USEFUL GREENHOUSE PLANTS 151 



manner of a Fuchsia, grown on during the summer, and will flower in 

 the autumn and winter. Their neat clusters of wax-like flowers are in 

 great favour for button-holes and similar purposes. The pure white 

 B. Humboldti corymbiflora has deliciously fragrant blossoms. Others 

 are: Hogarth, scarlet; Mrs. Green, salmon; President Cleveland, 

 brilliant scarlet ; Queen of Roses, pink ; and Vreelandi, white. Alfred 

 Neuner, white ; President Garfield, pink ; and Hogarth fl. pi., have 

 double blossoms. 



Calceolaria. The showiest and most popular Calceolarias, or 

 Slipperworts, as they are sometimes called, are known as "herbaceous," 

 in which the large, inflated pouches, suggesting in shape a fisherman's 

 basket, are richly and quaintly coloured. Herbaceous Calceolarias are 

 raised from seeds, the best time of the year to sow being about mid- 

 summer, and the young plants so obtained will flower during the 

 following spring. The seeds are very minute, hence they should be 

 sown as advised for such seeds mentioned under the head of Seed 

 Sowing. When the young plants are large enough to handle prick 

 them off into pots or pans, arid when sufficiently advanced transfer 

 singly to small pots. A mixture of equal parts of loam and leaf-mould 

 with a little sand will suit them well for the first potting, after which 

 the amount of loam should be increased. The young plants must be 

 kept in a light, airy position to prevent a weakly growth. Pots six 

 inches in diameter are suitable to flower the plants in, and the strongest 

 may be put in their flowering pots by the end of the summer, while the 

 smallest should be left until early in March, when they will form a 

 succession. In all stages aphides or green-fly must be especially guarded 

 against, as they soon ruin the plants, but are easily kept down by 

 vaporising. The varieties with smaller flowers, generally yellow, but 

 sometimes reddish, are of a more woody texture than the herbaceous 

 kinds, and can be struck from cuttings in the spring in the way of a 

 Fuchsia. They are often used for bedding out, but can also be well 

 grown in pots. 



Galla. See Richardia. 



Callistemon salignus. This, often known as Metrosideros flori- 

 bu?ida, is called the Bottle Brush Plant. The flowers, with their long 

 scarlet stamens, are arranged around the shoots in the form of a bottle 

 brush. It needs the same treatment as an Azalea. 



Camellia. The shining green leaves of the Camellia are ornamental 

 at all seasons, and in spring, when the flowers appear, the different 

 varieties are bright and effective. Many of the Camellias are hardy in 

 several parts of the country, hence a cool greenhouse is all that they 

 require. After the flowering season is past they may be kept under 

 glass until the middle of June to allow the young shoots to become 

 moderately firm, when they should be placed out of doors until the 

 autumn, and if possible in a position where they are somewhat shaded 

 from the full rays of the sun. A mixture of two- thirds loam to one- 

 third peat with a little sand will suit them well, but take care not to 

 put them in too large a pot, as the Camellia will stand for years and 

 flower well without being shifted. As the buds develop a little weak 



