KEY TO THE FAMILIES 43 



4. Erept or suberect, suffrutescent or shrubby plants with perfect, 

 elongated, showy flowers, the calyx viscid-glandular. 



109. Plumbaginareap (p. 361) 

 2. Stamens partly adnate to the corolla. 

 3. Stamens opposite the lobes of the corolla , as many as the lobes or 

 more numerous. 

 4. Ovary of several free or nearly free carpels; succulent herbs. 



61. Crassvlaceae (p. 217) 

 4. Ovary of a single carpel or of several united ones. 

 5. Ovary 1-celled. 



6. Erect, normally unbranched trees with milky juice, large 

 palmately lobed leaves, dioecious flowers, and large, fleshy, 



many-seeded fruits 94. Caricaceae (p. 337) 



6. Shrubs, trees, or woody vines with watery juice; small, usually 

 perfect flowers; undivided leaves; and small 1-seeded fruits. 



109. Myrsinaceae (p. 360) 



5. Ovary several-celled; trees. 



6. Styles or stigmas distinct; flowers mostly unisexual; juice 



watery. , 111. Ebenaceae (p. 363) 



6. Styles and stigmas united; flowers mqstly perfect; juice milky. 



110. Sapotaceae (p. 362) 

 ,8. Stamens fewer than the lobes of the regular corolla an d alternate 



with them; woody shrubs or vines 112. Oleaceae (p. 364) 



8. Stamens as many as the lobes of the corolla in regular flowers 

 and alternate with the lobes, or sometimes fewer in irregular 

 flowers. 

 4. Carpels distinct, at least below, sometimes united at the apex by 

 the styles; plants with milky juice. 



6. Styles united; stamens distinct; polkn of loose grains; shrubs, 



trees, or woody vines 1X6.' Apocynaceae (p. 368) 



5. Styles distinct, united by the stigma only; stamens usually 

 united; pollen united in waxy masses or the grains in groups 



of four; herbs or vines 117. Asclepiadaceae (p. 375) 



4. Carpels entirely united . 

 5. Ovary 1-celled. 

 6. Flowers irreg:ular. 



7. Aquatic submerged herbs with inflated bladder-like leaves, 

 or delicate, unbranched, leafless or nearly leafl,ess herbs 

 growing in damp places.... 128. Lentibulariaeeae (p. 432) 

 7. Terrestrial herbs or shrubs with broad leaves. 



127. Gesneriaceae (p. 431) 

 6. Flowers regular or nearly so; erect unbranched herbs with 



opposite leaves 115. Gentianaceae (p. 367) 



5. Ovary 2- or falsely 4-eelled. 

 6. Leaves with stipules or stipular scars. 



114. Loganiaceae (p. 366) 



6. Stipules none. 

 -7. Flowers regular. 



8. Herbs with radical leaves and small scarious flowers in 

 dense elongated spikes; capsules small, circumsciss. 



130. Plantaginaceae (p. 444) 

 8. Flowers not scarious nor in dense spikes; fruit not 

 circumsciss. 



