KEY FOR JUNE TO NOVEMBER 



590 a Leaves thick and fleshy Sedum. p 160 



b Leaves not thick and fleshy 591 



591 a Leaves rounded-heart-shaped 592 



b Leaves not rounded-heart-shaped 593 



592 a Flowers pale blue to reddish-purple Malva. p 185 



b Flowers white Dalibarda. p 164 



593 a Flowers Vz-% in. broad, blue Linum. p 178 



b Flowers about ^4 in. or less broad, white or whitish.. 594 



594 a Petals 5; stamens 5 Samolus. P 197 



b Petals 6 ; stamens 8-30 Reseda, p 160 



595 a Ovary inferior ; flowers arranged in umbels ; petals 5 ; 



stamens 5 596 



b Ovary superior; flowers not completely as in a 598 



596 a Leaves 3 in a whorl beneath the umbel; leaflets 3-5 



Panax. p 191 

 b Leaves more than 3 ; plants not completely as in a .... 597 



597 a Styles 5 Aralia. p IQO 



b Styles 2, often appearing expanded at the base 



Umbelliferae. p 191 



598 a Climbing or trailing vines 3 ft. or more long 599 



b Erect or decumbent herbs 601 



599 a Two tendrils beneath each corymb. . . .Cardiospermum. p 183 

 b No tendrils beneath the flowers as in a 600 



600 a Flowers % in. or more broad ; leaves with 3 leaflets 



Clematis, p 153 

 b Flowers % in. or less broad; leaves simple, rounded 



Menispermum. p 154. 



601 a Perianth not differentiated into green calyx and colored 



corolla 602 



b Perianth differentiated into green calyx and colored 



corolla 609 



602 a Flowers reddish, about Vs in. broad ; leaves with basal 



lobes Rumex acetosella. p 145 



b Flowers not completely as in a 603 



603 a Flowers about 2 in. broad, borne singly in the axils 



of 2 umbrella-like leaves Podophyllum. p 154 



b Flowers less than 2 in. broad, not borne as in a 604 



604 a All leaves basal Coptis. p 152 



b Leaves not all basal 605 



605 a Flowers usually solitary on elongated stalks 606 



b Flowers in compact or elongated spikes or racemes. . 607 



606 a Leaflets rounded to oblong, somewhat 3-lobed toward 



apex Syndesmon. p 153 



b Leaflets variously toothed, lobed, or divided, not as in a 



Anemone, p 152 



62 



