210 PROCEEDINGS OF THE ACADEMY OF [March, 



serrate, with straight or incurved glandular teeth, and very slightly 

 divided usually only above the middle into 2 or 3 pairs of narrow 

 acuminate lobes; about half-grown when the flowers open late in May 

 and then yellow-green and roughened above by short white hairs and 

 pale below, and at maturity very thin, dark yellow-green and smooth 

 on the upper surface, paler on the lower surface, 3-4 cm. long and 2.5-3 

 cm. wide, with thin midribs and primary veins; pedioles slender, 

 slightly wing-margined at the apex, glabrous, with small scattered 

 often persistent glands, 1.2-1.8 cm. in length. Flowers 1-1.2 cm. in 

 diameter, on long very slender pedicels, in small mostly 6-8-flowered 

 corymbs, with small linear-obovate to linear glandular bracts and 

 bractlets often persistent until the flowers open, the long lower pedun- 

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

 the lobes long, very slender, acuminate, entire or minutely glandular- 

 dentate near the middle, reflexed after anthesis ; stamens 5-10 ; anthers 

 light rose color; styles 3. Fruit ripening about the 20th of September, 

 on slender red pedicels, in few-fruited clusters, short-oblong to slightly 

 obovate, full and rounded at the ends, scarlet, lustrous, 1.2-1.3 cm. 

 long and about 1 cm. in diameter; calyx little enlarged, with a deep 

 narrow cavity, and small spreading lobes dark red on the upper side 

 below the middle; flesh thin, yellow, soft and juicy; nutlets 3, gradually 

 narrowed and rounded at the ends or acute at the apex, ridged on the 

 back, with a broad low grooved ridge, 5-6.5 mm. long and 3-3.5 mm. 

 wide. 



A shrub 3-4 m. high, with slender stems covered with smooth 

 pale gray bark and spreading into thickets, and slender zigzag branch- 

 lets, bright green when they first appear, becoming light chestnut- 

 brown, lustrous and marked by small pale lenticels in their first 

 season and dull red-brown the following year, and armed with numer- 

 ous slender straight or curved chestnut-brown spines 2-3 cm. long. 



Low moist soil in meadows, Throop, near Scranton, Lackawanna 

 County, A. Twining, (No. 21 type and No. 22) May 24 and September 

 22, 1907; near Scranton, A. Twining, (No. 23) May 24, 1907, September 

 29, 1908; Dunmore, near Scranton, A. Twining, (No. 27) May 28, 

 1907, September 20, 1908; near Scranton, A. Twining, (No. 53) Septem- 

 ber, 1907; Chinchilla, Lackawanna County, A. Twining, (No. 65) 

 October 3, 1907. 



No. 28 from Dunmore with larger flowers, 5-10 stamens and larger 

 fruit, provisionally referred to this species, is perhaps distinct. A. 

 Twining, May 28 and September 27, 1907. 



