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 pedicels arranged 
along the peduncle 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. 
