PRUNUS 



PRUNUS 



1457 



hairy when voung, but becoming glabrous. China. 

 l.H. 8::i08. F.'S. 15:1.'j:!2. R.H. 1862:91; 1884:;i'JG. Gn.21, 

 p. 273; 28:512; 55, p. 374. Gng. 5:105; 0:290; 8:190.-A 

 most desirable bush, hardy in central New York and 

 Ontario. It is sometimes grown as a standard by being 

 worked on Plum, but it is then short-lived. Both this 

 and P. Japonica are commonly worked on Plum, but 

 better results are to be expected from own-rooted plants 

 (got by layering or root-grafting). 



Var. P6tzoldi (P. Petzoldi, Koch. P. virgdta, Hort.). 

 Branchlets and adult Ivs. glabrous, the Ivs. ovate or 

 elliptic: fls. smaller, rose-color. China. 



40. orient^lis, Koehne (Amygdalus orientHUs, Mill. 

 A. argeniea, Lam.). Shrub, 3-8 ft. high: Ivs. small, 

 nearly or quite sessile, oval, obloug or narrow obovate, 

 nearly obtuse or short -pointed, entire: lis. solitary, 

 nearlj' 1 in. across, light rose-color, with or just pre- 

 ceding the Ivs.: fr. ovate or oblong, thinly pubescent 

 but becoming glabrous. Asia Minor, etc. L. B.C. 12:1137. 



AA. Plant a tree or tree-like. 

 B. Fr. hard, splitting at maturity. 



41. Amygdalus, Stokes {Amygdalus communis, Linn.). 

 Almond. Figs. 03, 04. Peach-like tree, 10-25 ft. tall, 

 with gray bark: Ivs. lanceolate, firm and shining, very 

 closely serrate: fls. large (1 in. and more across), soli- 

 tary and appearing before the Ivs., pink, showy: fr. a 

 large compressed drupe with hard flesh, splitting open 

 at maturity and liberating the pitted stone (or Almond). 

 Asia. Gn. 50:1088 (var. macrocarpa); 54:1183. — Grown 

 as an ornamental tree, but chiefly for the nuts (or pits 

 of the fruit). There are double-fld., white-fld., and 

 variegated-lvd. forms; also weeping forms. YeiV. macro- 

 carpa is an early-blooming erect-growing form with fls. 

 2 in. across and very showy. See Almond. 



camelHce flora, with its subvariety plena, the former 

 with very large carmine fls. and the latter with double 

 fls. There are forms (var. versicolor) with different 

 colors of fls. on different branches of the same tree. 



2001. Prunus ilicifolia (X K). No. 35. 



BB. Fr. soft, not opening or splitting. 



42. P^rsica, Sieb. & Zucc. (Amygdalus P4rsica, Linn. 

 PSrsica vnlgclris. Mill.). Peach. Figs. 1661-6. 

 Much like the Almond in botanical characters and by 

 some thought to be derived from that plant, but now 

 generally agreed to be an original species and to be 

 native to China: Ivs. broad-lanceolate or oblong-lanceo- 

 late, coarsely serrate: fls. solitary, pink, appearing be- 

 fore the Ivs. : fr. soft, pubescent at maturity, the stone 

 deep-pitted and very hard. Widely cultivated, especially 

 in North America, where it thrives under a great variety 

 of conditions. — There are two well-marked forms, the 

 clingstones or pavies (Persica vulgaris of Risso), and 

 the freestones (Persica domestica of Risso). There are 

 man}' ornamental forms of the Peach tree: double-fld. 

 Fig. 1665 (F.S. 10:969; 13:1299, 1.300. R.H. 1852:221); 

 white-fld., dark-fld., etc.; purple-lvd.; variegated-lvd.; 

 dwarfs. One of the best of these fancy forms is var. 



2002. Dwart almonds (XK). 



Prunus nana at left; P. Japonica in middle; P. triloba 



at right. Nos. 37-39. 



Var. laevis, Gray (Amygdalus Pirsica necturlna, 

 Ait. Persica llevis, DC. Prunus Persica, var. nectu- 

 rlna, Maxim.). Nectarine. Fig. 1404. Fruit smooth, 

 usually smaller: Ivs. usually more strongly serrate. 

 The Nectarine has sprung from the Peach, both through 

 seed and bud-variation. There are two types, as in the 

 Peach: clingstones or brugnons {Persica kevis of 

 Risso), and freestones (Persica violacea of Risso). 

 The Nectarine is not generally cultivated in this coun- 

 try, although it is popular in California. 



Var. platycdrpa, Bailey (Persica platycdrpa, De- 

 caisne). Flat Peach, or Peen-to. F'ig. 1660. Much 

 flattened endwise, and scarcely thicker than the pit. 

 Prom China. R.H. 1870-1:111. Trans. Lond. Hort. Soc. 

 4:512. — Grown in the southern states, where it has 

 given rise to various globular Peaches. The Peen-to 

 originated in 1869, with P. J. Berckmans, Augusta, Ga., 

 from seeds sent from Australia, where it was probably 

 introduced from China. 



43. Davidid.na, Franch. (Persica Davididna, Carr. 

 Prunus Persica, var. Davididna, Dipp.). Fig. 2004. 

 Slender, willow-like tree: Ivs. narrower and smaller 

 than those of the Peach, tapering from near the base 

 into very long points, very sharp-serrate, light green, 

 willow -like: fls. appearing very early, 1 in. or more 

 across, white or blush, solitary: fr. nearly globular, the 

 suture prominent, about 1 in. in diameter, pubescent, 

 grayish or yellowish: stone small and nearly spherical, 

 ruminated, free from the 

 whitish dry flesh. China. 

 R.H. 1872, p. 75. G.F. 10: 

 503. Gt. 44:1412. G.C. III. 

 11: 529. Gn. 50, p. 165.- 

 Somewhat grown as an orna- 

 mental subject. Hardy in 

 New York, but the flower- 

 buds are usually killed. It 

 blooms very early, much in 

 advance of Peaches. By 

 some thought to be a form 

 of the Peach species, but as 

 knovsTi in this country it 

 seems to have specific char- 



2003. Prunus Japonicai 

 Natural size. No. 38. 



acters. 



44. Simbmi,Ceirr.{Pdrsic,i 

 Simdnii, Decaisne). Simon 

 or Apkicot Plum. Fig. 2U05. 



tigiate tree : Ivs. rather long-oblanceolate or lance-ob- 

 ovate, rather thick and heavy, dull, very veiny below, 

 finely but unevenly obtuse - serrate, conduplicate or 

 trough-shaped in habit : fls. nearly white, on short 



A straight-growing, fas- 



