7QQ KOSA. [CLASS XII. ORDER III. 



minute prickles upon it, as well as glands. Leaflets from five to seven, 

 large, ovate, clothed with pale pubescence, and somewhat glandular 

 beneath, the margins unequally and mostly doubly serrated, rarely 

 simple. Stipules large, thin, pale, with a fringed glandular margin. 

 Flowers with hr'isily peduncles, thickened and fleshy at the summit, the 

 bracteas large, broad, concave. Calyx with long slender simple seg- 

 ments, leafy at the point, downy and copiously setose at the back. 

 Petals shorter than the calyx segments, a deep pink. Styles included 

 within the calyx tube, hairy. Stigmas roundish, depressed. Fruit 

 rather large, ovate, with a more or less lengthened neck, orange red, 

 and mostly with a few setse upon it, and crowned with the persistent 

 spreading or connivent segments. 



Habitat. — Ireland, Mr. Drummond. 



Shrub; flowering in June. 



This species, said to have been found in Ireland by Mr. Drummond, 

 bears some resemblance to R. villosa, Lind. especially in the general 

 appearance of the leaves, and the thickened summit of the peduncles, 

 which ripens with the fruit. Jt is a smaller plant, and its deep coloured 

 bark, simple calyx segments, the nearly smooth fruit, and much less 

 prickly stem, are characters sufficient to distinguish them from each 

 other. 



The genus Rosa is one of our most extensive and natural. There 

 are about two hundred species known, and from these, by means of 

 cultivation, a list of nearly as many thousands are enumerated, which 

 are divided under the following heads : — 



1. Burnet Roses are varieties obtained from the R. spinoslssima, Linn. 



2. Damask Roses are varieties obtained from the R. Damascena^ 



Mill, a native of Syria. 



3. Cabbage, or Hundred Leaf Hoses, are varieties obtained from 



R. centifolia, Linn, a native of the South of Europe, and 

 amongst these are the Moss Roses. 



4. French Roses are varieties obtained from the R. gallica, Linn, a 



native of the South of Europe. 



5. White Roses are varieties obtained from the R. alba, Linn, a 



native of Germany. 



6. Sweet Briar, or Eglantine Roses, are varieties obtained from the 



R. rubiginosa, Linn. 



7. Chinese Roses are varieties obtained from the R. indica, Linn. 



and the monthly or ever blowing roses from R. semperjlorensj 



Curt, both natives of China. 

 Besides those varieties which may be traced to the species under 

 these diff"erent heads, are a considerable number of others, which 

 have been so intermixed with each other, as to render it impossible 

 to trace out from which they originated ; many of them extremely 

 ornamental to our gardens and shrubberies. 



