ANALYTICAL KEY 



15 



RANUNCULACEAE, 392 



Penthorum, 442 

 AIZOACEAE, 377 



RANUNCULACEAE, 392 



CARYOPHYLLACEAE, 377 



Glaux, 647 



LYTHBACEAE, 591 



ARISTOLOCHIACEAE, 351 



Ludvigia, 594 



Chrysosplemum, 448 



Ovaries 2 or more, separate 

 Ovary single. 



Ovary 5-celled, 5-beaked ; leaves scattered 

 Ovary 3-5-celled ; leaves opposite or whorled 

 Ovary 1-2-celled. 

 Leaves compound 

 Leaves simple. 

 Calyx of separate sepals 

 Calyx 5-toothed or -cleft 

 Calyx 4-toothed 

 ra. Ovary and pod inferior. 



Ovary G-celled ; stamens 6-12 

 Ovary 4-celled ; stamens 4 

 Ovary 1-celled ; stamens 8-10 

 X. Both calyx and corolla present n. 

 n. Corolla of separate petals o. 



o. Stamens numerous, at least more than 10 (rarely 9-10 in Pola- 

 nisia), and more than twice as many as the sepals or calyx- 

 lobes p. 



p. Calyx entirely free and separate from the pistil or pistils q. 

 q. Pistils several or many, wholly distinct or united at base 



into a strongly lobed or several-beaked ovary r. 



r. Aquatics with peltate leaves NYMPHAEACEAE, 389 



r. Terrestrial plants. 

 Climbers. 



Leaves alternate MENISPERMACEAK, 410 



Leaves opposite Clematis, 402 



Not climbing. 



Filaments united into a tube MALVACEAE, 566 



Filaments not united. 



Leaves opposite, entire CALYCANTHACEAE, 409 



Leaves alternate. 

 Stamens on the calyx 

 Stamens on the receptacle or disk. 

 Trees or shrubs. 



Sepals and petals imbricated 

 Sepals and petals valvate 

 Herbs 

 q. Pistils strictly one as to ovary; the styles or stigmas may 



be several s. 



s. Leaves punctate with translucent dots HYPERICACEAE, 571 



s. Leaves not punctate t, 

 t. Ovary simple, 1-celled. 



Ovules 2 ROSACEAE, 454 



Ovules many. 

 Leaves 2-3-ternately compound or dissected 



RANUNCULACEAE, 392 



Leaves peltate, lobed Podophyllum, 411 



t. Ovary compound. 

 Ovary 1-celled. 



Sepals 2 (rarely 3), caducous; juice milky or col- 

 ored ; placentae parietal PAPAVERACEAE, 414 

 Sepals 2; juice watery; placentae central PORTULACACEAE, 387 



ROSACEAE, 454 



MAGNOLIACEAE, 408 



ANONACEAE, 410 



RESEDACEAE, 439 



