1910.] NATURAL SCIENCES OF PHILADELPHIA. 177 



in diameter, and covered with dark gray bark broken into closely 

 appressed scalas, and slender zigzag branchlets, dark orange-green 

 and marked by pale lenticels when they first appear, becoming dark 

 chestnut-brown and lustrous in their first season and dark red-brown 

 the following year, and armed with very numerous slender purple 

 shining spines 3.5-4 cm. long. 



Borders of woods in rich rocky soil, Nine-mile Run, Pittsburg, 

 Allegheny County, O. E. Jennings, (No. 40 type) October 9, 1905, 

 May 21, 1906, 0. E. Jennings and B. H. Smith, October 5, 1907. 



14. Crataegus relicta n. sp. 



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

 abruptly cuneate at the wide base, coarsely often doubly serrate, 

 with straight or incurved glandular teeth, and more or less deeply 

 divided into 4 or 5 pairs of short broad acuminate lateral lobes ; more 

 than half-grown when the flowers open early in May, and at maturity 

 thin but firm in texture, dark blue-green, smooth and lustrous on 

 the upper surface, pale bluish green on the lower surface, 5-8 cm. long 

 and 4.5-6 cm. wide, with thin yellow midribs and primary veins; 

 petioles slender, occasionally glandular, 2-3 cm. in length. Flowers 

 on short stout pedicels, in compact 5-8-flowered corymbs; calyx-tube 

 broadly obconic, the lobes gradually narrowed from wide bases, long, 

 acuminate, entire or occasionally minutely dentate, reflexed after 

 anthesis; stamens 10; styles 3, surrounded at the base by a narrow 

 ring of pale hairs. Fruit ripening early in October, on stout erect or 

 spreading pedicels, in few-fruited clusters, subglobose but often rather 

 broader than high, slightly mammillate at the base, green flushed 

 with dull red, 9-10 mm. in diameter; calyx little enlarged, without 

 a tube, with a narrow shallow cavity tomentose in the bottom, and 

 small spreading often deciduous lobes; flesh hard, greenish yellow; 

 nutlets 3-5, broad and rounded at the base, gradually narrowed and 

 rounded at the apex, or when 5 acute at the ends, slightly and irregu- 

 larly ridged or rounded and grooved on the back, 6-6.5 mm. long and 

 about 4 mm. wide. 



A shrub 3-4 m. high, with numerous large spreading stems covered 

 with dark scaly bark and spreading into broad thickets, slender only 

 slightly zigzag branchlets dark chestnut brown, lustrous and marked 

 by pale lenticels in their first season and dull reddish brown the follow- 

 ing year, and armed with few slender straight purple spines 2-3.5 cm. 

 long and compound and persistent on old stems. 



Rocky knoll, Orbisonia, Huntingdon County, B. H. Smith and 

 12 



