586 PROCEEDINGS OF THE ACADEMY OF [Sept., 



1902, May and August, 1904. Also from southern Vermont to Illinois 

 and Missouri and southern Virginia. 



In Mr. Smith's specimens the anthers are lighter colored than in the 

 Berks county and New England plants. The pedicels of the fruit of 

 all the Pennsylvania specimens are much shorter and stouter than those 

 of the tree figm-ed in The Silva of North America and growing in the 

 Arnold Arboretum, and the fruit is smaller. 

 2. Crataegus austera n. sp. 



Leaves ovate, acute or acuminate, full and rounded or broadly or 

 narrowly concave-cuneate at the base, coarsely doubly serrate, with 

 straight glandular teeth, and divided above the middle into three or 

 four pairs of narrow acuminate lateral lobes; when they unfold deep 

 vinous red and glabrous with the exception of a few scattered caducous 

 hairs above, almost fully grown when the flowers open about the 20th 

 of May, and at maturity thin but firm in texture, dark blue-green on 

 the upper, paler and yellowish-green on the lower surface, 4-6 cm. long 

 and 3-4.5 cm. wide, or on vigorous shoots sometimes nearly as broad as 

 long; petioles very slender, grooved on the upper side, glandular toward 

 the apex, with occasional minute glands and 2-3 cm. long; stipules 

 Linear, glandular, deep red, caducous. Flowers 1.8-2 cm. in diameter, 

 on slender elongated pedicels, in compact glabrous mostly 6- or 7- 

 fiowered corymbs, with oblanceolate glandular deep red conspicuous 

 caducous bracts and bractlets; calyx-tube broadly obconic, the lobes 

 slender, entire or sparingly dentate above the middle; stamens 20; 

 anthers large, red; styles 3 to 5, surrounded at the base by a broad 

 ring of pale tomentum. Fruit ripening very late and remaining hard, 

 on long slender pedicels, in few-fruited clusters, subglobose, dull green 

 or ultimately reddish, 1-1.2 cm. in diameter; calyx enlarged and promi- 

 nent, with a broad deep cavity and erect or spreading mostly persistent 

 lobes ; flesh very thin, hard and dry, closely adhering to the nutlets ; 

 nutlets dark reddish-brown, full and rounded at the base, gradually 

 narrowed to the acute apex, broadly ridged on the back, with a grooved 

 ridge, nearly as long as the fruit and about 6 mm. wide. 



A. shrub 2.5-3 m. high with ascending stems, and slender slightly 

 zigzag branchlets marked by small scattered pale lenticels, dull green 

 to purplish when they first appear, rather bright reddish-brown during 

 their first summer, becoming purplish during the following winter and 

 dull gray-brown in their second year, and armed with numerous very 

 slender nearly straight purplish spines 4-6 cm. in length. 



Bucks county: C. D. Fretz, near Sellersville (No. 102), May and Sep- 

 tember, 1899; Hilltown (No. 124), May and September, 1900; Deep 



