Rosacece Rosa. 171 



it a better position. Its flowers are small, white and double, 

 and sufficiently resemble, in the narrowness and number of 

 petals, the flowers of our common garden Anemones. Like 

 the preceding it comes from China, and is evidently modified 

 by long culture. Several sub- varieties are reported, under the 

 names Centifolia, Pumila, Pompon Royal, etc., which, how- 

 ever, might without inconvenience be reunited under the 

 simple name borne by the species. 



XI. ROSA BERBERIDIFOLIA, the Barberry- or Simple-leaved 

 Rose, we merely mention to complete the series of Roses, for 

 it is hardly known in our gardens. It is an undershrub 2 to 3 

 feet high, producing suckers abundantly, armed with prickles, 

 and its simple leaves are obovate, denticulate, and destitute of 

 stipules. The flowers are about the size of the Banksian, 

 solitary, bright yellow, with a deep purple spot at the base of 

 each petal. This curious species, by some botanists con- 

 sidered as forming the type of a distinct genus, under the name 

 Hulth&mia, or Lowea, is only found in the saline plains of 

 the North of Persia and Soongaria, where it is so abundant 

 that it is used for heating ovens. Its culture is difficult in the 

 North, where it flowers without fruiting ; but it would doubt- 

 less succeed better in the South, and probably some interesting 

 varieties might be obtained, either directly or by crossing it 

 with other species. In fact, one very curious hybrid exists 

 already, known as Hardyi, the issue of a cross between R. clino- 

 phylla and R. berberidifdlia, the latter furnishing the pollen. 

 This hybrid resembles its mother in its compound leaves and 

 large stature, and its father in its ternate prickles, and especially 

 in its yellow flowers, whose petals bear a brown spot at the 

 base. 



TRIBE VII. 



Calyx-tube adnate to the ovary (or carpels immersed in the 

 fleshy peduncle). Stamens numerous. Fruit pomaceous or 

 drupoid. Trees and shrubs. 



9. PYRUS. 

 (Including Cydonia, Sorbus, &c.) 



Trees or shrubs. Leaves deciduous, simple or pinnate ; 

 stipules deciduous. Flowers white, pink, or rose, in terminal 



