. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 358 COMMELINA few are cult, fortheir interesting flowers. Fls. irregular, the calyx often colored, with unequal sepals ; petals 3, the 2 lateral ones rounded or reniforni and long-clawed; stamens 6, 3 shorter; capsule 3-loculed. There are sev- eral native tradescantia-like species, some erect and others creepin
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 358 COMMELINA few are cult, fortheir interesting flowers. Fls. irregular, the calyx often colored, with unequal sepals ; petals 3, the 2 lateral ones rounded or reniforni and long-clawed; stamens 6, 3 shorter; capsule 3-loculed. There are sev- eral native tradescantia-like species, some erect and others creeping. These are not in the trade. The cult, species are erect warmhouse plants. Some are tuberous- rooted. In the Amer. trade, only C. coelfiBtis, Willd., is offered. Fig. 528. It grows 10-18 in, high, branching, with clasping, long, broad-lanceolate pointed Ivs. and blue fls. (2-10 together) on elongating axillary pedun- cles. Var. Alba, Hort., has white fls. Var. variegita, Hort., has fls. blue and white. Mex. Prop, by seed, cuttings and tubers. The native C. nudifldra, Linn, (as C. SeUowiitia, Schlecht.), is in cult. It ranges all around the world. It is a creeping plant, rooting at the joints, with lanceolate Ivs., and small irregular blue fls. in the axils. Commelina is monographed by C. B. Clarke in DC. Monogr. Phaner. 3. Commelinas are mostly of easy culture, thriving well in any light, rich soil. The evergreen stove and greenhouse species are readily propagated in March or April by cuttings inserted in an ordinary propagating. compost heap bed and kept close for a few days ; while the tuberous- rooted half-hardy herbaceous species may be propagated either by division of the tubers or by seeds sown in a frame early in April and afterwards transplanting the seedlings in the herbaceous border. In the fall, they should be lifted and the tubers stored away in the same manner as Dahlias. Of the tuberous-rooted species, C. ccelestis is perhaps the best, its bright blue flowers be
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