1450 PRUNUS 



globose fr. ; P. glanduldsa, Torr. & Gray, Tex., a low 



bush with very crooked and pubescent branches, very 



small, oval-obtuse Ivs., and a small velvety fruit. 



coc. Lvs. mostly narrow and peach-like, firm and 



more or' less shining, glabrous, the young 



growths not pubescent: fr. thin-skinned. 



14. anffustifblia, Marsh. (P. Chicd.sa, Mlchaux ?). 

 Chickasaw Plum. Mountain Chebky. Pig. 1985. 

 Plate XXX. Small, bushy - topped twiggy tree, with 

 slender zigzag reddish branches: lvs. lanceolate or ob- 

 long-lanceolate and conduplicate ftrough-like), shining, 

 finely and closely serrate: fr. small and early, cherry- 

 like, slender-stemmed, red or yellow and yellow-dotted, 

 shining, thinly glaucous, the 'flesh soft and juicy and 

 clinging to the small, rough stone. Del., south and 

 west, being abundant in the sandy thickets. S.S. 

 4:152.-This species has given rise to several worthy 

 pomological varieties, as Newman and Lone Star. It is 

 not hardy in New York. It sometimes reaches a heighl 

 of 20-25 ft., but it is often a small, bushy tree. It is 

 supposed that Michaux had this plant in mind when he 

 made the name P. Chicasa. The specimens in his her- 

 barium (in Paris) are P. hortulana, however; but they 

 are marked with an interrogation point, as if he were 

 not sure of them, and they may not represent his idea 

 of the species. 



Var. Witsoni, Waugh {P. Wdtsoni, Sarg.). Sand 

 Plum. Fig. 1986. Bush. 3-6 ft. high, with more zigzag 

 twigs than in P. atigustifolia, more spiny, the lvs. and 





PRUNUS 



hortulana group, var. Waylandi (Fig. 1988), is char- 

 acterized bj strong growth, straight dark colored tv, igs, 

 broad, heavy, coarseh toothed shimng hs with 2-tr 

 glands on the petioles, late blossoming, and thm skinned 

 fr. of good flavor Ihis form i-. common m the middle 

 South and Texas It is represented in cultnation by 

 many excellent varieties, as Wajland bolden BeuiH, 

 Moreman, Reed, Carheld, Cumberland and others This- 



^- "^'"^^^^-.^ 



1985. Leaf of Prunus augustifolia. Natural size. 



is apparently the " Prunus spec. Texas " described and 

 figured bv Dippel in Laubholzkunde. 3. p. 626. Waueh 

 has suggested that P. riviilaris, Scheele, is this Way- 

 land type of Plums. Two sheets of Lindheimer's speci- 

 mens, duplicates of those on which Scheele founded 

 the species, are in the Gray Herbarium. They repre- 

 sent a small, crabbed-growing bush with small con- 

 duplicate lvs. that are hairy beneath, and very smalL 

 slenrler-stalked fls. just preceding the lvs. It is very 

 doubtful if tliey can be held to represent the Wayland 

 PIum«. They are rather to be compared with P. ortho- 



/'. " - '' — ) ', Km, -hue, from southern Texas 

 (I' i II I - 1 , Mi-cording to Sargent, "rather 



■ ■[' - I : ! /■ /i'))-^!^*!;!, from which it can 



III ill-! ii._:ii 'm -1 I. III. smaller number of glands on 

 the petiuliK, by tlie p;;landular calyx-lobes, the dark- 

 colored fruit and smoother stone." It is a twiggy shrub 

 growing 4 or 5 ft. high. Lvs. oblong-ovate, acuminate, 

 coarsely serrate, shining above, pilose beneath : fis. 

 white or tinged pink, appearing with the opening of the 

 leaf -buds: fr. globose, 1 in. in diam., dark blue ornearly 

 black, glaucous, the flesh yellow and of good quality. 

 This plant must be further studied before its botanical 

 position can be determined. Possibly it is a geographi- 

 cal form of the Sand Plum or the Hortulana group, al- 

 though the hairiness of the lvs. beneath distinguish it. 

 Not in the trade. 



Subgenus II. Cerasus. Cherries. 

 Fruit globular or oblong, not sulcate, glabrous and' 

 usually not glaucous, the stone turgid (usually nearly 

 globular), and rarely conspicuously longer than broad 

 and smooth: fls. in umbel-like fascicles (mostly solitary 

 in P. tomentosa),Tnost\y 



fls. smaller, the fr. with thi.-ker skin. Drv regions of 

 Nebraska, K;iii-:i- m -I mi, I ,'i.,nia, and planted bv the 

 settlers. Hill. |ii I ' - i r,i,t. G.P. 7:135. 



15. hortulana. HI w iIJuose Plum. Fig. 1987. 

 Mostly tulIiT till ilnh /' "1. ;ii.v7(7oiia, with straighter 

 twigs, not thorny : Iv.s. plane or flat, closely and ob- 

 tusely-glandular serrate: fr. globular, glossy and thinly 

 glaucous, lemon - yellow to red, juicy, the thin flesh 

 clinging to the small rough stone. S.S. 4:151. — A 

 group of hybrids of P. Americana and P. angusti- 

 tolia, but occurring in the wild from Maryland and 

 Virginia to Texas. In orchards it is represented by 

 many varieties, of which the Wild Goose is the best 

 known. One branch of the species-group, var. Miner!, 

 Bailey, is near to P. Americana, and represents the 

 northward extension of the group: it is known by its 

 thicker and duller lvs. which are very veiny below and 

 coarsely toothed and somewhat obovate in outline, and 

 by a late firm fruit. To this form belong the Miner, 

 Langsdon, Clinton, Forest Rose. Another branch of the 



A. Plant dwarf, usually 

 only a bush, with 

 no central trunk. 

 16. pdmila, Linn. Sakd 

 Cheeky. Dwarf 

 Cherry. Fig. 1989. De- 

 cumbent at the base when 

 old, but the young growth 

 strictly erect and often 

 reaching 5-8 ft. in height, 

 the slender, twiggy 

 growth reddish and gla- 

 brous: lvs. narrowly ob- 

 lanceolate, acuminate, 

 short-pointed or nearly 

 obtuse, the margins 

 above very closely ser- 

 rate, dull green above 

 and whitish green be- 



eath: fls. 

 abels 



fld. 



pedicels 



slender: fr. nearly glob- 1986. Prunus aneustifolia, 

 ular, purple -black, on 'Watsoni.— The Sand PlumO 



