50 CLASS XIII. ORDER L 



petallcd : style 4 -cleft : capsule 4 or 5-celled, many seeded : 

 seed arilled. 



Primus. Calyx 5 -cleft, inferior : corol 5-petalled : nut 

 of the drupe smooth with prominent seams at the sutures. 



Amygdalus. Calyx 5 -cleft, inferior : petals 5 : drupe 

 with a nut perforated with pores : flowers sessile. 

 rum. 



IROM ORDER II, DIGYNIA, TO ORDER V. PENTAGYMA. 



Crataegns. Calyx superior, 5-cleft : petals 5 : styles 

 generally- 3 or 5 : berry mealy : seeds 2 to 5, hony. 



Jlronia. Calyx 5 -toothed : petals 5 : fruit pomaceous : 

 berry 5 or 10-celled $ cells 1 or 2-secdcd ; seeds cartila- 

 ginous. 



Pyrus. Calyx 5-cleft, superior : corol 5-petalled : 

 pome 5 celled, many seeded : seeds ovate, thick, not mem- 

 uranaceous or cartilagenous. 



Spiraea. Calyx 5-cleft, inferior, spreading : corol 5-- 

 petalled : capsule 2-valved within, many-seeded. 



ORDER XIII. POLYGYNIA. 



Rosa. Calyx urn-form, 5-cleft, fleshy, contracted to* 

 wants the top : petals 5 : seeds numerous, bristly, fixed 

 to the sides of the calyx within. 



Rubus. Calyx 5-cleft, corol 5-petalled : pistils nume- 

 rous : hcrry composed of many juicy, 1 --seeded acines. 



Fragaria. Calyx 10-cleft, 5 alternate divisions small- 

 er : corol 5-pc tailed ; receptacle ovate, berry-like, cadu- 

 cous. 



Comarum. Calyx 10-cleft, 5-alternate divisions small- 

 er : petals 5, smaller than the calyx ; receptacle ovate, 

 spongy, permanent, villous. 



CLASS XIII. POLYANDRIA. 

 ORDER I. MOXOGYXIA. 



Cimicifuga. Calyx ahout 4 -leaved, hecoftiing colored 

 before expanding, caducous : corol o : stigma sessile* 

 converging towards the gibbous side of the germ : cap- 

 sule 2-valved. 



Cistus. Calyx 5-leaved, 2 of them smaller : corol &.- 

 petalled : capsule S-valved, opening at the top.. 



