112 FLOWER-GARDENING. 



Polygata cordata, Heart-shaped Polygata. A beautiful little 

 plant, producing abundance of ricb purple flowers nearly all 

 the winter. 



Protea. A beautiful race of plants, the foliage of which is 

 very diversified, and the flowers also ; being red, white, straw, 

 brown, green, and purple, and most of these colors are fre- 

 quently to be seen on the same plant ; in flower from March 

 to June. 



Primula. In this genus are embraced all the varieties of 

 the Primrose, Polyanthus, Auricula, Cowslip, Oxhp, etc., 

 already inserted in our Biennial and Perennial catalogues. 

 The flowers, which appear early in spring, are mostly sweet- 

 scented, and of various colors, red, white, yellow, lilac, purple, 

 crimson, etc., which in some are beautifully variegated. The 

 above are natives of England ; besides which are two varieties, 

 white and pink, natives of China, producing umbels of flowers 

 from January to May. 



Pyrus Japonica alba, or Cydonia Japonica. One of the 

 earliest flowering dwarf shrubs of the garden, producing 

 beautiful blush flowers ; there is another variety, which pro- 

 duces scarlet blossoms, already described in our catalogue of 

 shrubs. 



Reseda, Mignonette. This fragrant little plant has been 

 already treated of as an annual ; it may, however, be kept 

 under cultivation from January to December, by sowing seed 

 at diff'erent seasons in a green-house or warm room. 



Rhododendron, Rose Bay. A beautifal genus of plants, 

 chiefly natives of India, furnishing clusters of flowers of various 

 shades, as purple, scarlet, or crimson, and these variegated in 

 spots and flakes ; in flower from March to May. 



Rosea, Rose. This Queen of FlowervS, so universally ad- 

 mired, nature seems to have distributed over the whole civil- 

 ized world ; and varieties have been so multiplied of late 

 years, as to render it difficult to make a judicious choice ; many 

 of the new varieties, however, being shy bloomers, are not so 

 desirable for green-house culture as the common China Rose, 



