ROSACEAE 121 



sometimes are solitary, and are seated on pedicels up to ^ inch 

 long, which are glandular-hispid or, rarely, almost smooth. The 

 tube of the calyx is glandular-hispid and the attenuated calyx 

 lobes, sometimes foliaceous at the tip, are glandular-hispid on 

 the back and tomentose on the inside and on the margins. They 

 spread and become reflexed after flowering and are tardily 

 deciduous. The fruit matures in autumn as a red, glandular- 

 hispid, most often depressed-globose but rarely somewhat oblong 

 hip about }i inch in diameter, witn seeds attached to the bottom. 



Distribution. — The Swamp Rose grows in wet places from 

 Nova Scotia south to Florida and west to Minnesota and Mis- 

 sissippi. In Illinois, it occurs through much of the state and may 

 be looked for wherever suitably wet habitats occur. 



ROSA CAROLINA Linnaeus 

 Pasture Rose 



The Pasture Rose, fig. 27, is a shrub with erect, terete stems 

 up to 3 feet, but generally li/^ to 2 feet, tall, which are smooth, 

 or rarely glandular-hispid, and thickly covered when young with 

 stout, weak prickles. The prickles are arranged singly about 

 the stem, often in pairs below leaves on the branchlets, and are 

 more or less deciduous after the first year. They are straight, 

 recurved, reflexed, or rarely point forward, and sometimes young 

 prickles are flattened at the base. The leaves are made up of 

 5 to 7 leaflets, which are lanceolate-elliptic to nearly orbicular, 

 and generally about \]/^ inches long by ^ inch wide, acute at 

 the apex or sometimes rounded, and acute or narrowed at the 

 base. The margins are sharply and closely serrate, and the sur- 

 face is generally smooth above and glabrous or more or less 

 densely pubescent beneath. Lateral leaflets are sessile or nearly 

 so, and terminal leaflets stand on stalks about ]^ inch long. Both 

 petioles and rachises are more or less pubescent, glandular, and 

 prickly, and the stipules, about }i inch long and l/i inch wide, 

 generally have some teeth and some glands on the margin. 



The flowers, which bloom from about the first of June until 

 the middle of August, usually are solitary or in pairs or clusters 

 of 3 at the end of branchlets and may be 2 inches or more in 

 diameter. They stand on more or less glandular-hispid pedicels 

 1 to 1 14 inches long. The calyx tube is more or less glandular- 

 hispid, and the lobes are lanceolate-cordate and often expanded 



