﻿lOO BOTANICAL GAZETTE [February 



Crataegus Crus-galli pyracanthifolia Ait. Sargent, Silva 

 N, Am. 13:39. /. djy. — In this form the nutlets are also often 

 solitary and are more acute than those of the typical form. 

 Common. 



Crataegus Crus-galli capillata, n. var. — Leaves oblong- 



obovate, rounded or acute at the apex, finely serrate, thin but 

 firm in texture, lustrous on the upper surface, pale on the lower 

 surface, about 3.5'''" long, 1.5 to 2'^"' wide. Flowers small, rarely 

 more than 8-1 o"""" in diameter, in many-flowered slightly villose 

 corymbs; stamens 10; anthers pale rose color; styles usually 

 I, rarely 2. Fruit subglobose to short-oblong, green slightly 

 blotched with red ; nutlets i, rarely 2, obtuse at the ends, promi- 

 nently ridged, S or g"""" long, nearly as thick as long. 



A tree 3-4™ in height, with a trunk covered with dark rough bark, 

 spreading branches, and slender nearly straight branchlets villose when 

 they first appear, bright chestnut-brown and lustrous during their first season, 

 becoming reddish-brown the following year, and armed with slender slightly 

 curved bright chestnut-brown ultimately gray spines 3-6^"" long. Flowers 

 during the first week of June. Fruit ripens toward the end of October and 

 soon falls. 



In woods one mile east of Christiana on the Newcastle road, W. M 

 Canby, June i and October 16, 1901, May 31, 1902. A specimen in flower 

 collected by Mr. Canby in a meadow at the head of the Wissahickon Drive, 

 Germantovvn, Pennsylvania, appears to belong to this variety- 



Crataegus Canbyi Sargent, Box. Gaz. 31:3. 1901; Silva N. 

 Am. 23: 41. A 6j8. 



Stamens 20. 



Crataegus Pennypackeri, n. sp. — Leaves obovate, acute and 



often short-pointed at the apex, gradually narrowed and cuneate 

 at the entire base, finely serrate above, with straight or slightly 

 incurved gland-tipped teeth, glabrous, membranaceous until after 

 the petals fall ; at maturity subcoriaceous, dark green and 

 lustrous above, pale yellow-green below% 3.5-4'''" long, about 2"^°* 

 wide, with pale light yellow midribs and primary veins impressed 

 on the upper surface and raised and prominent below ; petioles 

 slender, grooved, winged above by the decurrent base of the 

 leaf-blades, 8-10"^™ long ; leaves on leading shoots mostly 

 rhombic, short-pointed, more or less deeply divided into broad 

 acute lateral lobes, 8-9"^"^ long, about 7^^ wide, their stout 



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