I'EUNTJS. 99 



1.6. CoTONBASTEE. Oalyx-sBgments 5. Pet. 5. Styles 2 — 5. 

 Pr. turtinata, its nuts adhering to the sides of the calyx 

 hut not cohering at the centre.-^Sta.m. eject, as long as tlie 

 teeth of the calyx. 



17. Mespiltjs. Calyix-segments 5, leaflike.' Pet. 5. Styles' 

 2 — 5. Fr. turhinate wiyi the tipper end of the bony c.arpels 

 exposed ; disk dilated, almost as broad as the fruit. 



18. Pyeus. Oal. 6-toothed. Pet. 5. Styles 2—5. Fr. 

 fleshy vnth 5 cartilaginous or membranoiis distinct 2-seeded 

 cells. Testa cartilaginous. 



Suborder I. Amygdalea. 



1. PEtfWs. 

 • Yofimg leaves oenvolvte. 



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

 or ovate-lanceolate rather downy b&neath. — a. P. spinosa (L.) ; 

 brapehes spinous, ped, glabrous, 1. usually glabrous, fr. globose. ■ 

 E. B. 842. — ^. P.. insititia (L.) ; branches slightly spinous, ped. 

 and undersiide of 1. usua,Uy downy, fr. globose. K £. 841.^ — 

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

 1. hairy about the midrib beneath, fr. usually oblong. E. B. 178i3. 

 — These characters are not constant : a. is iwually a shrub with 

 crooked and. much armed branches and fl., before the leaves ; /3. 

 is a taller shrub with straight and slightly armed branches and 

 fl. and 1. usually together ; y. is a smaE'tree, and those having 

 round fr. may not be the irue plant. — Thickets, a. alone is a true 

 native. Sh. IV. V. a. Sloe. Blackthorn. fi.BuIlace. E. S. I. 



** Yornig leaves condiiplieate. Ceeasus. 



2. P. Pddus ,(L.) ; arborescent,, 1,. obovateflajicecvlate finely 

 serrate glabrous,j'?. in pendulous racemes, fr. rouiidish-ioblong,-— - 

 A small tree. L. minutely doubly serrate. , ,i-Fl. ■ white^; many, 

 in a lax raceme. Er. black, harsh, bitter; nut wrinkled. — 

 Woods and hedges. T. V. Bird-Cherry. E.S.I. 



3. P. A'vitim (L.); arborescent, I. drooping oblong-obovate 

 xudderdy ctispidate incise-serrate d<nvny. beneath, cfilyx-tube con- 

 stricted below the' entire sepals, " fr. heartshaped."— A tree of 

 20 — 30 feet high. Outer scales of the leaf-budS: deflexed. 

 Flower-buds not leafy. Fl. in umbels. Vet. liifid, -with a 

 minute claw. "Fr. firm, bitter, black or, red." Borr. — Wpods., 

 T; V. TTiM Cherry.' ' _ E.' S. L ' 



