246 PROCEEDINGS OF THE ACADEMY OF [March. 



wing-margined at the apex, often rose color below the middle in the 

 autumn, 1-1.5 cm. in length; leaves on vigorous shoots often rounded 

 at the broad base, more coarsely serrate and more deeply lobed, and 

 often 5-6 cm. long and broad. Flowers 1.8 cm. in diameter, on long 

 stout pedicels, in mostly 12-15-flowered corymbs, the elongated lower 

 peduncles from the axils of upper leaves ; calyx-tube narrowly obconic, 

 the lobes gradually narrowed from the base, long, slender, acuminate, 

 finely glandular-serrate near the middle, reflexed after anthesis; 

 petals tinged with pink; stamens 15-20; anthers bright pink; styles 

 3 or 4. Fruit ripening the end of October, on long stout pedicels, 

 in drooping few-fruited clusters, short-oblong, full and rounded at 

 the ends, dark red, lustrous, marked by small pale lenticels, 1-1.2 

 cm. in diameter; calyx prominent, with a wide deep cavity pointed in 

 the bottom, and reflexed persistent lobes dark red on the upper side 

 below the middle; flesh thin, dry and mealy; nutlets 3 or 4, narrowed 

 and rounded at the apex, acute at the base, ridged on the back, with 

 a broad Low ridge, 6-7 mm. long and about 4 mm. wide, and furnished 

 with very shallow depressions on the inner faces. 



A broad shrub 3-4 m. high, with small steins covered below with 

 pale scaly bark and smooth above, and spreading into large thickets, 

 and stout slightly zigzag branchlets light yellow-green and marked by 

 pale lenticels when they first appear, becoming light chestnut brown 

 and lustrous in Mieir first season and light reddish-brown the following 

 year, and armed with stout straight or slightly curved purplish shining 

 spines 2-3.5 cm. long, and numerous and persistent on old stems. 



Low moist rich soil, Keyser Valley, near Scranton, Lackawanna 

 County, common, A. Twining, (No. 47 type) June 13 and October 

 22, 1907. 



B. Nutlets with longitudinal cavities on their ventral faces (Group 

 Tomentosse). 



11. Tomentosse. 



Fruit obovate to subglobose or short-oblong, orange-red or scarlet, 

 becoming soft and succulent at maturity, 6-12 mm. in diameter; 

 nutlets 2 or 3, obtuse at the ends, prominently ridged on the 

 back; flowers small, opening late, in tomentose or viilose rarely 

 glabrous corymbs; leaves thin to subcoriaceous. 

 Leaves thin with midribs and veins only slightly impressed on 



their upper surface; stamens 20. 

 Corymbs viilose; leaves pubescent below during the season. 



Anthers rose color 1. C. tomentosa. 



Anthers pale yellow 2. C. strudilis. 



