BOTANY FOR YOUNG PEOPLE. 163 



M. Palustrus. Seeds smooth. Calyx, leaves 

 nearly oval, as long as the tubes of the corol. 

 Stem sub-ramose. Leaves, lance-oval. Ra- 

 cemes bractless. [Forget Me Not.] 



M. Arvensis. Calyx leaves oval, acuminate, 

 hirsute, longer than tube of corol. Stem branch- 

 ing. Racemes conjugate. Leaves lance-oblong, 

 hirsute. [Scorpion Grass.] 



NYMPHEA. Polyandria Monogynia. Calyx 

 four, six and seven leaved. Corol, many pe- 

 talled, petals equalling the length of sepals. 

 Stigma a broad, disk marked with radiated lines. 

 Berry, many celled, many seeded. 



N. Odorata. Leaves round-cordate, entire, 

 rfub-emarginate, lobes spreading asunder, acumi- 

 nate, obtuse. Petals equalling the four leaved 

 Calyx. [Sweet Scented Water Lily. 



OXALTS. Decandria Pentagynia. Calyx 

 five parted, permanent. Petals, five, often con- 

 nected at the base. Capsules, five celled, five 

 cornered, opening at the corners. Seeds arilled. 



O. Acetosella. Scape one flowered. Styles 

 equal. Leaves ternate, obcordate, hirsute. Root, 

 toothed. [Wood Sorrel. 



