248 TREES AND SHRUBS. 



and veins ; the petioles and branchlets of the year are densely pubescent, otherwise as in the type. This form may be distin- 

 guished as — 



, April 17 and July 31, 1910, April 2, 1911 (No. 19, type), March 27, April 17 and 



Another species of Prunus may be described as — 

 Prunus (Prunophora) fultonensis, n. sp. 



Leaves ovate to oval or rarely slightly obovate, acuminate, rounded and often unsymmetrical at the base, coarsely often doubly 

 serrate with straight apiculate teeth, thin dark green and sparingly pubescent above, paler and villose-pubescent below especially 

 on the slender midribs and primary veins, from 8 to 11 centimetres long and from 3.5 to 5.5 centimetres wide ; petioles slender, 

 pubescent, eglandular, or glandular near the apex. Flowers from 1.5 to 1.7 centimetres in diameter, on slender pedicels slightly 

 hairy toward the apex, and from 1.2 to 1.5 centimetres in length, in mostly three- or four-flowered umbels ; calyx-tube narrowly 

 obconic, puberulous, the lobes narrowed and rounded at the apex, and coated with pale hairs more thickly on the inner than on 

 the outer surface, reflexed after anthesis ; petals obovate, rounded and often crenulate at the apex, abruptly narrowed below into 

 short claws ; stamens from twenty to twenty-five, about as long as the style ; anthers yellow. Fruit on stout nearly glabrous 

 pedicels, globose, dark bluish purple, from 1.5 to 1.7 centimetres in diameter, with a thick skin and thin flesh ; stone much com- 

 pressed, rounded at the base, acute at the apex, unsymmetrical on the two sides, rounded and obscurely ridged on the dorsal 

 edge, straighter and only slightly grooved on the ventral edge, 9 or 10 millimetres long and broad. 



A tree, 7 or 8 metres high, with a trunk covered with dark deeply furrowed scaly bark, small branches and slender chestnut- 

 brown glabrous branchlets marked by numerous pale lenticels, becoming dark gray-brown in their second year. Flowers appear 

 before the leaves about the 20th of March. Fruit ripens in June. 



Arkansas : woods near Fulton, Hempstead County, /. H. Kellogg, March 22, June 22 and August 29, 1910 (No. 240, type). 



This tree, like the other species in this group, does not produce suckers, but differs from them in its thin leaves, in the bluish 

 purple, not red, much smaller fruits, and in the shape of the small much compressed stones. C. S. S. 



EXPLANATION OF THE PLATE. 

 Plate CXCII. Prunus Palmeri. 



1. A flowering branch, natural size. 



2. Vertical section of a flower deprived of its petals, enlarged. 



3. A calyx-lobe, enlarged. 



4. A petal, enlarged. 



5. A fruiting branch, natural size. 



6. A stone, natural size. 



7. A stone, dorsal edge, natural size 



