GLOSSARY OF BOTANICAL TERMS 



Achene. — A dry one-seeded indehiscent fruit with the pericarp fitting close- 

 ly around the seed. 



Acuminate. — Gradually tapering to the apex. 



Acute. — Sharp pointed. 



Adnate. — An organ adhering to a contiguous differing one. 



Advextive. — Not indigenous, but apparently becoming naturalized. 



Alternate. — Applied to that form of leaf arrangement in which only one 

 leaf occurs at a node. 



Ament. — A spike of imperfect flowers subtended by scarious bracts, as in 

 willows. Used interchangeably with catkin. 



Anther. — The part of the stamen which contains the pollen. 



Apetalous. — Without a corolla. 



Appressed. — Lying close and flat against. 



Arborescent. — Tree-like in size and habit of growth. 



Aril. — A fleshy organ growing at the point of attachment of a seed to the 

 pericarp. 



Ascending. — Growing obliquely upward, or upcurved. 



Awl-shaped. — Narrow upward from the base to a slender or rigid point. 



A\VN. — A slender bristle-like organ. 



Axil. — The point on the stem immediately above the base of the leaf. 



Axis. — The central line of any organ or support of a group of organs; a 

 stem. 



Axillary. — Borne at, or pertaining to, an axil. 



Baccate. — Berry-like; pulpy. 



Beaked. — Ending in a prolonged tip. 



Berry. — A fruit whose pericarp is wholly pulpy. 



Biennial. — Of two years' duration. 



Bipinnate. — Twice pinnate. 



Blade. — The flat expanded part of a leaf. 



Bract. — A leaf, usually small, subtending a flower or flower-cluster. 



Bracteate. — Having bracts. 



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