528 MR. J. PARKIN ON THE 
shoots lower down the branch (fig. 1, C). Each bears only a pair of foliage 
leaves before the apical flower. This is an interesting case of the tendency to 
transfer the flowering to the lower or lateral shoots, reserving the upper or 
main shoots for vegetative expansion. 
Chimonanthus fragrans.—The less usual mode of flowering in Calycanthus 
floridus, just described, suggests the way in which the manner of flower- 
bearing shown in this monotypic genus may have arisen, This deciduous 
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A B C D 
. Shoot of Calycanthus, bearing solitary terminal flower. 
. Shoot of C. occidentalis, bearing a simple inflorescence of three flowers. 
t, bud of a tertiary floral axis. 
C. Main branch of C. fforidus, bearing several short subordinate leafy shoots 
ending in solitary flowers, and above a pair of vegetative shoots. 
D. Flowering branch of Chimonanthus, showing sessile single flowers without 
foliage and ending above in a pair of vegetative buds. 
Fig. 1. 
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shrub produces its flowers before the leaves. They are borne in sessile 
fashion and singly in the axils of last summer's foliage leaves ; that is, they 
appear just above the leaf-scars on the previous year's shoot (fig. 1, D). Each 
flower has below its perianth a number of bracts, but no foliage leaves are 
produced on this short axis. ‘The flower then is really axillary, except that it 
appears after the foliage leaf subtending the axil has fallen. In fig. 1, C, 
imagine the floral shoots to be divested of their foliage leaves, the internodes 
