KEY FOR JUNE TO NOVEMBER 



14 a Flowers without a perianth 15 



b Flowers with a perianth 16 



15 a Shrub growing on salt marshes; leaves ovate to oblong 



Iva. p 221 

 b Cultivated tree; leaves round-heart-shaped 



Cercidiphyllum. p 152 



16 a Tree with irregular flowers i in. or more long, often 



spotted; leaves heart-shaped, 3-8 in. broad. Catalpa. p 212 

 b Shrubs or trees not completely as in a 17 



17 a Flowers white, tubular, arranged in compact globose 



heads Cephalanthus. p 213 



b Flowers not completely as in a 18 



18 a Stamens 20-40; flowers white, i in. or more broad 19 



b Stamens 10 or less ; flowers not completely as in a .... 20 



19 a Calyx-lobes toothed, nearly as long as the petals 



Rhodotypos. p 164 

 b Calyx-lobes much smaller than the petals 



Philadelphus. p 162 



20 a Flowers dark purple, 1-2 in. broad Butneria. p 154 



b Flowers not completely as in a 21 



21 a Corolla deeply saucer-shaped, 5-lobed, with 10 pouches 



on the tube Kalmia. p 195 



b Flowers not completely as in a 22 



22 a Flowers greenish, about % in. broad 23 



b Flowers not completely as in a 25 



23 a Leaves thick, evergreen, usually variegated. .Aucuba. P 194 

 b Leaves not evergreen 24 



24 a Prostrate shrub about i ft. high. .Euonymus obovatus. p 182 

 b Erect shrubs or trees Acer, p 182 



25 a Flowers in heads subtended by 4 large bracts usually 



% in. or more long Cornus. p 193 



b Flowers not completely as in a 26 



26 a Stamens 10, or the flowers double Deutzia. p 162 



b Stamens 5 or less 27 



27 a Stamens 2 28 



b Stamens 4 or 5, or wanting 31 



28 a Corolla with an elongated tube and 4 spreading lobes. 29 

 b Corolla deeply 4-lobed, nearly to the base 30 



29 a Shrubs often planted in hedges; flowers not fragrant; 



leaves thick, dark green, ovate to oblong. Ligustrum. p 199 

 b Shrubs not planted in hedges; flowers often fragrant; 



leaves not completely as in a Syringa. p 199 



30 a Leaves 2-4 in. long, lanceolate to ovate; flowers in leafy 



panicles Fontanesia. p 199 



b Leaves 3-8 in. long, oval to oblong; flowers in loose 



panicles Chionanthus. p 199 



28 



