Bouvárdias, two species. B. triphylla is well known amongst us, has brilliant scarlet flowers, and when well grown, will flower beautifully from May till September. To keep the plants, they should be frequently renewed; otherwise they are liable to grow straggling, and become subject to the small white scaly insect. B. Jacquìnæ we suspect has got confounded with the former, being very little different, except the foliage, which is more pointed. They flower from the young wood, and often throw their foliage in winter.
Brachysèmas, two species, both evergreen climbers. B. latifòlium has the best foliage, and large purple leguminose flowers. B. undulàtum, flowers yellow, and more plentiful than the former, continuing in long successions. The pots require to be well drained; very few plants of either in the country.
Burchéllias, two species. B. capénsis is a beautiful dwarf evergreen shrub, with tubular scarlet flowers in large terminate clusters; when well treated, grows and flowers freely, and highly deserving of attention. B. parviflòra differs from the above in the flowers being smaller and paler, and the foliage more pointed.
Beaufórtias, only two species. B. decussàta is splendid; the flowers come out of the wood with stamens in fine parcels, colour bright scarlet, foliage decussate, oval, and many-nerved, bloom persistent, and much esteemed. B. spársa, in flower similar to the other, colour light pink, foliage scattered, both easy of culture, and flower abundantly.
Brùnias, about ten species, have heath-like foliage, very fine, generally, on close observation, found to be three cornered. The flowers are white and globular, the plants when young are very handsome; the finest are B. nodiflòra, B. lanuginósa, B. comòsa, B. abrotanoídes, and B. formòsa. They require an airy situation, and in summer to be protected from the powerful rays of the sun. Drain the pots well.
Bósea yervamóra, Golden rod tree, leaves large, alternate, ovate, acute, with purple veins and nerves, flowers brown, in axillary dense panicles, grows strong and freely.
Bæckias, above twelve species, of heath-like appearance, and except for variety, are not otherwise desirable. B. camphoràta is camphor-scented; B. pulchélla is very neat; and B. virgàta flowers freely. Pots should be well drained. The flowers of all the genus are white.
Billardiéras, about five species, are desirable as climbers, being of rapid growth, and abundant in flower. B. longiflòra, fruits freely, and has fine blue berries which look handsome. B. mutábilis is changeable from purple to scarlet. The fruit of B. scàndens is covered with down, flowers straw coloured. B. fusifórmis differs in colour from the others, the flowers being blue. They require to be well drained.
Calceolàrias, about fourteen species, besides many hybrid varieties. C. angustifòlia, and C. integrifòlia are the best of the shrubby species. C. plantagínea, C. corymbósa, C. purpùrea, and C. hopiána, and of the hybrid varieties, C. micàns and C. hybrìda are very fine; but we understand they are numerous, and some of them very splendid.
To grow any of these properly, they should be divided a few weeks after they begin to grow; put them in small pots at first, and enlarge them gradually. Where there is a hot-house, after dividing them, it will greatly promote their growth to keep them in it a few weeks near the glass, until the weather gets mild, when they may be removed to the Green-house. The flowers are principally yellow. C. Fothergíllii, purpùrea, and archnoidea are purple; the hybrids are spotted with red and brown, and some of them streaked many colours. They continue a long time in flower.