KEY FOR JUNE TO NOVEMBER 



47 a Trees usually with thorns on the trunk or branches, i in. 



or more long; branchlets zigzag; flowers greenish 



Gleditsia. p 170 

 b Trees or shrubs not completely as in a 48 



48 a Flowers irregular, not greenish 49 



b Flowers not completely as in a 56 



49 a Flowers yellow or yellowish-white 50 



b Flowers not yellow 53 



50 a Leaflets 3 Laburnum, p 173 



b Leaflets 5-25 51 



51 a Leaflets 8-12, even in number- Caragana. p 173 



b Leaflets 5-25, odd in number 52 



52 a Flowers 3-10 in a raceme; leaflets MJ-% in. long 



Colutea. p 173 

 b Flowers several in a panicle; leaflets i in. or more long 



Sophora. p 173 



53 a Flowers violet-purple, about ^4 in. long. .Amorpha. p 173 

 b Flowers white, pink, or purple, about % in. or more 



long 54 



54 a Flowers white, in panicles 10-20 in. long; tree with 



smooth, gray bark Cladrastis. p 173 



b Shrubs or trees not completely as in a 55 



55 a Trees or shrubs usually with short spines for stipules; 



racemes usually 8 in. or less long Robinia. P 173 



b Shrub not with spines for stipules; racemes often 



10-25 in. long Wistaria, p 173 



56 a Trees, shrubs, or trailing vines with prickles 57 



b Shrubs or trees not with prickles 59 



57 a Leaves doubly compound; small, erect tree. .Aralia. p IQO 

 b Leaves singly compound 58 



58 a Shrubs cultivated for their flowers; leaflets 5 or more 



Rosa, p 166 

 b Shrub cultivated for the flowers ; leaflets 3 



Citrus trifoliata. p 179 

 c Shrubs not cultivated for their flowers Rubus. p 164 



59 a Flowers white, not merely greenish-white 60 



b Flowers not white 63 



60 a Leaflets 3 ; flowers fragrant Citrus trifoliata. p 7/p 



b Leaflets 5 or more 61 



61 a Leaves doubly compound; flowers in racemes 



Gymnocladus. p 170 

 b Leaves singly compound ; flowers in cymes or in 



panicles 62 



62 a Flowers in cymes; ovary inferior Sorbus. p 167 



b Flowers in panicles; ovary superior Sorbaria. p 164. 



63 a Leaflets 3 64 



b Leaflets 5 or more 65 



30 



