2836 



PRUNUS 



PRUNUS 



DD. Fl.-cluster a small umbel, very short-pedunculate. 



48. pilosiuscula, Koehne. Shrub, or tree to 40 ft., 

 and a trunk to 16 in. diam.: Ivs. obovate or obovate- 

 oblong, some specimens broader, base mostly rounded or 

 emarginate, more or less acuminate, very strongly and 

 often somewhat incisely doubly or simply serrate, the 

 teeth acuminate and glandless or very nearly so, mostly 

 glabrous above and hairy or glabrous beneath; petiole 

 J^-J^in. long, slightly hairy or glabrous, with 2 glands 

 at apex or on the base of the blade: fls. with or just 

 preceding the Ivs., pink, solitary or mostly 2 or 3 

 together, the bracts oblong to rotundate and glandular- 

 serrate, persistent, the peduncle very short to J^in. 

 long, tne pedicels J^ to more than 1 in. across; calyx- 

 tube glabrous; lobes triangular, obtuse or acute, gla- 

 brous or at the apex 

 sparsely ciliate; petals p=-~- 

 about J^jin. long, oval: fr. 

 oblong, red. Cent, and W. 

 China. Var . media, Koehne, 

 differs in having hairs on 

 the midrib and nerves of 

 the If. underneath. 



ODD. Fl.-dusters sessile, um- 

 bellate, not branching. 



E. Teeth of Ivs. very short or 

 small: native bird 

 cherries, bearing very 

 small white fls. on 

 slender pedicels in 

 naked small lateral 

 umbels, and a profu- 

 sion of very small red 

 or black frs. 



49. pennsylvanica, Linn. 

 (Cerasus pennsylvanica, 

 Loisel. C. borealis, Michx. 

 Primus borealis, Poir. P. 

 persicifolia, Desf. Cerasus 

 persicifolia, Loisel.). COM- 

 MON WILD BIRD or PIN 

 CHERRY. Fig. 3235. Shal- 

 low-rooted tree with slen- 

 der red-barked branches, 

 25-40 ft. high and some- 

 tunes \Y<i ft. in diam. of 

 trunk: Ivs. oblong-lanceo- 

 late-acuminate, light green 

 and rather thin, closely 

 sharp - serrate : fls . small, 

 white, slender-stalked, ap- 

 pearing with the Ivs., in 

 2's or 3's: fr. the size of a 

 pea, light cherry-red, the 

 flesh thin and sour and 



3236. Weeping dwarf cherry 

 stock. One of the best of the 

 and known under several 



fruticosa var. pendula. (No. 52.) 



somewhat puckery; stone 

 oblong. Sandy and rocky 

 lands, Newfoundland to 

 Brit. Col., and south in the 

 mountains to Colo, and N. C. S.S. 4:156. B.M. 8486. 

 Where the tree grows naturally, it often sprouts 

 inveterately and becomes a nuisance. When bruised, 

 the wood has a strong peach-like odor. It is an inter- 

 esting ornamental tree, however. In poor soils, it is 

 often little more than a bush. On large trunks the bark 

 tends to peel in transverse strips. Var. saximontana, 

 Rehd., of the Rocky Mt. region, is shrubby in growth, 

 with smaller and broader pale green Ivs. and few-fld. 

 sessile umbels. 



50. emarginata, Walp. (Cerasus emarginata, Douglas) . 

 Shrub, 3-10 ft. high, sometimes a small tree, forming 

 dense thickets: Ivs. oblong-ovate or oblanceolate, 

 mostly obtuse, closely serrate, often somewhat pubes- 

 cent beneath: fls. tinged green, appearing with the Ivs. 



in 6-12-ft. glabrous or pubescent corymbs: fr. larger 

 than that of P. pennsylvanica, almost black when ripe, 

 the flesh thin and bitter; stone ovoid. Mountains, 

 Brit. Col. to Calif. S.S. 4:157. Sometimes offered 

 as an ornamental tree. 



51. m611is, Walp. (P. emarginata var. mollis, Brew. 

 Cerasus mollis, Douglas). Small tree, reaching 30-50 

 ft., straight and graceful, with reddish cherry-like bark: 

 young growth soft-pubescent: Ivs. 1-3 in. long, obo- 

 vate to oblong or oblanceolate, mostly acute, serrate, 

 nearly or quite glabrous above, pubescent underneath, 

 the stipules narrow and laciniate: fls. white, in 5-10- 

 fld. clusters; calyx-lobes oblong, obtuse, and entire, 

 becoming reflexed, much shorter than the tube; petals 

 obovate, about 2 lines (%m..) long: fr. 3^in. or less long, 



bright red, very bitter; 

 =TJ stone wrinkled, keeled on 



one edge. Woods, Brit. 



Co1 - to Calif. 



EE. Teeth of Ivs. mostly 

 prominent (exception 

 in No. 52). 



52. fruticosa, Pall. (P. 

 Cerasus var. pumila, Linn., 

 not P. pumila, Linn., P. 

 Chamsecerasus, Jacq. P. 

 pumila, Hort. P. inter- 

 media, Poir. Cerasus 

 Chamsecerasus, Loisel. C. 

 humilis, Hort. Cerasus 

 sibirica, Hort.). DWARF 

 CHERRY, or GROUXD 

 CHERRY, of Eu. Spread- 

 ing bush, 2-4 ft. high, with 

 slender glabrous branch- 

 lets: Ivs. varying from obo- 

 vate to oblanceolate and 

 lanceolate, the apex acumi- 

 nate or sometimes almost 

 obtuse, closely serrulate, 

 thickish, shining above, the 

 petiole short: fls. white, in 

 nearly or quite sessile 

 umbels: fr. small, globular, 

 purple-red, very sour. 

 Highlands and mountains 

 of Germany, Austria-Hun- 

 gary, and S. Russia. P. 

 eminens, Beck, is a hybrid 

 of P. fruticosa and P. 

 Cerasus. 



Var. pendula, Dipp. 

 (Primus and Cerasus japd- 

 nica pendula, Hort.), is a 

 most ornamental form with 

 drooping branches, excel- 

 lent for top-working on 

 standard stocks (Fig. 3236). 

 G.W. 10, p. 511. This is 

 sometimes confounded with P. semperflorens (No. 53), 

 but is distinguished at once by its foliage, its early 

 blooming, its fls. in clusters, and its dwarf habit. This 

 is the form of P. fruticosa chiefly known in this country. 

 A similar pendulous form, but with larger and more 

 crenate-serrate Ivs., is known as P. reflexa, Hort.; per- 

 haps a hybrid of P. fruticosa and P. semperflorens. Var. 

 variegata, Hort., has Ivs. marked with yellowish white. 



53. Cerasus, Linn. (Cerasus vulgaris, Mill. C. 

 capronidna, DC. P. austera, Ehrh.). SOUR, PIE, or 

 MORELLO CHERRY. Figs. 907, 910, Vol. II. Rather 

 low round-headed tree with gray bark and no central 

 leader (compare Figs. 907 and 906, Vol. II), sucker- 

 ing from the root: Ivs. ovate-obovate or short-ovate, 

 abruptly short-pointed, stiff and parchment-like and 



of Europe, grafted op Morello 

 small ornamental species, 

 names in nurseries. Prunus 



