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 L U TE A. 



SINGLE YELLOW ROSE. 



This genus contains plants of the deciduous liowering shrub 

 and evergreen kind. 



It belongs to the class and order Icosandria Poh/gynia, and ranks 

 in the natural order of Senticosa-. 



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

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

 Rose; 6. R. pimpi/melUfolia, Small Burnet-leavcd Rose; 7. R. spino^ 



