Berberis Aquifolium,* Darwinii, vulgaris, nepalensis. Single specimens of B. Aquifolium, the Mahonia, become very ornamental with age.
Betula alba* (the Silver Birch).—A very hardy tree, beautiful both in summer and winter. The pendulous variety is the best. Its branches are proof against all winds. No tree is so well adapted for planting close up to houses in the city, for it is very graceful, and obscures little light. B. utilis, B. papyrifera, B. populifolia.
Box* and varieties.
Bryanthus empetriformis.*—Very fine planted in broad masses. B. erectus—Very beautiful in small beds.
Calycanthus floridus.—This is excellent on walls.
Camellias only flower here on walls in the open. They form large bushes in the grounds. Camellia Thea, the tea-plant, is also perfectly hardy.
Carmichælia flagelliformis.*—Very interesting, and flowering with great freedom.
Carpenteria californica.*—A splendid plant for south walls, large established specimens having a profusion of large white flowers.
Carpinus Betulus* (Hornbeam) and varieties.
Caryopteris Mastacanthus.—A good wall plant.