KEY TO THE FAMILIES 287 



■Tjj. Leaves conipouud, palmately S-folio- 



late Oxalis in Geraniacea, p. 342 



mil. Fruit of 2 follicles, seeds hairy tufted: 



juice milky Asclepiadacect', p. 386 



DD. Gamopetal^: corolla in oiie piece, at least toward the 

 base (as if the petals were more or less united): 

 calyx and corolla both present. 

 E. Stamens more numerous than corolla-lobes. 



F Ovary 1-celled, 1 parietal placenta: fruit a 



legume Legiiviinosce, p. M7 



FF. Ovary 3, several-celled. 



G. The stamens nearly or quite free from corolla: 



style 1 Uricace'e, p. 391 



GG. The stamens free from corolla: style.s 5 



Oxalis in Gernaiacece, p. 342 

 GGG. The stamens on base of corolla-tube: filaments 



monadelphous Malvacece p. 340 



EE. Stamens as many in number as the lobes of the corolla 

 and inserted opposite to the lobes: ovary 1-celled: 

 style and stigma 1: pod several- to many-seeded. 



PrimulacecK , p. 390 

 EEE. Stamens equal in number to lobes of corolla and alter- 

 nate with them, or fewer in number. 

 F. Ovary inferior. 



G. The stamens distinct, inserted on corolla, 4 or 

 5: ovary 2-5 celled. 



I. Leaves whorled or opposite with stip- 



ule.s ". Hubiacece, p. 334 



II. Leaves opposite, without true stipules.. 



Caprifoliacece, p. 39G 

 GG. The stamens inserted on corolla and united by 

 anthers. 

 H. Flowers in a head with involucre subtend- 

 ing Compositoe, p. 400 



HH. Flowers not in involucrate heads, but 



separate : corolla irregular : 



Loheliacew, p. 399 

 G<GG. The stamens not inserted on corolla and not 

 united to each other: no stipules: juice 



milky Campanulaceit , p. 398 



FF. Ovary superior. 



G Corolla irregular: stamens 4, in 2 pairs: or 2 

 stamens: the ovary deeply 41obed around 

 the style : fruits 4 dry nutlets : stem 

 square Lahiatw, p. 368 



