lOO ROCHESTER ACADEMY OF SCIENCE. 



broad, and often broader than long, with slender yellow midribs and 

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

 the lobes ; petioles slender, slightly wing-margined at the apex, 

 grooved, 2.5-4 cm. in length ; stipules linear to lanceolate, glandular, 

 turning red in fading, fugaceous. Flowers 2 cm. in diameter, and 

 very flat when fully expanded, on short, slender pedicels, in compact 

 usually 5-7-flowered compound corymbs ; bracts and bractlets linear, 

 glandular, mostly deciduous before the flowers open ; calyx-tube 

 broadly obconic, the lobes gradually narrowed from wide bases, 

 small, acuminate, entire or slightly and irregularly glandular-serrate, 

 reflexed after anthesis ; stamens 20 ; anthers pale yellow ; styles 4 or 

 5, villose toward the base and surrounded by a broad ring of matted 

 white hairs. Fruit in few fruited erect or spreading clusters, obovate, 

 full and rounded at the apex, gradually narrowed below into the 

 thickened end of the short stout pedicel, dark green and pruinose 

 until late in the season and when fully ripe bright red and lustrous, 

 rather broader than long, 1.2-1. 4 cm. in diameter ; calyx large and 

 prominent, with a short tube, a broad deep cavity, and enlarged 

 spreading and reflexed entire or sparingly serrate lobes often deciduous 

 from the ripe fruit ; flesh thin, yellow, dry and mealy ; nutlets usually 

 4, full and rounded at the apex, gradually narrowed and acute at the 

 base, prominently ridged, with a high broad ridge or rounded and 

 slightly grooved on the back, 7-8 mm. long, 4-5 mm. thick. 



A slender intricately branched shrub 3 to 5 m. in height with 

 stems 6-12 cm. in diameter, covered with pale olive-green bark, dark 

 and scaly toward the base, erect branches, and thin nearly straight 

 branchlets olive-green tinged with red and marked by many small 

 pale lenticels when they first appear, dull orange-green at the end of 

 their first season, and dark gray or reddish brown the following year 

 and armed with \'ery numerous slender nearly straight bright chest- 

 nut-brown shining spines 4-6 cm. in length, and long persistent on the 

 stems. Flowers at the end of May. Fruit ripens early in November 

 and falls from the middle to the end of the month, often retaining its 

 form and color until the following spring. 



Rochester ; common on both sides of the Genesee River north of 

 the city, John Dunbar, Henry T. Brown and M. S. Baxter, May, 

 1 90 1, C. S. Sargent, John Dunbar and M. S. Baxter, October, 1902. 



