Seeds, which are commonly sown in pans in spring, in the house; or they may be sown in the border. Seedlings flower in two or three years. The common method of propagation is by means of cormels (see page 29, and Fig. 16). These are removed from the parent corm and planted in the open, where some of them will flower the same season, although most of them will require a season's independent growth before they flower. If cormels are desired in abundance, the large corms should not be allowed to flower. Some varieties do not produce cormels readily, and these may be made to bear them by cutting or ringing (page 30). A new corm is formed above the old one each year (Fig. 16). =Glastonbury-thorn.= See Cratægus. =Gleditschia.= _Leguminosæ._ Seeds should be sown in spring about one inch deep. They should be soaked in hot water before being sown. Varieties propagated by grafts upon seedling stock. =Gleichenia.= See Ferns. =Globe Flower.= See Trollius. =Globularia.= _Selagineæ._ Propagated by seeds, division or cuttings. =Gloriosa=, Clynostylis, Methonica. _Liliaceæ._ Seeds should be inserted singly in small pots, in a light sandy soil, and plunged in bottom heat. Bulbels, which should be carefully removed from the old bulbs when starting them in spring, as the roots are very brittle. =Gloxinia=, Escheria, Salisia. _Gesneraceæ._ Seeds should be sown the latter part of winter, in well-drained pots or small pans of finely sifted soil, of peat, leaf-mould and sand in about equal proportions. The seeds should be sown thinly and covered slightly, then carefully watered, and placed in a temperature of about 70° and kept shaded. Cuttings of the shoots may be taken when the old tubers are starting in spring, and placed in a close propagating frame. Leaf-cuttings, with a small portion of the petiole attached, give excellent results, especially when the leaves are firm and nearly matured. Leaf cuttings are made in the various ways in which begonia leaf-cuttings are made (see pp. 60-72, Figs. 59, 60). Also grafted (see page 88). =Glycine.= See Wistaria. =Glycosmis.= _Rutaceæ._ Seeds. Increased by cuttings, which are commonly inserted in sand under glass, often in heat. =Glycyrrhiza=, including Liquiritia (Liquorice). _Leguminosæ._ Propagated by division and by seeds. =Godetia.= See Œnothera. =Golden Rod.= See Solidago. =Goldfussia.= See Strobilanthus. =Gomphia= (Button Flower). _Ochnaceæ._ Cuttings of firm young shoots should be placed in sand under glass, in heat. =Gomphocarpus.= _Asclepiadeæ._ Seeds should be sown under glass in spring; or cuttings may be made of small side shoots when the plant is commencing new growth, and placed in sand under glass. =Gompholobium.= _Leguminosæ._