ROSACEA. (rose family.) 



303 



acutely serrulate, .01 to. 03 long, .005 to .015 broad, those of sterile 

 branches often much larger. Peduncles as long as calyx ; calyx-tube * * ; 

 petals a little longer than calyx ; drupe small, ovate ; stone smoothish — 

 Spring — Mountains of Syrian Desert to Aintab, and northward. 



3. C. pro§trata, Labill. 5 A low, often prostrate or procum- 

 bent shrub, vnth. stiff, intricate, divaricate branches. Leaves ovate to 

 orbicular, acutely serratulate, short petioled, canescent leneatJi, .005 to. 01 

 long. Calyx-tube .003 long, .0015 broad ; drupe ovate-globular, as 

 large as a pea, somewhat grooved— Summer — Mountains of Galilee ; 

 alpine Lebanon, Antilebanon, Amanus, Akherdagh, and northward. 



Var. concolor, Boiss. Leaves glabrous on both sides — El- Jebel- 

 el-Abiad in the Syrian Desert. 



* * Floioers corymled, white, coming out with leaves. 



4. C. Malialeb, L. Mahleb. 5 2 to 3 ; branches numerous, 

 spreading. Leaves ovate to round-ovate, acuminate, often cordate, .03 

 to .05 long, obtusely serrate. Drupe ovate, as large as a pea, generally 

 mucronate — Spring — Duma, (Lebanon) ; Marash, and northward. 



Fig. 157. 



(1) Flower of Cerasus, cut open lengthwise showing the calyx free from the ovary, but 

 enclosing it in its tube, the stamens and petals inserted at throat of calyx-tube, and the 

 calyx-lobes reflexed. The ovary is seen to be surmounted by terminal style. (2) Drupe 

 of the same species of Cerasus. 



3. PRUI^IJS, Tourn. Plum. Khaukh, 



Drupe fleshy, indehiscent, covered with a bloom. Stone ovate, 

 flattened, wrinkled or smooth — Trees or shrubs, with convolute aestiva- 

 tion. 



1. P. spinosa, It. ^ K low shrub with divaricating, spiny 

 branches, the twigs glabrous or puberulent. Leaves lanceolate or ellip- 

 tical, serrate, glabrescent. 1-2-flowered; peduncles glabrous or'puberu- 

 lent; drupe erect, globular, .01 in diameter — April — Amanus, and 

 northward. 



2. P. monticoJa, C. Koch. 5 Petioles sometimes puberulent, 

 otherwise glabrous, unarmed or spinescent. Leaves elliptical, short- 

 acuminate serrulate, cuneate at base. Buds 3-flowercd ; pedimcles 

 slender, as long as fruit; drupe .015 long, ovate, obliquely mucronate 

 — Spring — Woods ; Antilebanon, Cassius, Amanus, and northward. 



3. P. ur§!iia, Ky. Khaiikh-ed-Bib. Braqruq. 4 to 8, straggling. 

 Branches erect, tortuous, somewhat spinescent ; twigs velvety. Leaves 

 orbicular, ovate, and elliptical to oblong, .02 to .03 long, .015 to .03 

 broad, crenate, rounded or acute at base, velvety below. Buds usually 

 2-flowered, but generally maturing only one fruit ; peduncles short, 



