Experiments on the Vegetation of Rose Seeds. 247 



£rica mammosa . . . Sept. to jMarch 



— verticilldta . . . Sept. to March 



— colorans . . • Oct. to June 



— concinna . . . Oct. to Nov. 



— Monsonidna . . Oct. to May. 



We hope the cuhivation of this fine tribe will rapidly increase, 

 and that jNlr. Towne's list of species and varieties, as showing 

 what kinds are already known in our gardens, together with Mr. 

 Russell's articles upon the treatment of the plants, will afford all 

 the aid that is necessary to enable those who are unacquainted 

 with heaths, to commence their cultivation. — Ed. 



Art. III. Experiments on the Vegetation of Hose Seeds. By 

 R. Bui ST, Florist, &.c., Philadelphia. 



Sir, — Some time last year I observed in your Magazine, a 

 difference of opinion between two of your correspondents, in re- 

 gard to the vegetating of rose seeds. I then determined on 

 .sowing some of the many varieties, and send you the result of 

 my experiments. 



No. 1. Seeds of Rosa, indica odoruta, or tea rose, were sown 

 on the first of December, 1837, and vegetated in a temperature 

 of between 58° and 65° Fahr., in from six weeks to three 

 months, coming up occasionally during that period; the most of 

 them have now bloomed, but not sufficiently strong to determine 

 their character. 



No. 2, of the same seed, and picked at the same time, was 

 kept four weeks in sand, and sown on the ninth of January, J 838, 

 and vegetated generally in seven weeks. The plants grew strong- 

 er and flowered better than No. 1, although treated in the same 

 manner. 



No. 3, seeds of the same, kept in sand till the first of February, 

 and sown in pots and placed in dung or manure hot-bed, vegetat- 

 ed beautifully in six weeks, temperature from G5° to 75° Fahr., 

 and are now promising, in growth, bloom and character, to sur- 

 pass Nos. 1 and 2. 



No. 4, seeds of Lamar(jue Noisette rose, collected from the 

 plant in the open air in January, 1838, and sown along with those 

 of No. 3, vegetated at the same time and have grown much 

 -Stronger than any of the preceding, but only as yet three out of 



