732 



PB ACTIO AL GUIDE TO GABDEN PLANTS catadpa 



light, sandy soil and leaf mould and kept 

 close and shaded for a week or so until it 

 has recovered from the change. By the 

 foUowing spring the plants may be sturdy 

 enough for placing outside in warm, 

 sheltered spots. 



CAT ALP A. — A genus containing 

 about 6 species of smooth or downy erect 

 trees or shrubs with large opposite or 

 ternately whorled, oblong ovate or broadly 

 heart-shaped leaves. Flowers in forked 

 panicles or corymbs at the ends of the 

 branches. Calyx membranous, 2-lipped. 

 CoroUa tubular beU-shaped, 2-lipped, with 

 5 rounded lobes. PertUe stamens 2, the 

 3 others smaU and imperfect. Capsule 

 linear, rounded, 1 ft. or more long. Seeds 

 with a white silky down. 



Culture and Propagation. — Catalpas 

 flourish in rich loamy soil in situations 

 somewhat sheltered by other trees. They 

 are noble-looking trees on lawns and grass 

 land even when only simply in leaf. They 

 may be increased by seeds sown in spring 

 in gentle heat ■ or cold frames. The 

 branches may also be layered during the 

 summer and autumn, and cuttings of the 

 ripened shoots may be inserted in sandy 

 soil under handlights in autumn. Or the 

 rarer kinds like C. Bwngei may be grafted 

 on seedlings of 0. speciosa or C. higno- 

 nioides in spring. 



C. bignonioides (C. syringcefoUa). — 

 A noble ornamental tree 20-40 ft. high 

 native of N. America. Leaves ovate heart- 

 shaped, pointed, 6-10 in. long, 5-7 across 

 at the widest part, smooth above, downy 

 beneath. Flowers in July, white, tubular, 

 beU-shaped, about 2 in. across the mouth, 

 with 5 spreading, roundish segments, 

 having fringed or toothed edges, the throat 

 and lower lip being speckled and blotched 

 with purple on u, yellow ground. Some 

 flowers in the same cluster have deep 

 purple bands down the throat, others not. 

 Calyx 2-lipped, purple, downy ; pedicels 

 purple. Fruit pods slender, roundish, deep 

 duU purple and 12 in. or more long. 



Culture (to. as above. 



C. Bungei. — A fine Chinese shrub 8-10 

 ft. high, with ovate, taper-pointed, entire 

 or lobed leaves. Flowers in summer, large, 

 greenish-yellow with red spots. 



Culture dtv. as above. A rather tender 

 plant, best for the south of England and 

 Ireland. 



C. hybrida. — This is a hybrid between 

 C. speciosa (cordifoUa) and C. Iia:»ipferi, 



and more nearly resembles the latter in 

 appearance. The leaves, however, are 

 more irregular in form, and are somewhat 

 heart-shaped at the base, but suddenly 

 taper to a slender point at the apex. The 

 under surface is downy as in C. bignom- 

 aides, and the flowers are also like those 

 of that species. 



Culture do. as above. 



C. Kc >mpferi. — A beautiful Japanese 

 tree with ovate heart-shaped, abruptly 

 sharp-pointed leaves, often with one or 

 more sharp-pointed side lobes. Flowers 

 in July, small, sweet-scented, clear yellow, 

 spotted with purple-brown, lobes toothed. 



Culture dc. as above. Suitable only 

 for the mildest parts of the country. 



C. speciosa. — ^A fine ornamental tree, 

 native of the United States and resembling 

 C. bignonioides in habit. It is distin- 

 guished by its softly downy leaves, less 

 crowded racemes of large white flowers, 

 which appear two or three weeks earher, 

 and larger fruit and seeds. This tree is 

 now also called C. cord/ifoUa, a name that 

 was also at one time applied to C. big- 

 nonioides. 



Culture Sc. as above. 

 TECOMA (Trumpet Ckeepbb ; Trum- 

 pet Flower). — A genus containing about 

 24 species of erect and tree-like chmbing 

 and twining shrubs without tendrils, as 

 in Bignonia, with which genus they are 

 often confused. Leaves opposite, rarely 

 scattered, pinnate or undivided, often 

 with toothed leaflets. Calyx tubular, beU- 

 shaped, nearly equally 5-toothed. Corolla 

 tube elongated, straight or incurved, some- 

 times slightly enlarged or inflated, some- 

 times widened in a beU-shaped throat ; 

 limb somewhat 2-lipped, with 5 almost 

 equal broad more or less spreading lobes. 

 Stamens 4, didynamous, occasionally 

 protruding. Capsule linear or narrowly 

 elliptic. Seeds winged. 



Culture and Propagation. — Tecomas 

 are beautiful plants when well grown. 

 They succeed best in rich, loamy, well- 

 drained son against walls with a south 

 aspect. Only a few species are hardy 

 enough for outdoor cultivation, and in very 

 severe winters most of the over-ground 

 branches are hkely to be killed. New 

 shoots, however, will burst from the root- 

 stock in spring. They like abundance of 

 water during the summer months, but 

 prefer dryness at the root during the 

 winter. Fresh plants may be obtained 



