no ROCHESTER ACADEMY OF SCIENCE. 



A shrub rarely more than i m. in height with slender stems, erect 

 branches and thin only slightly zigzag branchlets, dark orange green 

 and marked by numerous pale lenticels when they first appear, bright 

 red-brown and lustrous at the end of their first season, becoming dull 

 and darker the following year, and armed with slender slightly curved 

 dark purple shining spines from 3.5 to 4 cm. in length and pointed 

 toward the base of the branch. Flowers during the first week of June. 

 Fruit ripens at the end of September or early in October. The leaves 

 turn yellow and fall by the middle of October. 



Rochester ; known only in Seneca Park, east, John Dunbar 

 and H. T. Brozvn, June 3, 1901, JoJm Dunbar, October, 1901, C. S. 

 Sargent, October, 1902, C. C. Laney, October, 1901. 



§ PUNCTATAE. 



Fruit large, oblong, red or yellow, conspicuously punctate ; nutlets 

 usually s, prominently ridged on the back ; corymbs many-flowered ; 

 stamens 20. 



Leaves obovate-cuneiform ; anthers rose color or yellow ; 

 fruit, red or yellow on different individuals. 



I J. C. punctata. 



Crataegus punctata, Jacquin. Sargent Silva N. Am., iv. 103, t. 

 84. Common. 



The yellow-fruited form is 



Crataegus punctata, /3 aurea, Alton, Hort. Kezo. ii. 170 (not 

 Crataegus aurea, Marshall) (1789). 



Crataegus crocata, Ashe, Ann. Carnegie Mus. i. 389 (1902). 

 Genesee Valley Park, Rochester, N. Y. 



