KEY FOR MARCH, APRIL AND MAY 



106 a Flowers 2 in. or more broad ; stamens and pistils num- 



erous Magnolia, p 151 



b Flowers not completely as in a 107 



107 a Flowers irregular, pink or purple, appearing before 



the leaves Cercis. p 170 



b Flowers not completely as in a 108 



108 a Shrubs or trees with spicy bark; flowers yellow, ^4 in. 



or less broad; anthers opening by terminal pores.... 109 

 b Shrubs or trees not completely as in a no 



109 a Flowers in lateral clusters on the branches. .Benzoin. P 154 

 b Flowers in racemes or umbels, usually terminal on the 



branches Sassafras, p 154. 



no a Shrubs with thorns at the base of the leaves; flowers 



about }4 in. long, yellowish Berberis. p 154. 



b Shrubs or trees not completely as in a in 



in a Shrubs 6 ft. or less high; leaves more or less lobed; 



flowers yellow or whitish Ribes. p 162 



b Shrubs or trees not completely as in a 112 



112 a Flowers with petals distinct, not united at base, or petals 



wanting 113 



b Flowers with the corolla more or less tubular, sometimes 



tubular only at the base 146 



113 a Flowers yellow, i in. or more broad, often double 



Kerria. p 164 

 b Flowers not completely as in a 114 



114 a Stamens 10 or less to each flower, or flowers never double 115 

 b Stamens 15 or more, or flowers double 122 



115 a Flowers rose-purple, about } in. long, fragrant 



Daphne, p 189 

 b Flowers not completely as in a 116 



116 a Flowers yellow or yellowish; petals wanting 117 



b Flowers white 120 



117 a Stamens 5-10 118 



b Stamens 4 119 



118 a Stamens 5 or 10; leaves evergreen Ledum. p 195 



b Stamens 8 ; leaves not evergreen Dirca. p 189 



119 a Branches covered with whitish scales or hairs 



Elaeagnus. p 189 

 b Branches covered with reddish or brownish scales 



Hippophae. p 189 



120 a Flowers solitary or 2 together in the axils .... Ilex, p 181 

 b Flowers in panicles or cymes 121 



121 a Shrub 2-5 ft. high ; leaves toothed ; flowers in panicles 



Ceanothus. p 184 

 b Shrub 8 ft. or more high; leaves entire; flowers in 



cymes Cornus alternifolia. p 194 



10 



