NAT. ORDER 



RosacccE. 



ROSA P.iRVlFLORA. WHITE CABBAGE ROSE. 



C^ass XII. IcosANDRiA. Order III. Polygynia. 



Gen. C/iar. Fruit, depressed. Peduncles, hispid. Petioles, pubes- 

 cent, somewhat prickly. Stem, smooth. Leaflets, elliptical- 

 lanceolate. Ploicers, mostly ia pairs. 



Spc. Char. Calyx, urceolate, fleshy, five-cleft. Petals, five. Seeds, 

 numerous, hispid. 



This variety of the Rose is a native of the United States, and 

 is found in various parts of the country, from Maine to Carolina, 

 inhabitinc; the deL'livities of hills and rocky places. The calyx vfiiXx 

 the tube is contracted at the mouth, with a five-parted limb ; the 

 segments are somewhat spirally imbricated at the apex in jestivation, 

 and are usually pinnately divided, and numerous ; the carpels are 

 numerou.s, bony, inserted on the inside of the tube of the calyx, 

 which at length becomes bacc^Tte, and enclo.ses them ; they are dry 

 and iiuk hi.sccnt, bearing each a style on the inner side ; styles exser- 

 ted from the constricted part of the calycine tube, sometimes distinct, 

 sometimes collected into a columnar style ; seeds solitary, exalbumi- 

 nous, inverted ; embryo straight, with flattish cotyledons. 



The Rose is known by almost every person at first sight, and 

 has been a favorite flower from time immemorial among the civilized 

 nations of both continents. The shrub varies in size in diflferent 

 species and varieties, and the colors are red, white, purple, yellow, 

 black, striped, or in almost numberless shades and mixtures, from 

 single to semi-double and double. Roses are cultivated in every 



Vol. iii.— 99. 



