302 COMMON TREES AND SHRUBS 



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Fig. 20 i. Laburnum. 1, winter shoot ; 2, bud-scales and young 

 leaves ; 3, opening buds of leafy shoot ; 4, flowering shoot ; 5, 

 flower in side view, flower-stalk twisted ; 6, flower in front view ; 

 7, vertical section of flower ; 8, floral diagram ; a, alae ; d.s, dwarf 

 shoots ; /;, honey-guides ; k, keel : l.b, latejal bud ; st, standard ; 

 s.t, stamen-trough. 



