PTEROCEPHALUS. THE ENGLISH FLOWER GARDEN. 



PUNICA. 



749 



warmer parts. There are good trees at 

 Claremont and other places and one in 

 Hyde Park. The foliage 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. 



co untries 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 : rJwifolia 

 Japan, stenoptera China, and Dehwayi 

 Yun-Nan. 



PTEROCEPHALUS. P. Parnassi 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 pterocephala. Greece. 



PTEROSTYRAX. P. 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. corymbosum, 

 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 Halesia 

 hispida and H. corymbosa, but ever since 

 their introduction they have been known 

 as Pterostyrax in gardens. 



PUERARIA (Kudsu\P. thunbergi- 

 ana is a remarkable and climbing plant 

 of almost tropical vigour, 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 and that has as yet been 

 little tried in England. The flowers are 

 a dull purple, and it is said to be hardy 

 even in N. Germany. 



PULMONAEIA (Lungwort}. 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. officinalis 

 and P. angustifolia are native plants. P. 

 officinalis (sometimes called P. saccharata) 

 has rose flowers turning to blue, and P. 

 angustifolia bears blue flowers. P. mollis 

 is intermediate between the two, and P. 

 grandiflora is somewhat similar to P. 

 officinalis. P. azurea has rich blue flowers. 

 Chiefly natives of Europe. P. dahuricais 

 sometimes called Mertenzia dahurica. 



PUNICA (Pomegranate}. i:\te the 

 Myrtle, the Pomegranate, P. granatum, is 

 grown as a wall shrub, the walls of some 

 old houses being covered with it, and it 

 makes a very beautiful covering with its 

 dense mass of tender green foliage. The 

 type has single flowers of a brilliant 

 scarlet, but the best is the double-flowered 

 sort (flore-pleno), which is also scarlet, and 

 is that most commonly seen. There is 



