CLASS XII. 153 



the drupe smooth, with prominent seams at the sutures. (ciiei:y 

 plum.) 



Hxotic. 



AMYG"D>ALUS. Calyx 5-cleft, inferior; petals 5, drape with a nut, 

 perforated with pores, flowers sessile. (peach.) 



PHILADEL/'PHUS. Calyx 4 or 5-paru\l, superior, top-form ; corolla 4 

 or5-petaled; style 4-cleft ; capsule 4 or 5-celled, many-seeded; seed 

 arilled. (false syringa, or mock orange.) 



Order 2. Digynia, to Order 5. Peutagynia ; or Dipenta- 

 gynia. From two to Jive pistil*. 



CRATK'GUS. Calyx superior, 5 cleft; petals 5; styles 1 to 5; berry 

 mealy; seeds 2 to 5, bony. (thorn-bush.) 



ARO'NIA. Catyx superior, 5-toolhed; petals 5; fruit pcmaceous; 

 berry 5 or 10-celled; cells 1 or 2-seeded; seeds cartilaginous. (shad- 

 flower, choak berry.) 



PYRUS. Calyx 5-cleft, superior ; corolla 5-petaled ; pome 5-celled, 

 many-seeded ; seeds compressed-ovate. (pear, apple, quince.) 



Order 13. Pologynia. Many pistils. 



RO'SA. Calyx urn-form, inferior, 5-cleft, fleshy; contracted to- 

 wards the top ; pcrals 5; seeds numerous, bristly, fixed to the sides of 

 the calyx within. A genus remarkable for the multiplication of its 

 petals, by rich culture. (rose.) 



RU'BUS. Calyx 5-cleft, inferior; corolla 5-petaled; pistils nume- 

 rous ; berry composed of many jui-:y, 1-seeded acines, on a dry recep- 

 tacle. (raspberry, black-berry.) 



FRAGA'RIA. Calyx inferior, 10-cleft ; 5 alternate divisions smaller ; 

 corolla 5-petaled; receptacle ovate, berry-like; acines naked, im- 

 mersed in the receptacle, caducous. (strawberry.) 



CLASS xn. POLYANDRIA. More than ten Stamens situated on 

 the receptacle. 



Order 1. Monogynia. One pistil. 



SANGUINA'RIA. Calyx caducous, 2-leaved ; corolla about 8-petaled, 

 stigma sessile, twinned, 2-grooved ; capsule pod-like, ovate, 1-cclled, 

 2-valved, acute at each end; valves caducous; columella 2, perma- 

 nent. (blood-root.) 



PODOPHYL"LUM. Calyx 3-leaved, minute; corolla about 9-petaled , 

 stigma large, crenate, sessile; berry 1-celled, crowned with the stig- 

 ma, large, many-seeded; columella one-sided. (wild mandrake.) 

 Exotic. 



PAPA'VER. Calyx 2-leaved, caducous; corolla 4-petaled; stigma a 

 broad disk, with radiating lines ; capsule 1-celied, dehiscent by pores 

 under the permanent stigma. (poppy.) 



Order 2. Digynia, to Order 5. Pentagynia, or Di-Penta- 



gynia. 

 DELPTII'N'DM. Calyx ; corolla 5-nelaleei, unequal ; nectary. 2-f left 



