ir8 ROCHESTER ACADEMY OF SCIENCE. 



often doubly serrate above, with gland-tipped teeth and deeply- 

 divided, generally only above the middle, into 3 or 4 pairs of broad 

 acuminate spreading lobes ; about one-third grown when the flowers 

 open and then membranaceous, dark yellow-green and roughened 

 above by short pale hairs and glabrous below ; at maturity thick, dark 

 bluish green and smooth on the upper surface, pale and glaucous on 

 the lower surface, 5-6. 5 cm. long, 4-5 cm. wide, with slender yellow 

 midribs and 4 or 5 pairs of thin primary veins arching obliquely to the 

 points of the lobes ; petioles slender, slightly grooved, 2-3 cm. in length. 

 Flowers about i cm. in diameter on long slender pedicels, in wide loose 

 many-flowered thin-branched compound corymbs; bracts and bractlets 

 linear, glandular, small, mostly deciduous before the flowers open ; 

 calyx narrowly obconic, the lobes very slender, acuminate, entire or 

 rarely sparingly serrate, reflexed after anthesis ; stamens usually 5 ; 

 anthers small, dark pink ; styles 2 or 3. Fruit drooping on long 

 slender pedicels, in many-fruited clusters, oblong-obovate, gradually 

 narrowed and tapering belo\\% crimson, lustrous, marked by numerous 

 small pale dots, from 1.2-4 cm. long, about I cm. wide ; calyx small, 

 with a narrow shallow cavity and erect incur\ed lobes, bright red on 

 the upper side below the middle, usually persistent on the ripe fruit ; 

 flesh thin, yellow, dry and mealy ; nutlets 2 or 3, broad full and 

 rounded at the apex, gradually narrowed and acute at the base, 

 ridged on the back, with a wide deeply grooved ridge, 7-8 mm. long. 



A shrub or slender tree 6-8 m. in height with a stem occasionally 

 2-3 m. long and 1.5-2 dm. in diameter, covered with close scaly dull 

 ashy gray bark, small erect and spreading branches furnished with 

 many short spine-like lateral branchlets, forming a somewhat oblong 

 head, and slender nearly straight terminal branchlets, light orange- 

 green and marked by numerous small pale lenticels when they first 

 appear, dull orange or reddish brown at the end of their first year, 

 becoming dark gray the following season and armed with occasional 

 stout nearly straight bright red-brown shining spines 2.5-3 ^^- i" 

 length, rarely persistent on old stems. Flowers at the end of 

 May and during the first week of June. Fruit ripens toward the 

 middle of October and falls about the end of the month. 



Rochester, C. S. Sar-gent, John Dunbar, C. C. Lmiey, Septem- 

 ber, 1900, John Dnnbar, June 3 and October 15, igoi, C. S. Sar- 

 gent, September 29, 1902 ; Rush, New York, M. S. Baxter, Septem- 

 ber, 1902. 



