98 26. KOSACE-s;. 



2—5. Fr. turbinate with the upper end of the bony carpels 

 disk dilated, almost as broad as tbe fruit. 



18. Pyetjs. Cal. 5-toothed. Pet. 5. Styles 2—5. Fr. 

 fleshy toith 5 cartilaginous or memhranous distinct 2-seeded 

 cells. Testa cartilaginous. 



Suborder I. Amygdalece. 



1. Pku'ntjs. 



* Young leaves convolute. Drupe glaucous. 



1. P. communis (Huds.) ; ped. solitary or in pairs, 1. elliptic 

 or ovate-lanceolate rather downy beneath. — a. P. spinosa (L.) ; 

 branches spinous, ped. glabrous, 1. usually glabrous, fr. globose. 

 Si/. E. B. 408. — /3. P. insititia (L.) ; branches slightly spinous, 

 ped. and underside of 1. usually downy, fr. globose. £". £. 841. 

 — y, P. domestica (L.) ; branches without spines, ped. glabrous, 

 1. hairy about the midrib beneath, fr. oblong. JS. B. 1783. — 

 n is a shrub with crooked and much armed black branches and 

 rt. before the leaves ; /3 a taller shrub with straight and slightly 

 armed brown branches and fl. and 1. usually together; y a 

 small tree with straightish branches. — Thickets, y is certainly 

 not indigenous. Sh. IV. V. u. Sloe. Blackthorn, [i. Bullace. 



E. S. 1. 



** Young leaves conduplicate. Drupe not glaucous. Ceeasus. 



'2. P. Pddus (L.) ; arborescent, 1. obovate-lanoeolate finely 

 serrate glabrous, _^. in pendulous 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. Birdr-Cherry. E.S.I. 



'?>. P. A'vium (L.) ; arborescent, I. drooping oblong-obovate 

 suddenly cuspidate incise-serrate downy beneath, calyx-tube con- 

 stricted below the entire sepals, " fr. heartshaped." — E. 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." Borr. 

 —Woods. T. V. Wild Cherry. Oean. E. S. L 



4. P. Cer'asus (L.) ; fruticose, I. not drooping oblong-obovati 

 or ovate-lanceolate doubly crenate-serrate glabrous, caly.v-fube no 

 constricted, fruit round. — E. B. S. 28C3. — An erect bushy shrub. 

 3 — 8 feet high. Umbels scattered. Outer scales of the leaf- 

 buds erect. Inner scales of the fiower-buds leafy. Sep. ere- 



