PTEROCEPHALUS. 



THE ENGLISH FLOWER GARDEN. 



78s 



Claremont and other places, and one in 

 Hyde Park. The fohage is very glossy 

 and large. The tree is a vigorous grower, 

 and should not be planted near shrubs or 

 other plants we wish to have a fair chance. 

 The trees are natives of temperate 



Pterocarya caucasica. 



countries in Asia, and their number is 

 likely to be added to as soon as more of 

 China, Mongolia, and countries near are 

 opened up. The Caucasian is the best 

 known species — others are : rhoifolia 

 Japan, stenoptei-a China, and Delavayi 

 Yun-Nan. 



PTEROCEPHALUS.— P. Pamassi is 

 a Scabious-like plant of dwarf compact 

 growth, forming a dense rounded mass of 



Pterocephalus Parnassi. 



hoary foliage which in summer is studded 

 with mauve-coloured flower-heads. It is 

 a most desirable plant, thriving best in 

 light warm soils, and is suited either for 



the rock-garden or the ordinary border. 

 Syn. Scabiosa pte)-ocepIiala. Greece. 



PTEROSTYRAX.— 7^. hispidum is a 

 deciduous Japanese shrub, and quite hardy 

 enough for culture as a bush. It makes a 

 capital wall shrub, being rapid in growth, 

 handsome in foliage, and very beautiful in 

 flower. The leaves are heart-shaped, 

 about 6 in. long and 3 in. broad, the 

 small white flowers borne very freely in 

 drooping clusters about the end of July. 

 Another Japanese species, P. cotyinbostitn, 

 is less common, though desirable for walls. 

 Its flowers, which are white or faintly 

 tinged, are in crowded clusters. Both 

 species are 8 to 12 ft. high in this country. 

 They are known botanically as Hales'ia 

 hispida and H. corymdosa, but ever since 

 their introduction they have been known 

 as Pterostyrax in gardens. Increase by 

 seeds, layers, and soft cuttings. 



PUERARIA {Kiidsu).—P. thiinbergi- 

 ana is a remarkable climbing plant of 

 almost tropical vigoui', growing up poles, 

 colonnades, and walls to a great height in 

 a very short time. It belongs to the pea 

 family, and is a plant the Japanese make a 

 great economic use of in various ways, but 

 our main concern with it here is for the 

 flower garden, where it is hardy and 

 useful as a rapid-growing leafy screen. 

 The flowers are a dull violet-purple and 

 very fragrant, but only come towards 

 autumn, when the plant is well estab- 

 lished. Increase by seeds, division of 

 the fleshy roots, or by cuttings. 



PULMONARIA {Lu/igwort).— These 

 are vigorous and hardy in any soil. Most 

 of them grow well under the shade of trees, 

 and all succeed best in shade. They form 

 dense tufts of foliage, generally hand- 

 somely blotched and speckled with white, 

 and make pretty groups in the spring 

 garden, or in semi-wild places, but are 

 worthy of the best places in the flower 

 garden. There are about half-a-dozen 

 kinds, all like each other. P. officijialis 

 and /-■. ir/io'itsfifolta are native plants. P. 

 c;^t7/'/^?//> (sometimes called P. saccharatd) 

 has rose flowers turning to blue, and P. 

 angustifolia bears blue flowers. P. mollis 

 is intermediate between the two, and P. 

 grandijlora is somewhat similar to P. 

 officinalis. P. azurea has rich blue flowers. 

 P. ar-iiernense., with deep blue flowers, is 

 of refined habit and well suited to the 

 rock-garden. There is a white flowered 

 form of it. Chiefly natives of Europe. 

 P. dahurica is sometimes called Mertenzia 

 daln/rica. 



PUNICA {Pomegranate).— Like the 

 Myrtle, the Pomegranate, P. granatum, is 

 grown as a wall shrub, the walls of some 



