KEY TO NATURAL ORDERS. IX. 



Capsule 2 5- celled, septicidal or sep- 



tif ragal ELATINE^: 62 



Flowers irregular; calyx and corolla present. 

 Sepals 5, auricled: petals 5, one spurred 



at base : VIOLARIE^E 28 



Sepals 2, scale-like; petals 4, unequal, the 



2 larger gibbous at base FUMARIACE^E 12 



Flowers apetalous, or calyx and corolla 



indistinguishable. 

 Plants with scarious stipules. 

 Fruit a 1-celled many-seeded capsule . . CABYOPHYLLE.E 30 



Fruit a triquetrous achene POLYGONE^I 40 



Fruit utricular, 1-seeded IIJLECEBRE^E 39 



Plants with no stipules ; calyx corolla-like ; 



Fruit corky, 3 5- winged, 1-seeded NYCTAGINE^E 50 



Shrub with drupaceous fruit DAPHNOIDE.E 161 



Fruit a triquetrous or lenticular achene . POLYGONE^E 40 



Stipules none; calyx green, inconspicuous; 



Calyx dry; plants not succulent AMARANTOIDE^E 51 



Calyx and the whole plant more or 

 less succulent, often mealy or 



scurfy SAiiSOLACE^E 52 



Flowers apetalous, unisexual ; capsule 3-celled, 



3 seeded. 



Herbs; styles 3 and bifid TITHYMALOIDE^ 78 



Shrubs: style 1, simple BHAMNE.E 74 



DIVISION II. CHOBIPETAL.E PEBIGYN^. 



Calyx more or less distinctly synsepalous, but petals distinct, at least 

 at base. Stamens perigynous. 



A. Ovary more or less completely superior. 

 * Stamens many, usually %0 or more. 



Pistils many, concealed in a hollow receptacle. 



Leaves opposite, entire, stipules none CALYC ANTHER ] 19 



Leaves alternate; stipules adnate Bosa in BOSACE^E 118 



Pistils many, on a flat or convex receptacle BOSACE.E 11] 



Pistils 15; fruit a drupe DRUPAOE.E 108 



Pistil 1, becoming a plumose-tailed achene 



Cercocarpus in BOSACE^ 113 

 Pistils 35, becoming inflated capsules 



Opulaster in BOSACE^I 112 



