ANALYTICAL KEY 17 



w. Ovaries 2 or more, wholly separate or somewhat united x. 



X. Stamens united with each other and with a large thick stigma 



common to the 2 ovaries Asclepiadaceak, 66i 



X. Stamens free from each other and from the pistils y. 

 y. Stamens on the receptacle, free from the calyx. 



Leaves punctate with translucent dots Rutaceae, 537 



Leaves without translucent dots. 

 Trees or shrubs ; leaves pinnate. 

 Low shrub; leaflets mostly 5 Zanthorhiza, 408 



Tree ; leaflets 11 or more Ailanthus, 538 



Herbs. 

 Leaves fleshy Crassulaceae, 441 



Leaves not fleshy. 

 Ovaries or lobes of the ovary 2-5, with a common style. 



Ovary 2-3-lobed Limnantkaceae, 551 



Ovary 5-lobed Geraniaceae, 534 



Ovaries with separate styles or sessile stigmas 



Ranunculaceae, 392 

 y. Stamens inserted on the calyx. 



Plant fleshy ; stamens just twice as many as the pistils 



Crassulaceae, 441 

 Plant not fleshy ; stamens not twice as many as the pistils. 

 Stipules present Rosace ae, 454 



Stipules none Saxifragaceae, 444 



to. Ovary 1 z. 



z. Ovary simple with 1 parietal placenta Leguminosae, 499 



z. Ovary compound, as shown by the number of its cells, placentae, 

 styles, or stigmas A. 

 A. Ovary 1-celled. 



Corrolla irregular. 

 Petals 4 ; stamens 6 Fumariaceae, 416 



Petals and stamens 5 Violaceae, 579 



Corolla regular or nearly so. 

 Ovule solitary. 

 Trees or shrubs Anacardiaceae, 552 



Herbs Cruciferae, 418 



Ovules more than one. 

 Ovules at the center or bottom of the cell. 

 Petals not inserted on the calyx Caryophyllaceae, 377 



Petals inserted on the throat of a bell-shaped or 



tubular calyx Lythraceae, 591 



Ovules on 2 or more parietal placentae. 

 Leaves punctate with translucent dots Hypericaceae, 571 



Leaves beset with gland-tipped bristles Droseraceae, 440 



Leaves neither punctate nor bristly-glandular. 

 Petals 4. 

 Stamens essentially equal ; pod usually stiped 



Capparidaceae, 438 

 Stamens unequal, 2 being shorter than the other 4 ; 



pod sessile Cruciferae, 418 



Petals 3 or 5. 

 Ovary stiped Passifloraceae, 587 



Ovary sessile. 



gray's manual — 2 



