c. Pistils united below into a lobed or

beaked ovary. d. Water plants with floating leaves. _Nymphaceae_ 156 d. Terrestrial or land plants. e. Pistils forming a ring; filaments united. _Malvaceae_ 284 e. Pistils not forming a ring. f. Pistils inserted on a convex receptacle; stamens attached to the calyx. _Rosaceae_ 218 f. Receptacle not convex; stamens not attached to the calyx. _Papaveraceae_ 160 b. Pistil one, the styles and stigmas often several. c. Ovary one-celled. d. Style and stigma one. e. Fruit a drupe (stone-fruit.) _Drupaceae_ 216 e. Fruit an akene tipped with a tail. _Rosaceae_ 218 d. Styles or stigmas more than one. e. Sepals falling as the flowers expand. f. Sepals two or three; fruit a capsule. _Papaveraceae_ 160 f. Sepals four or six; fruit a berry. _Ranunculaceae_ 126 e. Sepals persistent; low shrubs. _Cistaceae_ 304 c. Ovary more than one-celled. d. Water plants with floating leaves. _Nymphaceae_ 156 d. Plants not growing in water. e. Leaves with smooth margins and with transparent dots. _Hypericaceae_ 292 e. Leaves neither smooth-edged, nor with transparent dots. _Malvaceae_ 284 a. Stamens ten or fewer in number. b. Stamens of the same number as the petals and opposite them.