ROSMARINUS.

ROSMARINUS OFFICINALIS.--Common Rosemary. Mediterranean region, 1848. A
familiar garden shrub, of dense growth, with dusky-gray green linear
leaves, and pale blue or white flowers. There is a golden and a silver
leaved variety, named respectively R. officinalis foliis-aureis, and R.
officinalis foliis-argenteis; as also one distinguished by having
broader foliage than the species, and named R. officinalis latifolius.


RUBUS.

RUBUS ARCTICUS.--Arctic Regions of both hemispheres. An interesting
species about 6 inches high, with trifoliolate leaves, and deep-red
flowers. For Alpine gardening it is a valuable species of dwarf growth.

R. AUSTRALIS, from New Zealand, is a very prickly species, with the
leaves reduced to their stalks and the midribs of three leaflets. Not
being very hardy it is usually seen as a wall plant.

R. BIFLORUS.--Himalayas, 1818. A tall-growing species with whitish,
spiny stems, and simple three-lobed leaves that are tomentose on the
under sides. The flowers are thickly produced, pure white, and render
the plant highly attractive, and of great beauty.

R. DELICIOSUS.--This Rocky Mountain Bramble (1870) is a very worthy
species, with three or five-lobed (not pinnate) leaves, and large, pure
white flowers that are each about 2 inches in diameter, and produced in
profusion from the leaf-axils. For ornamental planting this may be