LAPAGERIA.

LAPAGERIA ROSEA.—­Chili, 1847.  This is, unfortunately, not hardy, unless in favoured maritime districts, but in such situations it has stood unharmed for many years, and attained to goodly proportions.  It is a beautiful climber, with deep-green leaves, and large, fleshy, campanulate flowers of a deep rose colour.  There is a white-flowered form called L. alba, introduced from Chili in 1854.  Planted on an east aspect wall, and in roughly broken up peat and gritty sand, it succeeds well.

LAVANDULA.

LAVANDULA VERA (syn L. Spica).—­Common Lavender.  South Europe, 1568.  A well-known and useful plant, but of no particular value for ornamental purposes.  It is of shrubby growth, with narrow-lanceolate, hoary leaves, and terminal spikes of blue flowers.

LAVATERA.

LAVATERA ARBOREA.—­Tree Mallow.  Coasts of Europe, (Britain).  A stout-growing shrub reaching in favourable situations a height of fully 6 feet, with broadly orbicular leaves placed on long stalks.  The flowers are plentiful and showy, of a pale purplish-red colour, and collected into clusters.  It is a seaside shrub succeeding best in sheltered maritime recesses, and when in full flower is one of the most ornamental of our native plants.  There is also a beautiful variegated garden form, L. a. variegata.

LEDUM.

LEDUM LATIFOLIUM (syn L. groenlandicum).—­Wild Rosemary, or Labrador Tea.  This is a small shrub, reaching to about 3 feet in height, indigenous to swampy ground in Canada, Greenland, and over a large area of the colder parts of America.  Leaves oval or oblong, and plentifully produced all over the plant.  Flowers pure white, or slightly tinted with pink, produced in terminal corymbs, and usually at their best in April.  A perfectly hardy, neat-growing, and abundantly-flowered shrub, but one that, somehow, has gone greatly out of favour in this country.  This plant has been sub-divided into several varieties, that are, perhaps, distinct enough to render them worthy of attention.  They are L. latifolium globosum, with white flowers, borne in globose heads, on the short, twiggy, and dark-foliaged branches.  L. latifolium angustifolia has narrower leaves than those of the species, while L. latifolium intermedium is of neat growth and bears pretty, showy flowers.

L. PALUSTRE.—­Marsh Ledum.  This is a common European species, growing from 2 feet to 3 feet high, with much smaller leaves than the former, and small pinky-white flowers produced in summer.  It is an interesting and pretty plant.  The Ledums succeed best in cool, damp, peaty soil.

LEIOPHYLLUM.

LEIOPHYLLUM BUXIFOLIUM (syns L. thymifolia, Ammyrsine buxifolia and Ledum buxifolium).—­Sand Myrtle.  New Jersey and Virginia, 1736.  This is a dwarf, compact shrub from New Jersey, with box-like leaves, and bunches of small white flowers in early summer.  For using as a rock plant, and in sandy peat, it is an excellent subject, and should find a place in every collection.