164 BOTANY FOR YOUNG PKOPLE. 



PAPAVER. Polyandria, Monogynia. Calyx, 

 two-leaved, caducous. Corol, four petalled. 

 Stigma, a disk with radiating lines over it. Cap- 

 sules one celled, opening dehisent by holes un- 

 der the permanent stigmas. 



P. Rheas. Capsules, urn shaped, smooth. 

 Stem, many flowered, pilose. Leaves, gash- 

 pinnatifid. [Wild Poppy.] 



QUERCUS. Monoecia Polyandria. Stami- 

 nate flowers. Calyx, commonly five, cleft. Co- 

 rolla, none. Stamens, five or ten. Female : 

 Calyx, one leaved, quite entire rugged. Corolla, 

 none. Styles, two to five. Seeds one, ovate. 



Q,. Tinctoria. Leaves obovate, oblong, pu- 

 bescent beneath ; lobes oblong, obtuse, denticu- 

 late, setaceous mucronate. Calyx, saucer form. 

 Acorn, depressed, globose. [Black Oak.] 



RUBUS. Icosandria Polygynia. Calyx, five 

 cleft, inferior. Corol, five petaled. Berry, com- 

 posed of one seeded juicy, acini. 



R. Ideus. Leaves quinate, pinnate and ter- 

 nate, tomentose underneath, leaflets rhomb- 

 ovate, acuminate. Petioles channelled. Stem 

 prickly. [Raspberry.] 



