CRATAEGUS IN ROCHESTER, NEW YORK. II9 



Crataegus Streeterae, n. sp. 



Leaves ovate, acuminate and often long-pointed at the apex, 

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

 and often doubly serrate above, with long slender spreading gland- 

 tipped teeth, and slightly divided into 3 or 4 pairs of small acuminate 

 lobes; more than half grown when the flowers open and then very thin, 

 light yellow-green and roughened on the upper surface by short white 

 hairs; at maturity thin, conspicuously wrinkled, dark green and scab- 

 rate above, pale and glaucous below, 3.5-5 cm. long, 3-4.5 cm. wide, 

 with very thin midribs and primary veins; petioles slender, slightly 

 grooved, pubescent when they first appear, soon glabrous, 2.5-3 <^rn- 

 in length; on vigorous leading shoots, leaves long-pointed, cordate at 

 the base, often 6 cm. long and broad, their petioles short and stout, 

 conspicuously glandular throughout the season. Flowers 1.2- 1.4 cm. 

 in diameter on long very slender puberulous pedicels, in compact 

 many-flowered thin-branched compound corymbs; calyx-tube narrowly 

 obconic, the lobes slender, acuminate, entire, glabrous on the outer, 

 slightly villose on the inner surface, reflexed after anthesis; stamens 

 7-10; anthers small, rose color; styles 3 or 4, surrounded at the base 

 by narrow ring of pale tomentum. Fruit on slender pedicels, in 

 drooping many-fruited clusters, oblong, full and rounded at the ends, 

 scarlet, lustrous, marked by many small pale dots, about i cm. long 

 and 8 cm. wide; calyx sessile, with a broad shallow cavity, and only 

 slightly enlarged reflexed and closely appressed lobes, their tips often 

 deciduous from the ripe fruit; flesh thick, yellow, dry and mealy; 

 nutlets 3 or 4, wide, full and rounded at the ends, conspicuously 

 ridged on the back, with a broad high ridge, 6.5-7 mn"!- long. 



A dense shrub with numerous stems covered with smooth, dull 

 gray bark, the lower horizontal, the upper ascending, and slender 

 nearly straight branchlets, tinged with red when they first appear, dull 

 gray or reddish brown and marked by numerous small pale lenticels 

 at the end of their first season, becoming ashy gray the following year, 

 and armed with few slender, slightly curved, dark red shining spines 

 3-4 cm. in length. Flowers about the 20th of May. Fruit ripens 

 toward the end of September or the first of October and then remains 

 on the branches for several weeks. 



Rochester; Oak H'\\\,/o/m Dunbar, May, September and October, 

 1901, along the river banks, Genesee Valley Park, M. S. Baxier ^nd 

 John Dunbar, August, 1902. 



This species is named in memory of Mary Elizabeth Streeter, to 



