656 PROCEEDINGS OP THE ACADEMY OF [Sept., 



1. Crataegus tomentosa Linnaeus. 



Spec, 476 (1753). Sargent, Silva N. Am., IV, 101, t. 183; Man., 492, 



f. 406. 

 Cratcegus cerea Gruber, Berks County Nat. Sci. Club, I, 3 (Crataegus in Berks 



County, II) (without description) (1903). 



Bucks county: Near Sellersville, C. D. Fretz (Nos. 21 and 167), June 

 and September, 1899, 1901, 1903; Durham, Fretz and Sargent, 1902. 

 Berks coimty: Near Kutztown, C. L. Gruber (No. 37), 1901, June and 

 October, 1903. Northampton county: Chestnut Hill, Easton, T. C. 

 Porter, May, 1889. 



Gruber's No. 127, a small tree near Kutztown, seems to differ from 

 Cratcegus tomentosa only in its short-oblong to subglobose (not pyriform) 

 bright red-orange fruit, and requires further study. 



2, Crataegus structilis Ashe. 



Jour. Elisha Mitchell Sci. Soc, XIX, 12 (1903). -Gruber, Proc. Berks 



County Nat. Sci. Club, I, 3 (Crataegus in Berks County, II). 



Leaves oblong-ovate to oval or obovate, acuminate, gradually nar- 

 rowed to the slender concave-cuneate entire base, coarsely doubly 

 serrate above, with straight glandular teeth, and slightly divided above 

 the middle into numerous short acuminate lobes, nearly fully grown 

 when the flowers open during the first week of June and then mem- 

 branaceous, yellow-green and covered above by short soft white hairs 

 most abundant on the midribs and veins, and pale and hoary-pubescent 

 below, and at maturity thin but firm in texture, dark green and glab- 

 rous or nearly glabrous on the upper and pale and puberulous on the 

 slender midribs and primary veins l^elow, 7-8 cm. long and 4.5-5 cm. 

 wide; petioles stout; deeply grooved on the upper side, broadly wing- 

 margined to below the middle, hoary-tomentose while young, puberu- 

 lous later in the season, 1-1.5 cm. in length. Flowers 1.4-1.8 cm. in 

 diameter, on stout hoary-tomentose pedicels, in wide compact many- 

 flowered tomentose corymbs, with linear acuminate glandular bracts 

 and bractlets fading brown; calyx-tube broadly obconic, hoary-tomen- 

 tose, the lobes narrow, acuminate, slightly serrate usually only near the 

 middle, puberulous, reflexed after anthesis; stamens 20; anthers pale 

 yellow; styles 2, surrounded at the l^ase by a narrow ring of white 

 tomentum. Fruit ripening about the 1st of October, and mostly per- 

 sistent until after the leaves have fallen, on stout erect puberulous 

 pedicels, in wide many-fruited erect or spreading clusters, oblong to 

 obovate, narrowed at the ends, orange-scarlet, lustrous, 8-10 mm. long, 

 6-7 mm. wide; calyx prominent, with a long groove, a deep narrow 

 cavity, and spreading appressed pubescent lobes mostly deciduous 

 from the ripe fruit; flesh thick, orange color, sweet and succulent; nut- 



