Grasses, Ornamental.--Fine for mixing in a green state with cut flowers, or in a dried condition for the decoration of vases, winter bouquets, etc. To have them in perfection gather them while quite fresh, with the pollen on them. Cut with as long stems as possible, arrange lightly in vases, and keep them in the dark till they are dried and the stems become stiff. The Grasses may be divided into two sections, viz., those for bouquets or edgings, and those grown in the border or on lawns for specimen plants. The class is numerous, but the following (which may be found described herein under alphabetical classification) may be mentioned:-- For bouquets and edgings: Agrostis, Anthoxanthum, Avena, Briza, Coix Lachryma, Eragrostis, Festuca, Hordeum Jubatum, Lagurus, and Stipa Pennata. For specimen plants: Eulalia, Gynerium, Panicum, Phalaris, and Zea. Gratiola Officinalis.--This hardy herbaceous plant bears light blue flowers in July. A rich, moist soil is its delight. It is propagated by dividing the roots. Height, 1 ft. Green Fly.--Fumigate the infected plants with tobacco, and afterwards syringe them with clear water; or the plants may be washed with tobacco water by means of a soft brush. Grevillea.--Handsome greenhouse shrubs, which require a mould composed of equal parts of peat, sand, and loam. Give plenty of water in summer, a moderate amount at other seasons. Ripened cuttings may be rooted in sand, under a glass. Young plants may also be obtained from seed. They bloom in June. Their common height is from 3 to 4 ft., but G. Robusta attains a great height. Grevilleas will grow well in windows facing south. Griselinia Littoralis.--A dwarf-growing, light-coloured evergreen shrub, which will thrive near the sea. It requires a light, dry soil, and may be increased by cuttings. Guelder Rose.--_See_ "Viburnum." Guernsey Lily (_Nerine Sarniense_).--Soil, strong, rich loam with sand, well drained. Plant the bulbs deeply in a warm, sheltered position, and let them remain undisturbed year by year. Keep the beds dry in winter, and protect the roots from frost. They also make good indoor plants, potted in moss or cocoa-nut fibre in September, or they may be grown in vases of water. Gumming of Trees.--Scrape the gum off, wash the place thoroughly with clear water, and apply a compost of horse-dung, clay, and tar. Gunnera Manicata (_Chilian Rhubarb_).--This hardy plant bears large leaves on stout foot-stalks, and is very ornamental in the backs of borders, etc. Planted in a rich, moist soil, it will flower in August. It can be propagated by division. Height, 6 ft. Gunnera Scabra.--Has gigantic leaves, 4 to 5 ft. in diameter, on petioles 3 to 6 ft. in length. It prefers a moist, shady position, and bears division. Makes a fine addition to a sub-tropical garden, where it will flower in August. Height, 6 ft.