1905.] NATURAL SCIENCES OF PHILADELPHIA. 599 



town, C. L. Gruher (No. 160, type!), 1902, May, August and October, 



1903. 



15. Crataegus insueta n. sp. 



Glabrous. Leaves oblong-ovate, acuminate, full and rounded at the 

 entire base, sharply doubly serrate above, with straight glandular teeth 

 and slightly divided into 2 or 3 pairs of short acute lateral lobes, faintly 

 tinged with red or bronze color when they unfold, nearly half -grown 

 when the flowers open from the 12th to the 20th of May and then dark 

 yellow-green and very lustrous above and paler and dull below, and at 

 maturity subcoriaceous, very dark blue-green on the upper and paler 

 and yellow-green on the lower surface, 4-5 cm. long, 2.5-3 cm. wide, 

 with slender midribs and 4 or 5 pairs of inconspicuous primary veins ; 

 petioles slender, grooved on the upper side, glandular, with numerous 

 scattered glands, 1.5-2 cm. in length; stipules linear, acuminate, 

 glandular or furnished with occasional minute glands, bright pink hke 

 the conspicuous accrescent inner bud-scales ; leaves on vigorous shoots 

 often cordate at the base, sometimes deeply divided into broad lateral 

 lobes, 5-6 cm. long and 4-5 cm. wide, with rather thicker petioles 1.5-2 

 cm. in length. Flowers 1.4-1.6 cm. in diameter, on long slender pedi- 

 cels, in 5-8 usually 5-flowered corymbs, with linear caducous bracts and 

 bractlets, the lower peduncles 1-flowered from the axils of upper leaves; 

 calyx-tube narrowly obconic, the lobes narrow, elongated, acuminate, 

 entire or sparingly glandular-serrate above the middle, strongly reflexed 

 after anthesis; stamens 20; anthers white faintly tinged with yellow; 

 styles 5. Fruit ripening late in October, pyriform, dull green tinged 

 irregularly with red, becoming dull red in drying, 1-1.2 cm. long, 

 9-10 mm. broad above the middle, gradually narrowed to the base; 

 calyx little enlarged, without a tube, with a broad shallow cavity, and 

 small reflexed and closely appressed lobes gradually narrowed from 

 broad bases ; flesh thin, yellowish-green, dry and hard ; nutlets 5, thin, 

 tapering to the acute ends, irregularly ridged on the back, usually with 

 a broadly grooved ridge, about 6 mm. long and 4-5 mm. wide. 



A bushy tree, with a short stout trunk about 2 cm. in diameter, stout 

 spreading ascending branches forming a broad shapely head, and slen- 

 der only slightly zigzag branchlets marked by numerous small dark 

 lenticels, orange-green and slightly tinged with red when they first 

 appear, bright chestnut-l^rown and very lustrous during their first 

 season and darker the following year, and armed with many stout 

 nearly straight spines 3-4 cm. in length. 



A single tree on the lawn near the lake in West Fairmount Park, 

 Philadelphia, of unknown origin but probably planted, certainly an 



