CRATAEGUS JN ROCHESTER, NEW YORK. lOI 



Crataegus formosa, n. sp. 



Nearly glabrous. Leaves oblong-ovate, acuminate, full and 

 rounded or cuneate or rarely truncate at the wide entire base, sharply 

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

 divided usually only above the middle into three or four pairs of 

 narrow acuminate spreading lobes ; more than half-grown when the 

 flowers open and then very thin, light yellow-green and slightly hairy 

 above along the midribs, paler and glabrous below ; at maturity sub- 

 coriaceous, dark dull bluish green on the upper surface, pale on the 

 lower surface, 5.5-7 cm. long, 4-6.5 cm. wide, with slender yellow 

 midribs, 4 or 5 pairs of thin prominent primary veins extending 

 obliquely to the points of the lobes, and somewhat conspicuous finely 

 reticulated veinlets ; petioles slender, usually slightly wing-margined 

 at the apex, grooved, sparingly glandular early in the season, 1.2-2 

 cm. in length. Flowers 2-2.5 cm. in diameter on long slender pedi- 

 cels, in broad usually about lo-ffowered thin-branched corymbs ; 

 bracts and bractlets oblong- obovate to linear, glandular, mostly 

 deciduous before the flowers open ; calyx-tube broadly obconic, often 

 furnished near the base with a few long white caducous hairs, the lobes 

 gradually narrowed from wide bases, small, acuminate, entire or occa- 

 sionally and irregularly glandular-serrate, reflexed after anthesis ; 

 stamens 20 ; anthers pale yellow ; styles usually 5, surrounded at the 

 base by a ring of pale tomentum. Fruit on long slender pedicels, in 

 few-fruited spreading clusters, oblong or slightly obovate, full and 

 rounded at the ends, scarlet, marked by large pale lenticels, pruinose, 

 1. 2-1.5 cm. long, about i cm. wide ; calyx prominent, sessile, with a 

 broad deep cavity and enlarged spreading entire or serrate lobes, 

 dark red on the upper side near the base, their tips often deciduous 

 from the ripe fruit ; flesh thin, yellow, dry and mealy ; nutlets 4 or 5, 

 thin, narrowed at the rounded ends, very prominently ridged on the 

 back, with a high rounded often doubly groove ridge, 8-9 mm. in 

 length. 



A bush 3-5 m. in height, with stems branching from the base, 

 often I- 1. 2 dm. in diameter, and covered with dark olive-green bark, 

 becoming dark gray-brown and scaly at the base, stout branchlets 

 dark orange-green and marked by many large pale lenticels when 

 they first appear, dull dark reddish brown or purple at the end of 

 their first season, very dark brown the following year and armed with 

 stout nearly straight red- brown shining spines usually not more than 



