16 JOURNAL OF THE ARNOLD ARBORETUM [vol. hi 



Cultivated at the Arnold Arboretum under No. 1579 (sent from Mt. 

 Desert Island, Maine, in 1881 by Professor R. T. Jackson); specimens 

 collected June 26 and September 29, 1902 (No. 3) and September 16, 

 1921 (No. 1579, type) preserved in the herbarium of the Arnold Arbore- 

 tum. The following specimens though not typical, are also referable to 

 this variety: Maine: Mt. Desert Island, Somersville, September 21, 

 1892, M. L. Fernald (a somewhat abnormal form with deeply incised- 

 serrate leaflets); Moore's Harbor, Isle Au Haute, Knox County, August 

 21, 1913, A. F. Hill (No. 1150); South Poland, Androscoggin County, 

 1895, Kate Furbish (partly). (All from the herbarium of the New Eng- 

 land Botanical Club). Massachusetts: Jamaica Plain, Well's Farm, 

 July 12, 1902, A. Rehder. Connecticut, Southington, Sept. 2, 1902, 

 C. S. Sargent. 



The living plants of this variety look quite distinct from the typical 

 form of P. virginiana on account of its very lustrous, dark green leaves 

 and dense habit; it forms wide dense clumps, with upright stems to 

 1 m. tall but usually lower, the branches are spreading and often more 

 or less pendant and the outer shorter stems of the clump often procumbent; 

 sometimes all the stems are low and their spreading slender branches 

 procumbent. The leaves of the shoots are usually 9-foliolate, those of 

 the flowering branchlets 7-foliolate or sometimes 9-foliolate; the leaflets 

 are elliptic or narrow-elliptic to elliptic-obovate or obovate, distinctly 

 cuneate at the base, acute or sometimes rounded at the apex, 1.5-3.5 

 cm. long, sharply serrate with often slightly incurved teeth, glabrous or 

 sometimes slightly pubescent on the midrib beneath; rachis usually with 

 few small prickles and sometimes slightly pubescent. The flowering 

 branchlets are not bristly and sometimes without prickles. 



As an ornamental plant it is very handsome on account of its dens 

 rather spreading habit, its dark green leaves, their color in pleasing contrast 

 to the red petioles and branchlets; the large pink flowers and the orna- 

 mental red hips in autumn are not different from those of the typical 

 form. 



Rosa Carolina var. glandulosa, conxb. nov. — R. serrulata Rafinesque 

 in Ann. G£n. Sci. Phys. v. 218 (1820). — Rydberg in N. Am. Fl. xxn. 

 500 (1918).- — R. parviflora var. j8. glandulosa Crepin in Bull. Soc. Pot. 

 Pelg. xv. 68 (1876). — R. parviflora var. 8 setigera Crepin, 1. c. (1876), 

 ? in part. — R. mexicana S. Watson in Proc. Am. Acad. xvn. 354 (1882), 

 not Willdenow. 



Specimens examined: Pennsylvania: Mountain Park, Luzerne 

 County, July 4, 1907, A. Tunning (No. 10). District of Columbia: 

 Takoma Park, June 3, 1899, T. A. Williams. Virginia: Natural 

 Bridge, Rockbridge County, September 16, 1888, C. S. Sargent; near 

 Suffolk, Nansemond County, August 21, 1908, A. Rehder. West Vir- 

 ginia: near Durbin, Pocahontas County, August 26, 1907, A. Rehder; 



White 



County, August 31, 1907, A. 



