GLOSSARY 



Achene. A small, dry, indehiscent, one-seeded fruit with usu- 

 ally a thin pericarp. 



Acute. Sharp-pointed. 



Alternate. As opposed to opposite. 



Ament. Synonymous with catkin. A spike consisting of im- 

 perfect flowers with a scale-like bract at the base of each. 



Annual. Of but one season's growth. 



Anther. The part of the stamen which yields the pollen. 



Aril. A fleshy seed covering growing from the cord which 

 attaches the seed to the seed vessel. 



Axil. The angle which the stem forms with a leaf or branch. 



Bloom. A secretion of wax covering the surface of leaf or fruit. 

 Bract. A modified leaf at the base of flower or fruit. 

 Bristle. A stiff, hairlike growth. 



Calyx. The outer and protective floral whorl. 



Capsule. A dry, dehiscent fruit of two or more carpels. 



Carpel. This is the seed-bearing part of the flower. It may be 

 a simple pistil or one of the parts of a compound pistil. 



Catkin. Same as ament. 



Cell. A structure inclosing a cavity. 



Ciliate. With hairy margin. 



Compound. A whole made up of two or more similar parts. 



Connate. The joining of similar organs. Opposite leaves whose 

 bases join. 



Corm. Like a solid bulb. 



Corolla. The inner floral whorl. 



Corymb. A flat-topped or rounded flower cluster with the mar- 

 ginal flowers opening first. 



325 



