1910.] NATURAL SCIENCES OF PHILADELPHIA. 225 



dark bark, and nearly straight branchlets dark orange-green tinged 

 with red and marked by pale lenticels when they first appear, becom- 

 ing light chestnut brown and lustrous in their first season and dull 

 red-brown the following year, and armed with numerous very slender 

 straight purple shining spines 4-4.5 cm. long. 



Borders of woods, Shade Gap Road, near Orbisonia, Huntingdon 

 County, B. H. Smith, (No. 317 type) May 20, 1906, October 8, 1907. 

 5. Crataegus varians n. sp. 



Glabrous. Leaves ovate to obovate, acuminate, gradually or 

 abruptly narrowed and cuneate at the entire base, coarsely often 

 doubly serrate, with broad straight glandular teeth, and slightly 

 divided into 3 or 4 pairs of broad acute lateral lobes; nearly half- 

 grown when the flowers open from the middle to the end of May and 

 then very thin, yellow-green, smooth and lustrous above and paler 

 below, and at maturity thin, yellow-green, pale, 5-7 cm. long and 

 3-5 cm. wide, with slender prominent midribs, and thin primary 

 veins; petioles slender, narrowly wing-margined sometimes nearly to 

 the middle, 2.5-4 cm. in length on the lower surface. Floicers 

 2.5 cm. in diameter, on short slender pedicels, in very compact mostly 

 5-7-flowered corymbs, the lower peduncles from the axils of upper 

 leaves; calyx-tube broadly obconic, the lobes separated by wide 

 sinuses, gradually narrowed from the base, short, broad, acuminate, 

 entire or occasionally minutely glandular-dentate near the middle, 

 reflexed after anthesis; stamens 10-15; anthers cream color; styles 

 3 or 4, surrounded at the base by a narrow ring of pale tomentum. 

 Fruit ripening and falling at the end of September, on long stout 

 erect or spreading pedicels, in few-fruited clusters, subglobose, dark 

 red blotched with green, marked by numerous large pale dots, 1-1.2 

 cm. in diameter; calyx little enlarged, with a short tube, a wide 

 shallow cavity, and spreading often deciduous lobes; flesh green and 

 hard; nutlets 3 or 4, gradually narrowed and acute at the ends, or, 

 when 3, broad and rounded at the apex, ridged on the back, with a 

 broad deeply grooved ridge, 6-6.5 mm. long and about 4 mm. wide. 



An irregularly topped shrub 3-7 m. high, with several large spread- 

 ing stems covered with pale scaly bark, small spreading and ascending 

 branches, and slender nearly straight branchlets, dark orange-green and 

 marked by numerous pale lenticels when they first appear, becoming 

 bright chestnut brown and lustrous in their first season and light red- 

 or orange-brown the following year, and armed with stout or slender 

 straight or slightly curved chestnut brown shining spines 2.5-4 cm. 



long. 



15 



