KEY FOR JUNE TO NOVEMBER 



192 a Vines with tendrils Smilax. p 136 



b Plants not with tendrils 193 



193 a Twining vines often several feet long. . . .Dioscorea. P 137 

 b Not twining vines 194 



194 a Flowers irregular ; ovary inferior 195 



b Flowers regular ; ovary superior 196 



195 a Leaves usually i in. or less broad, usually with whitish 



veins Peramium. p 139 



b Leaves usually 2 in. or more broad, not with whitish 



veins Lysias. p 138 



196 a Flowers arranged in a dense spike 197 



b Flowers not arranged in a dense spike 198 



197 a Leaves all basal Plantago. p 213 



b Leaves not all basal Saururus. p 139 



198 a Flowers numerous in a panicle 199 



b Flowers not in panicles 200 



199 a Leaves oval, 3 in. or more broad; perianth present 



Veratrum. p 133 

 b Leaves 2 in. or less broad ; flowers arranged in spikelets 



Panicum. p 121 



200 a Flowers in umbels; leaves all basal Clintonia. P 135 



b Flowers not in umbels ; leaves not all basal 201 



201 a Flowers % in. or less long, tubular; perianth 6-lobed 



Salomonia. p 136 

 b Flowers % in. or more long; perianth 6-parted 



Uvularia. p 133 

 c Flowers 1-3 in. broad; sepals 5, petal-like; petals 5, 



small, tubular Helleborus viridis. p 152 



202 a Flowers on a spadix ; surrounded by a spathe 203 



b Flowers not completely as in a 204 



203 a Leaves compound with 3 leaflets Arisaema. P 131 



b Leaves simple, arrow-shaped Peltandra. P 131 



204 a Vines with tendrils Sicyos. p 216 



b Plants not with tendrils 205 



205 a Twining vines with leaves and stems very rough 



Humulus. p 14.5 

 b Plants not completely as in a 206 



206 a Leaves compound, composed of distinct leaflets 207 



b Leaves simple with entire, toothed, or deeply incised 



margins 214 



207 a Leaves palmately compound usually with 3 or more 



leaflets 208 



b Leaves not completely as in a 210 



208 a Flowers not in umbels Cannabis. p 145 



b Flowers in umbels 209 



39 



