152 PROCEEDINGS OF THE ACADEMY OF [March, 



2. Crataegus trahax Ashe. 



Jour. Elisha Mitchell Sci. Soc, XIX, pt. I, 27 (1903); Gruber, Proe. Berks 

 County Nat. Sci. Club, I, 21 (Crataegus in Berks County, II). 



Crataegus crus-galli Sargent, Proc. Acad. Nat. Sci. Phila., 1905, 579 (in part) 

 (not Linnaeus). 



Glabrous with the exception of the hairs on the upper side of the 

 midribs. Leaves oblong-obovate, rounded or rarely acute at the 

 broad apex, gradually narrowed to the cuneate base, and finely 

 serrate above the middle, with incurved glandular teeth ; nearly fully 

 grown when the flowers open from the 20th to the 27th of May and then 

 thin, yellow-green, sparingly villose along the upper side of the midribs, 

 with mostly persistent hairs and paler below, and at maturity thin, 

 dark yellow-green and very lustrous on the upper surface, pale yellow- 

 green on the lower surface, 4-5.5 cm. long and 2-2.5 cm. wide, with thin 

 midribs and slender more or less prominent primary veins; petioles 

 stout, slightly wing-margined nearly to the base, 6-7 mm. in length; 

 leaves on vigorous shoots usually acute or acuminate, coarsely serrate, 

 often 7-8 cm. long and 3.5-4 cm. wide, with thick midribs and promi- 

 nent primary veins. Flowers 1.3-1.8 cm. in diameter, on long slender 

 pedicels, in wide usually 10-15- but occasionally 30-flowered corymbs, 

 the much elongated lower peduncles from the axils of upper leaves; 

 calyx-tube narrowly obconic, the lobas long, slender, acuminate, 

 entire or occasionally slightly glandular near the base, reflexed after 

 anthesis; stamens 5-15, usually 10; anthers pink; styles 1 or rarely 2. 

 Fruit ripening early in October and usually remaining until November 

 on the branches, on long slender drooping pedicels, in few-fruited 

 clusters, subglobose to short-oblong, maroon or dark crimson, often 

 blotched with dark green at the apex, dull, slightly pruinose, 1-1.3 cm. 

 long and 8-13 mm. wide; calyx little enlarged, with a broad obconic 

 cavity, and erect and slightly incurved persistent lobes; flesh bitter, 

 greenish yellow; nutlet usually 1, narrowed and rounded at the apex, 

 broader and rounded at the base, slightly ridged, 6-7 mm. long and 

 4-5 mm. in diameter. 



A tree 4 or 5 m. high, with a short trunk 2-3 dm. in diameter, covered 

 with dark gray bark, numerous large horizontal ascending or drooping 

 branches forming a broad rounded head, and slender only slightly 

 zigzag branchlets light orange-brown and marked by large pale lenti- 

 cels when they first appear, becoming light reddish brown in their 

 first season and dull gray the following year, and unarmed or armed 

 with occasional stout spines 3-3.5 cm. long. 



Bluffs along Tulpehocken Creek, North Heidelberg Township, Berks 

 County; common; C. L. Gruber, (No. 105) May 27, August 2 and 



