ANALYTICAL KEY 



15 



Ovaries 2 or more, separate 

 Ovary single. 

 Ovary 5-celled, 5-beaked ; leaves scattered 

 Ovary 3-5-celled ; leaves opposite or wliorled 

 Ovary 1-2-celled. 

 Leaves compound 

 Leaves simple. 

 Calyx of separate sepals 

 Calyx 5-toothed or -cleft 

 Calyx 4-toothed 

 m. Ovary and pod inferior. 



Ovary 6-celled ; stamens 6-12 

 Ovary 4-celled ; stamens 4 

 Ovary 1-celled ; stamens 8-10 

 Both calyx and coioUa present n. 

 n. Corolla of separate petals o. 

 V. 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. 

 g. Pistils several or many, vrhoUy distinct or united at base 

 into a strongly lobed or several-beaked ovary r. 



Ranunculaceae, 392 



Penthorum, 442 

 AlZOACEAB, 377 



Ranuncclaceae, 392 



Caryophyllacbab, 377 



Glaux, 647 



Lythkaceab, 591 



Aristolochiacbae, 351 



Ludvigia, 594 



Chrysosplenium, 448 



r. Aquatics with peltate leaves 

 r. Terrestrial plants. 

 Climbers. 

 Leaves alternate • 



Leaves opposite 

 Not climbing. 

 Filaments united into a tube 

 Filaments not united. 

 Leaves opposite, entire 

 Leaves alternate. 

 Stamens on the calyx 

 Stamens on the receptacle or disk. 

 Trees or shrubs. 

 Sepals and petals imbricated 

 Sepals and petals valvate 

 * Herbs 



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

 be several s. 

 s. Leaves punctate with translucent dots Htpericaceae, 571 



s. Leaves not punctate t. 

 t. Qvary simple, 1-celled. 



Ovnles 2 Rosaceae, 454 



Ovules many. 

 Leaves 2-3-tern»tely 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 Papaveeaceae, 414 

 Sepals 2; juice watery; placentae central Portulacaceae. .387 



Nymphaeaceae, ! 



Menispermaceae, 410 

 Clematis, 402 



Malvaceae, 666 



Calycanthaceae, 409 



Rosaceae, 454 



Magnoliachae, 408 



Anonaceae, 410 



Rbsbdaceae, 439 



