390 CLASS XXII. ORDER IT. 



rolla none; styles five; seed one, covered with the 

 succulent calyx. 



Order VI. HEXANDRTA. Six stamens. 



407. Smilax. Calyx six leaved; corolla none ; 

 styles three ; berry three celled ; seeds two. 



408. DioscoREA. Calyx six parted ; corolla none. 

 Fertile flowers, styles three ; capsules three celled, 

 compressed ; seeds two, membranaceous. 



Order XII. POLYANDRIA. Many stamens. 



409. PopuLUS. Calyx a lacerated scale of the 

 ament; corolla turbinate, oblique, entire. In the fer- 

 tile flowers, stigma four cleft ; capsules two celled, 

 many seeded. 



Order XIII. MONADELPHIA. Stamens united. 



410. JuNiPERUs. Barren flowers, calyx the scales 

 of an ament; corolla none; stamens three. Fertile 

 flowers, calyx scales of an ament, fewer, three parted, 

 becoming fleshy, united into a three seeded berry. 



411. Taxus. Barren flowers, calyx none; corolla 

 none; stamens numerous; anthers peltate, eight cleft. 

 Fertile flowers, calyx cup shaped, entire ; style none ; 

 seed one, imbedded in the fleshy calyx. 



DKECIA. 

 DIANDRIA. 



401. VALLISNERIA. 

 Vallisneria Americana. Mx. Vallisneria: 



Leaves linear ; stalks of the barren and fertile flow- 

 ers straight. 



