PRUNUS. 
Suborder I. Amygdalece. 
1. Pru'nus Linn. 
* Young leaves convolute. Drupe glaucous. 
1. F. spinSsa (L.) ; ped. solitary or in pairs, 1. elliptic or ovate- 
lanceolate rather downy beneath. P. communis (Huds.) ed. viii. 
— a ; branches spinous, ped. solitary glabrous, 1. usually glabrous, 
fr. globose. Si/. E. B. 408. — [/S- macrocarpa (Wallr.) P. fruticans 
(Weihe); bratiches 'spinous, ped. glabrous usually in pairs, 1. pubescent 
on the veins beneath, fl. and fr. larger than in a, fr. globose.] — 7. P. 
insititia (L.) ; branches slightly spinous, ped. and underside of 
I. usually downy, fr. globose. E. B. 841. — *5. P. domestica 
(L.) ; branches without spines, ped. glabrous, 1. hairy about the 
midrib beneath, fr. oblong. E. B. 1783.— a is a shrub with 
crooked and much armed black branches and^. before the leaves ; 
ii and 7 taller shrubs with fl. and I. usually together, 7 with 
straight and slightly armed brown branches; 5 a small tree 
with straightish branches. — Thickets. 5 not indigenous. Sh. 
IV. V. Sloe. Blackthorn, -y. Bull ace. S. Plum. E.S.I. 
** Young leaves conduplicate. Drupe not glaucous. Cerasus. 
2. P. Pddus (L.) ; arborescent, 1. obovate-lanceolate finely 
serrate glabrous,^, in 2)endulous racemes, fr. roundish-oblong. — 
E. B. 1383. — A small tree. L. minutely doubly serrate. Fl. 
white, many, in a lax raceme. Fr. black, harsh, bitter ; nut 
wrinkled. — Woods and hedges. T. V. Bird-Cherry. E. S. I. 
3. P. A'vium (L.) ; arborescent,^, long-stalhed drooping oblong- 
obovate suddenly cus2)idate incise-serrate downy beneath, calyx- 
tube constricted below the entire sepals, pet. flaccid, "fr. heart- 
shaped."—^. B. 706.— A tree 20—30 feet high. Outer scales 
of the leaf-buds deflexed. Flower-buds not leafy. Fl. in 
umbels. Pet. bifid, with a minute claw. "Fr. firm, bitter, 
black or red with staining juice." — Woods. T. V. Wild 
Cherry. Gean. E. S. I. 
4. P. Cerasus (L. em., Hayne) ; fruticose, /. short-stalked, 
not drooping oblong-obovate or ovate-lanceolate doubly crenate- 
serrate glabrous, calyx-tube not constricted, " Tpet. firm," fruit 
round. — E. B. S. 2863. — An erect bushy shrub 3 — 8 feet high. 
Umbels scattered. Outer scales of the leaf -buds erect. Inner 
scales of the fiower-buds leaHike. Sep. crenate-serrate. Pet. 
subemarginate, with a claw. " Fr. juicy, acid, always red, 
not staining." '—Hedges. Sh. V. Divarf Cherry. E. I. 
1 This is var. caproniana (Ijinn.) = var. erythrocarpa (Rchb.). The var. austera 
(Linn.) = var. melaitocarpa (Rchb.) has a drier purple fruit. — A. J. W. 
