1905.] NATURAL SCIENCES OF PHILADELPHIA. 629 



densely villose pedicels, in wide 6-12-flo\vered villose corymbs, with 

 linear glandular bracts and bractlets mostly deciduous before the 

 flowers open; calyx-tube narrowly obconic, coated toward the base 

 with long matted white hairs, the lobes gradually narrowed, acuminate, 

 coarsely glandular-serrate, puberulous on the outer and villose on the 

 inner surface, red toward the apex, reflexed after anthesis ; stamens 5 or 

 6; anthers pink or light rose color; styles 5, surrounded at the base by 

 a narrow ring of pale tomentum. Fruit ripening at the end of August 

 and soon falling, on slender slightly hairy reddish pedicels, in drooping 

 usually many-fruited clusters, globose to rarely pyriform-globose or 

 oblong-globose, concave at the base, concave or flattened at the apex, 

 pubescent or puberulous at the ends, scarlet, dotted with yellow or 

 orange, 1.2-1.4 cm. in diameter; calyx little enlarged, with a wide 

 shallow cavity, and spreading incurved coarsely serrate lobes covered 

 above with short white hairs and dark red toward the base on the upper 

 side; flesh thick, dark yellow, soft, sweetish acid; nutlets 5, gradually 

 narrowed and acute at the ends, slightly grooved on the back, 7-8 mm. 

 long and about 4 mm. wide. 



A tree 4—6 m. high, with a short trunk sometimes 30 cm. in diameter, 

 covered with dark gray bark separating into thin papery scales or often 

 shrubby with two or three stems, long ascending flexuose branches 

 forming a round -topped head, and stout nearly straight branchlets 

 marked by small scattered pale lenticels, dark orange color and pubes- 

 cent when they appear, soon becoming glabrous, dark reddish or pur- 

 ple-brown and lustrous during their first season, lighter-colored the 

 following year and ultimately ashy-gray, and armed with numerous 

 straight or slightly curved bright chestnut-brown shining spines 2.5-3 

 cm. in length, becoming elongated and much branched on old stems 

 and branches. 



Berks county: Borders of meadows, in low moist soil, near Kutztown, 

 C. L. Gruher (Nos. 144, type!, and 19), 1902, May and September, 1903, 

 (No. 207), August, 1904. 



No. 184, Fretz, meadows near Sellersville, Bucks county, a tree now 



destroyed, with 8-10 stamens and rather smaller leaves more frequently 



cuneate at the base and often oblong-ovate, is doubtfully referred to 



this species. 



YI.— FLABELLAT.E. 



Flowers cup-shaped, less than 2 cm. in diameter, on puberulous or 

 glabrous pedicels; anthers rose-purple; fruit narrow-oblong, 



1. C. hobnesiana. 



Flowers not cup-shaped, 2 cm. or more in diameter, on villose pedicels; 



anthers light rose color or pink; fruit subglobose to short-oblong, 



2. C. arcuata. 



