RYDBERG: NOTES ON ROSACEAE 47 
I. ROSA MULTIFLORA Thunb. 
This species is a native of Japan and China. It is extensively 
cultivated, and has developed into numerous horticultural var- 
ieties, mostly with double flowers. Numerous hybrids have also 
been produced. It has become naturalized in Alabama and on 
Porto Rico, and is otherwise found occasionally escaped in the 
Southern States. Within the area covered by this paper, there 
is a simple record from Maryland. The species is distinguished 
from its relatives by the fringed stipules. 
2. ROSA SETIGERA Michx. 
This is a native of the Southern States and is common from 
North Carolina and Kentucky to Alabama and Florida. It is 
found, however, outside of this range as far west as Kansas and 
Arkansas. The following localities north of Kentucky have 
been recorded. The specimens collected at these places might 
have been from plants escaped from cultivation. 
NEw York: Oneida, Maxon; Ithaca, Coville. 
3. ROSA RUBIFOLIA R. Br. 
This species has been regarded as the same as the preceding. 
In its typical form, however, with its broader and thicker leaflets 
densely pubescent beneath, it seems quite distinct. The few 
intermediate forms seen by the author may have been hybrids. 
R. rubifolia has its best development in the Mississippi Valley and 
is rare east of the Alleghanies. It extends further north than 
R. setigera. The following specimens are here recorded from 
outside of the range proper. These may have been collected 
from escaped plants, as this species, as well as R. setigera, is 
extensively cultivated. 
- NEw Jersey: Milburn, Mackenzie. 
OnTARIO: Sandwich and Pelee Island, Macoun. 
II. BRACTEATAE 
One species. 4. R. bracteata. 
4. Rosa BRACTEATA Wendl. 
A native of China, often cultivated and occasionally escaped 
and naturalized from Virginia to Florida and Texas. It is well 
