546 



ROSACEAE 



Crataegus 



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Map 1116 

 Crataegus Gattingeri Ashe 



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Way 



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~~^0 



Map 1117 



Crataegus platycarpa Sarg. 



Map 1118 



Crataegus rugosa Ashe 



16. Crataegus Gattingeri Ashe. (Deam. Trees of Indiana, ed. 2. pi. 93. 

 1932.) (Crataegus priva Ashe, Crataegus vicinalis Beadle, and Crataegus 

 tili pes of Eggleston, not of Ashe.) Map 1116. Leaves ovate or deltoid, 

 variable in size, mostly 2.5-5 cm long, and 1.5-4 cm wide, acute or acuminate 

 at the apex, abruptly narrowed, rounded or on sterile shoots, truncate or 

 cordate at the base, sharply serrate nearly to the base, usually with 2-4 

 pairs of triangular lobes, the terminal one often wedge-shaped and con- 

 spicuously elongated, thin but firm, glabrous, blue green; petioles very 

 slender, half to two thirds the length of the blades; flowers 14-16 mm in 

 diameter, in mostly 3-7-flowered, nearly simple, glabrous corymbs; sta- 

 mens about 20; anthers pink or rarely white; fruit pyriform, oblong, or 

 nearly globose, but usually attenuate at the base, 7-10 mm thick, 8-12 

 mm long, with narrow, slightly elevated calyx, dull crimson, slightly 

 pruinose, with thin flesh, remaining firm or hard ; nutlets usually 4-5. 



A stout shrub or sometimes a small tree up to 4-5 m high, with dark 

 gray, slightly scaly bark, crooked, ascending or spreading branches, and 

 slender, flexuous, glabrous branchlets, armed with numerous slender or 

 stout thorns. 



Scattered in southern Indiana, growing in thickets and on borders of 

 woods, usually in well drained soil along streams. 



W. Va. to e. Mo., southw. to Ga. and Ark. 



16a. Crataegus Gattingeri var. rigida Palmer, var. nov. 1 (Crataegus 

 Gattingeri of Eggleston (Deam. Trees of Indiana, ed. 2: 219-22. pi. 94. 

 1932), not of Ashe.) This variety differs from the type in the stouter, 

 rigid, flexuous branchlets, and in the short, stout thorns, 1-2 cm long. 



Known in Indiana only from Perry County. 



Specimens examined : Indiana : Deam no. 27143, a quarter of a mile 

 north of Cannelton, Perry County (type), April 24 and July 22, 1919. 

 Type in herbarium of the Arnold Arboretum. Kentucky: Palmer no. 17716, 



1 A typo differt ramulis crassis rigidis spinis crassis 1-2 cm longis. 



