APPENDIX I 361 



KINDS OF FLOWER CLUSTERS 



A. Indeterminate Inflorescence. — Order of blossoming from below 

 upward, or from without inward. 



1. Axillary flowers. Flowers growing in the axils of ordinary 



leaves. 



2. Raceme. Flowers with flower-stalks called /^eA'ceZ.'! arranged 



along the ^erfuncZe or stem in the axils of special (usually 

 pretty small) leaves called bracts. 



3. Corymb. Flowers arranged as in the raceme, but with the 



lower pedicels so lengthened as to make the flower cluster 

 flat or nearly so (as in the hawthorn or the yarrow). 



4. Umbel. Flowers with pedicels of nearly equal length, all 



appearing to spring from a common point, like the ribs of 

 an umbrella. An involucre of bracts usually surrrounds 

 the bases of the pedicels. 



5. Spike. Flowers as in the raceme, but sessile, that is without 



pedicels. 



6. Head. Flowers as in the spike, but the cluster nearly 



globular. 



7. Panicle. Flowers as in the raceme, but the cluster made 



compound by the branching of the peduncle. 



B. Determinate Inflorescence. — Order of blossoming from within 

 outward. 



1. Flower terminal. One flower borne at the summit of the 



stem. 



2. Cyme. Flowers much as in the umbel, but the innermost 



blossoming first. 



