1905.] NATURAL SCIENCES OF PHILADELPHIA. 609 



brown during their first winter, becoming ashy-gray in their second or 

 third years, and armed with stout straight or slightly curved bright 

 chestnut-brown shining spines 2-3^ cm. in length. 



Delaware county: Common; B. H. Smith (No. 199, type, teste Smith, 

 Nos. 200, 206, 207). Bucks county: Hills near Sellersville, C. D. 

 Fretz (No. 13), August, 1899, May, 1901, (No. 100) September, 1899, 

 (No. 101) May and September, 1901, (No. 130) May and September, 



1900, (No. 142) May and September, 1901, (No. 143) May and Septem- 

 ber, 1901; Fretz and Sargent (No. 105), September, 1899. Berks 

 county: Banks of Sacony creek, near Kutztown, C. L. Gruber (No. 17), 



1901, May and August, 1903. Monroe county: Between Tannersville 

 and Stroudsburg, W. M. Canby, May and August, 1903, without flowers, 

 and doubtfully referred to this species, 



2. Crataegus rufipes Ashe. 



Jour. Elisha Mitchell Sci. Soc, Vol. XX, p. 51, 1904. 

 Leaves oblong-ovate, long-pointed and acuminate at the apex, 

 rounded, cuneate or truncate at the broad base, finely doubly serrate, 

 with slender straight acuminate teeth, and deeply divided into 4-6 

 pairs of lateral spreading and often recurved acuminate lobes, nearly 

 fully grown when the flowers open from the 15th to the 20th of May 

 and then roughened above by short pale hairs and glabrous below, and 

 at maturity membranaceous, yellow-green, lustrous and slightly scab- 

 rate on the upper and pale on the lower surface, 4.5-6.5 cm. long and 

 4-5 cm. wide, with thin midribs and slender veins arching obliquely to 

 the points of the lobes; petioles slender, sparingly glandular, with 

 minute scattered glands, 1.5-2 cm. in length ; leaves on vigorous shoots 

 mostly cuneate at the base, very coarsely serrate, more deeply lobed, 

 occasionally 8-9 cm. long and 6-7 cm. wide, with broadly winged peti- 

 oles and large foliaceous lunate stipules. Flowers 1.3-1.5 cm. in diam- 

 eter, on elongated slender glabrous pedicels, in wide many-flowered 

 corymbs, with linear glandular bracts and bractlets mostly deciduous 

 before the flowers open; calyx narrowly obconic, the lobes gradually 

 narrowed from broad bases into long slender acuminate tips, irregularly 

 glandular-serrate, reflexed after anthesis; stamens 5-8; anthers dark 

 rose color; styles 2 or 3, surrounded at the base by a narrow ring of 

 pale tomentum. Fruit ripening the middle of September on long slen- 

 der drooping pedicels, in wide many-fruited clusters, narrow-pyriform 

 until nearly ripe, becoming oblong to oval, gradually narrowed and 

 rounded at the base, bright scarlet mottled with green or russet, 1-1.2 

 cm. long and 6-8 mm. wide ; calyx much enlarged, with a broad shallow 

 cavity, and elongated reflexed closely appressed usually persistent lobes ; 

 40 



