252 PENNYP ACKER— ON THE BEACH PLUM 



Flower Buds more precocious in early spring, chestnut 

 brown, rather abundantly scattered along the twigs, 

 frequently compounded with a single leaf bud. 

 Leaf Buds smaller, more pointed, dark gray and terminal, 

 bursting after the bush is in full bloom. 



Leaf Scar Crescent shaped, with three small inconspicuous fibro- 

 vascular bundle scars. 



Leaf Ovate, alternate, 3.5 cms. wide 6.8 cms. long, petiole 



LO cms. long and finely pubescent; acute finely and sharply 

 serrate with small dark brown glandular tipped teeth; 

 rounded and biglandular at the base with two dark brown 

 stalked glands; slightly pubescent along the midrib, very 

 slightly along the primary veins on the upper surface, 

 pubescent along the midrib and in the axils of the primary 

 veins on the lower surface; stipules lobed, glandular- 

 serrate, and early deciduous. At maturity thick and firm, 

 dark green above, paler below. 



Flower Appearing from May 1 to 15 slightly before the leaves, 15- 



20 mm. broad on pubescent pedicels 15 mm. in length, 

 usually in 3 or 4 flowered umbels, sepals ovate, rounded 

 at the apex, pinkish along the margins, pubescent; calyx 

 tube campanulate 2 mm. deep, glandular on the inner sur- 

 face, pubescent on the outer; petals white turning pinkish 

 on fading, ovate, rounded at the apex, contracted at 

 the base into short claws; stamens 35, from 8 to 12 mm. 

 long, glabrous, turning pink on fading, inserted on the 

 calyx tube; style 15 mm. long, glabrous with truncate 

 stigma; carpels simple, ellipsoid, glabrous. 



Fruit Ripening August 5 to 25 of a deep blue black color, spheri- 



cal or slightly flattened at the blossom end 17x16 mm. 

 covered with a light waxen bloom, flecked with numerous 

 light colored spots; weight 3.0 to 3.9 grams, flesh of watery 

 green color; pulp free from the stone, sweet and pleasant, 

 abundance of tannin in a layer beneath the skin; stone 

 oval, compressed, reddish in color, 12.5 mm. long and 

 11.0x7.3 mm. thick, weight .54 gram, acutely ridged on 

 the ventral, shghtly grooved on the dorsal suture. 



