ROSACEAE 197 



FRVNIJS— continued 



(ii) Fruit with groove or furrow (Plum Section). 



P. Amygdaliis {Aniygdahis communis). Almond. 30. March. D. Branchlets 

 hairless; three buds in each l.-axil. Ls. folded in bud, lane, 5, toothed, 

 hairless, stalk with glands. Fls. 2, pink or white, solitary or in pairs, 

 appearing before Is. Fruit 2, egg-shaped, compressed, covered with 

 velvety down. South Europe. (Fig. 92 d.) 



P. Armeniaca. Apricot. 30. April. D. Bark reddish; branchlets brown. 

 Ls. rolled in bud, broadly ov. or circular, 4, pointed, round-toothed. 

 Fls. I, white or pinkish, solitary, short-stalked. Fruit i^, round, yellow 

 tinged with red. North China. (Fig. 92 k.) 



P. cerasifera. Cherry Plum, Myrobolan. 30. March. D. Branches slender, 

 sometimes spiny, hairless. Ls. rolled in bud, ov., 3, round-toothed, 

 hairless, or nearly so. Fls. i, white, solitary or in twos or threes. Fruit i, 

 red. Caucasus. (Fig. 92 e.) 



Variety Pissardii. Ls. purple. Fls. pink. Fruit purple. 



P. Davidiana. 30. March. D. Like P. Amygdaliis, but sepals hairless and 

 fruit I, round, yellowish. China. (Fig. 92 F.) 



P. domestica {P. communis). Plum. 20. April. D. Ls. rolled in bud, ov., 3, 

 evenly round-toothed, downy below. Fls. i, white, short-stalked, solitary 

 or in pairs. Fruit i|, egg-shaped, black with blue bloom. Origin un- 

 certain (occasionally found wild in Britain). (Fig. 93 b.) 



P. insititia. Bullace. 20. April. D. Branches sometimes spiny; young 



branchlets downy. Ls. ov., 3, coarsely toothed, net-veined. Fls. i, white. 



Fruit 1 1, round, often white or yellow (Bean). Europe, Orient. (Fig. 92 g.) 



Damson, Mirabella, and Greengage are crosses between this and 



P. communis. 



P. nana{Amygdalus nana). Dwarf Russian Almond. 3. April. D. Branchlets 

 hairless; three buds in each l.-axil. Ls. rolled in bud, lane, 3^^, sharply 

 toothed, hairless. Fls. |, rosy red, stalkless. Fruit i, dry, covered with 

 velvety down, egg-shaped, compressed. South Russia. (Fig. 92 c.) 



P. Persica {Amygdalus Persica). Feach. 20. April. D. Branchlets hairless; 

 three buds in each l.-axil; buds downy, Ls. rolled in bud, lane, 6, long- 

 pointed, finely toothed, hairless. Fls. i|, pink, short-stalked, solitary. 

 Fruit 3, velvety, yellow with red. China. (Fig. 92 h.) 



White and crimson, single and double-flowered forms in cultivation. 



P. spinosa. Sloe, Blackthorn. 15. April. D. Branchlets black, spiny. Ls. 

 ov,, lane, 1 1, sharply toothed. Fls, |, white, solitary or in pairs, some- 

 times appearing before Is. Fruit h, round, blue to black, erect. Europe 

 (including Britain), North Asia. (Fig. 93 A.) 

 Y a.nety flore pleno. Fls. double. 



P. triloba {Amygdalus Lindleyi). 15. March-April. D. Three buds in each 

 l.-axil. Ls. broadly ov., long-pointed, often 3-lobed at apex, coarsely 

 and doubly toothed, slightly hairy below. Fls. i, pinkish white, solitary 

 or in pairs. Fruit |, red, round, hairy. China. (Fig, 93 c.) 



