388 



then planting them out where they are to remain. They should 

 have a light dry soil and rather warm situation. 



They afford much ornament and variety in the borders and 

 clumps, among other flowering plants. 



2. ROSA LUTE A. 



SINGLE YELLOW ROSE. 



THIS genus contains plants of the deciduous flowering shrub 

 and evergreen kind. 



It belongs to the class and order Icosandria Polygynia, and ranks 

 in the natural order of Senticosx. 



The characters are: that the calyx is a one-leafed perianth: tube 

 ventricose, contracted at the neck; with the border spreading five- 

 parted, globular : segments long, lanceolate-narrow (in some of 

 them two alternate ones appendicled on both sides ; two others, 

 also alternate, naked on both sides; the fifth appendicled on 

 one side only): the corolla has five petals, obcordate, the length 

 of the calyx, inserted into the neck of the calyx: the stamina have 

 very many filaments, capillary, very short, inserted into the neck of 

 the calyx: anthers three-cornered: the pistillum has numerous germs, 

 in the bottom of the calyx : styles as many, villose, very short, com- 

 pressed close by the neck of the calyx, inserted into the side of the 

 germ: stigmas blunt: there is no pericarpium: is a fleshy berry, 

 turbinate, coloured, soft, one-celled, crowned with the rude seg- 

 ments, contracted at the neck, formed from the tube of the calyx : 

 the seeds numerous, oblong, hispid, fastened to the inner side of the 

 calyx. 



The species cultivated are: 1. R. lutea, Single Yellow Rose; 

 2. R. sulphured, Double Yellow Rose; 3. R. blanda, Hudson's-Bay 

 Rose; 4. R. cinnamomea, Cinnamon Rose; 5. R. arvensis, White Dog 

 Rose; 6. R. pimpinnellifolia, Small Burnet-leaved Rose; 7. R- spino- 



