1905.] NATURAL SCIENCES OF PHILADELPHIA. 621 



1.2-1.5 cm. long and 1.1-1.3 cm. wide; calyx little enlarged, with a 

 deep cavity and closely appressed usually persistent lobes red above 

 toward the base; flesh thin, yellow, occasionally slightly tinged with 

 red, sweet, rather juicy; nutlets 3 or 4, gradually narrowed and rounded 

 at the ends, 5-6 cm. long and 3-4 mm. wide. 



A bushy tree occasionally 3 m. high, with a short trunk 12-14 cm. in 

 diameter covered with light gray scaly bark, numerous ascending 

 flexuose gray branches forming a round-topped head, and slender 

 nearly straight branchlets marked by small pale lenticels, orange- 

 brown when they first appear, dark reddish-brown during their first 

 year and dull gray the following season, and armed with slender straight 

 or slightly curved bright red-brown lustrous ultimately ashy-gray 

 spines 2.5-5 cm. in length, becoming branched on large stems. 



Berks county: Banks of streams, near Kutztown, C. L. Gruber (No. 

 9), 1901, May and September, 1903. 

 14. Crataegus longipetiolata n. sp. 



Leaves Ijroadly ovate to oval, full and rounded to truncate or con- 

 cave-cuneate at the broad base, coarsely doubly serrate, with straight 

 glandular teeth, and slightly divided into 4 or 5 pairs of small acuminate 

 lobes, about half-grown when the flowers open the middle of May and 

 then very thin, light yellow-green and slightly roughened above by 

 short white hairs, pale and glabrous below, and at maturity thin, light 

 yellow-green, and nearly smooth on the upper and pale on the lower 

 surface, 5-6 cm. long and 4.5-5 cm. wide, with thin yellow midribs, and 

 slender primary veins extending obliquely to the points of the lobes ; 

 petioles very slender, slightly grooved on the upper side, sparingly or 

 not at afl glandular, often 3.5-4 cm. in length. Fhwers 1.6-1.8 cm. 

 in diameter, on slender glaJDrous pedicels, in 5-10-flowered narrow com- 

 pact corymbs, their bracts and bractlets deciduous before the flowers 

 open; calyx-tube broadly obconic, the lobes slender, elongated, acumi- 

 nate, entire or occasionally slightly serrate near the middle; stamens 

 6-9; anthers red; styles usually 3 or 4, surrounded at the base by a 

 broad ring of long white hairs. Fruit ripening the middle of September, 

 on slender drooping pedicels, in few-fruited clusters, oblong-obovate, 

 dark red, lustrous, 9-12 mm. long; calyx little enlarged, with a narrow 

 shallow cavity and spreading lobes, their tips deciduous from the ripe 

 fruit; flesh thin and yellow; nutlets usually 3, rounded at the base, 

 gradually narrowed to the rounded apex, slightly groo\-ed on the back, 

 about 7 mm. long and 4-5 mm. wide. 



A branching shrub, with erect stems J3-4 m. high and 5-6 cm. in 

 diameter, spreading into thickets ,';and slender nearly straight branch- 



