154 PROCEEDINGS OF THE ACADEMY OF [March, 



branches forming a symmetrical round-topped head, and slender 

 nearly straight branchlets dark green more or less tinged with red and 

 marked by pale lenticels when the}' first 'appear, becoming dark olive 

 green in their first season and dull reddish brown the following year, 

 and armed with numerous slender straight olive green, ultimately dark 

 brown, spines 3-3.5 cm. long. 



Deep bottom lands, on the Little Juniata River, near Elizabeth 

 Furnace. East Altoona, Blair County, B. H. Smith, (No. 280 type) 

 May 22, 1905, B. H. Smith and C. S. Sargent, September 27, 1905. 



Distinct in the olive green color of the branchlets and spines. 

 4. Crataegus aocincta n. sp. 



Glabrous. Leaves oblong-ovate, acute or acuminate or rarely 

 rounded and short-pointed at the apex, gradually narrowed to the 

 long slender entire base, and finely serrate above the middle, with 

 straight glandular teeth; about half-grown when the flowers open at 

 the end of May and then very thin, dull bluish green above and paler 

 below, and at maturity thin, dark green, 4.5-5 cm. long and 1.5-2 cm. 

 wide, with thin prominent midribs and thin primary veins; petiole- 

 slender, narrowly wing-margined to below the middle, often rose-color 

 in the autumn. 4-8 cm. in length; leaves on vigorous shoots obovate, 

 acuminate and long-pointed at the apex, coarsely doubly serrate, and 

 often 6 cm. long and 3.5-4 cm. wide, with stout broadly winged peti- 

 oles. Flowers 1-1.2 cm. in diameter, on long slender pedicels, in 

 broad, lax. 15-20-flowered corymbs, the lower peduncles from the axih 

 of upper leaves; calyx-tube narrowly obconic, the lobes long, slender, 

 acuminate, entire, reflexed after anthesis; stamens 7-10, mostly 10; 

 anthers rose color: styles 1 or rarely 2. Fruit ripening in October, on 

 long slender pedicels, in drooping many-fruited clusters, narrow-oval, 

 scarlet, lustrous, marked by long pale lenticels, 1.2-1.4 cm. long 

 and 7-8 cm. in diameter; calyx little enlarged, with a narrow 

 deep cavity pointed in the bottom, and spreading and appressed 

 persistent lobes; flesh thin, yellow, dry and mealy; nutlet, rounded 

 at the apex, gradually narrowed to the rounded base, slightly and 

 irregularly ridged, 8-9 mm. long and 4-4.5 mm. in diameter, or when 

 2 gradually narrowed and rounded at the ends, more prominently 

 ridged on the back and 3-4 mm. wide. 



A tree 7-8 m. high, with a trunk sometimes 2 dm. in diameter 

 covered with light gray scaly bark, spreading branches forming a 

 round-topped head, and slender slightly zigzag branchlets light orange- 

 green when they first appear, becoming light chestnut brown and 

 lustrous in their first season and dull red-brown the following year. 



