in thickets. Leaves yellow- 
green above, covered with indumentum. Flowers white to pale pink, 
spotted with darker color, bell-shaped and 14 in. wide. W. China and 
Tibet. Introduced by E. H. Wilson 1904. $1.00. 
x x R. arizelum. One of the spectacular Falconeri Series which grows to 
a small tree. Leaves are 5-9 in. long, coriaceous and puckered, with 
hairy indumentum underneath. Flowers bell-shaped, 2 in. wide, white 
to creamy yellow, flushed with pink and blotched with crimson. Slow- 
growing. Yunnan and S. E. Tibet. Introduced by George Forrest 1917. 
$2.50. 
x x R. aureum. Leaves narrow, pointed, glossy; flowers funnel-shaped, 
yellow, varying from pale to bright color, in trusses of ten or less. 
Very floriferous. Perhaps not hardy in Wash. Introduced by Jean M. 
Delavayi 1886. $1.50. - 
R. Boothii. A slow-growing open shrub with large, leathery, hairy leaves. 
Flowers 7-10 in a close truss, bell-shaped, 1 or more in. wide, soft 
deep yellow. In the wild it is often epiphytic on trees. Bhotan. Intro- 
duced by T. J. Booth 1852. $1.00. 
x x x x R. Blue Tit. A hybrid of R. Augustinii and R. impeditum. Flowers 
dark blue and almost iridescent in the sun. $1.50. 
R. caesium. Small twig~7 shrub with bluish leaves and pale yellow 
flowers. $1.00. 
x x x R. calostrotum. Small bush with greenish-gray aromatic leaves 
buff to brown on reverse; large saucer-shaped silky crimson flowers, 
2 in. across. It will form a carpet if grown close in the open. To 12,000 
ft. N. E. Burma. Introduced by Kingdon Ward 1919. $1.50. 
x x x R. caloxanthum. Leaves round and bluish-green. Flowers 13 in. 
long but less wide. The buds are rusty red, opening to sulphur yellow. 
we I 
