Alibertia. Cinchonaceæ.
Increased by cuttings, which root freely in a mixture of loam and peat, under a hand-glass, in heat.
Alisma, Actinocarpus (Water Plantain). Alismaceæ.
Increased by seeds, which should be sown in a pot immersed in water and filled with loam, peat and sand; also by divisions, which root well in a moist loamy soil.
Allamanda. Apocynaceæ.
Layers. Root-cuttings will root well at any time of the year in a bottom heat from 70° to 80.° The usual time is, however, in spring, when the old plants are pruned back. Choose the tops of the shoots, retaining two or three joints to each cutting. Place in a compost of sand, and peat or leaf-mould in equal proportions, singly, in pots, and plunge the pots in the propagating bed.
Allium, including Porrum, Schœnoprasum. Liliaceæ.
Increased by seeds sown thinly in light soil in early spring. By bulbels, planting them in autumn or spring one to four inches deep. (See [Onion].)
Allosorus. See [Ferns].
Almeidea. Rutaceæ.