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PB ACTIO AL GUIDE TO GARDEN PLANTS pentstemon 



spring the rootstock may also be care- 

 fully divided, or cuttings of the young 

 shoots may be inserted in sandy soil with 

 a little bottom heat in spring, or in cold 

 frames during the summer months. 



PAULOWNIA. — This genus contains 

 only one species ; — 



P. imperialis. — A beautiful and orna- 

 mental Japanese tree 30-40 ft. in the 

 most favoured parts of the South of 

 England, forming dense rounded heads. 

 Leaves opposite, entire or 3-lobed, broad, 

 soft, hairy or downy, ovate-heart-shaped 

 in outline, and often 12-20 in. long, and 

 correspondingly broad. Flowers in spring, 

 sweet-scented, tubular, somewhat like 

 those of the Foxglove but larger, purpHsh- 

 violet, with deeper reddish-brown spots 

 inside, and produced in many-flowered 

 terminal panicles. Calyx deeply 5-cleft, 

 with thick obtuse lobes. Corolla tube 

 elongated, curved, widening at the mouth, 

 with 5 obliquely spreading rounded al- 

 most equal lobes. Stamens 4, didyna- 

 mous, bent down at the base, then 

 ascending. 



Culture and Propagation. — This 

 beautiful tree likes a light but deep loamy 

 soil, and does not flourish in very sandy 

 or stiffish clay soil. As an ornamental 

 tree it is very effective, and when the 

 flowers are not injured by frost they pre- 

 sent a very fine sight. In Paris several 

 avenues of the Paulownia may be seen, 

 and it makes a splendid shade tree in 

 summer. By cutting young trees back at 

 the beginning of the year, strong thick 

 shoots 6 ft. or more long will develop in 

 the course of the season. Except in the 

 bleakest and wettest parts of the country, 

 the Paulownia seems to be fairly hardy, 

 and it has not been injured by 13° of frost 

 in the north of England. 



The Paulownia is raised from seeds 

 sown in gentle heat or a cold frame in 

 spring. It may also be increased by 

 cuttings of the ripe wood inserted in rich 

 sandy soil in cold frames or slight heat in 

 early autumn. The roots cut into pieces 

 about 2 in. long or less and placed in 

 bottom heat wiU also produce young 

 plants at the beginning of the year. 



CHELONE (Turtle Head). — A 

 small genus of smooth or scarcely downy 

 perennial herbs with opposite serrate 

 leaves. Flowers in dense spikes in the 

 axils of the upper leaves and at the ends 

 of the branches, sessile. Calyx 5-parted 



with lance-shaped or broadly ovate seg- 

 ments. Corolla tube rather long, inflated, 

 limb 2-lipped, gaping. Stamens 4, didy- 

 namous. Capsule many-seeded; seeds 

 winged. 



Culture and Propagation. — Chelones 

 flourish in a rich and rather light loam, 

 but grow well in ordinary good garden 

 soil. They may be increased by dividing 

 the plants in the early autumn as soon 

 as the flowers have disappeared, and the 

 foliage shows signs of decay. Seeds may 

 be sown -when ripe in cold frames, the 

 seedlings being planted out in spring. 

 Cuttings of the young shoots may also be 

 inserted in sandy soil in cold frames in 

 spring and during the summer. Cuttings 

 of the roots wiU also grow inserted in and 

 covered with sandy soil, with a, little 

 bottom heat in the early part of the year. 

 C. Lyoni (C. major). — A showy peren- 

 nial, 3-4 ft. high, native of Upper Carolina 

 and Georgia, with stalked heart-shaped 

 ovate serrate leaves, very smooth, and 

 deep green. Mowers from July to Sep- 

 tember, purple, in clustered spikes at the 

 tips of the branches. 



Culture dtc. as above. A good border 

 plant. 



C. nemorosa. — A native of N.W. 

 America, about 1 ft. high, and interesting 

 as forming the connecting link between 

 Chelone and Pentstemon. Leaves ovate 

 taper-pointed, serrate. Flowers in sum- 

 mer, rosy-purple, 1-3 on a downy stalk. 

 Culture dc. as above. 

 C. obliqua (C. glabra; C. purpurea). 

 A pretty N. American species, 2-3 ft. high, 

 not quite so vigorous in growth as C 

 Lyoni. Leaves stalked or nearly sessile, 

 oblique, oval lance - shaped, unequally 

 toothed, very smooth. Flowers in sum- 

 mer, large, purple, in dense spikes at the 

 ends of the branches. 

 Culture ti'-c. as above. 



PENTSTEMON (Beard Tongue). 

 This genus contains 66 species of peren- 

 nial herbs or undershrubs with opposite 

 leaves, the lower ones stalked, the upper 

 ones often sessile, stem -clasping and 

 gradually passing into bracts. Peduncles 

 forked, many-flowered, arranged in ter- 

 minal panicles or clusters, often leafy at 

 the base. Calyx 5-parted. Corolla showy, 

 red, violet, blue, white, or rarely yellowish- 

 white, with a tube often elongated, equal 

 or inflated in the middle, and 2-lipped ; 

 upper lip 2 - lobed, lower one 3 - cleft. 



