GLOSSARY OF BOTANICAL TERMS 
AND 
INDEX TO PART I. 
The numbers refer to the pages where the illustrations appear or wheze 
fuller definitions of the words are given. 
Abortive. Defective or barren; not producing seeds. 
Abrupt base of leaf, 21. 
Abruptly pinnate. Pinnate, without an odd leaflet at the end; even- 
pinnate, 20. 
Acerose. Slender ; needle-shaped, 20. 
Acorn, 27. 
Acuminate. Taper-pointed, 22. 
Acute. Terminating in a well-defined angle, usually less than a 
right angle, 22. 
Adventitious buds, 31. 
Alternate. Not opposite each other; as the leaves of a stem when 
arranged one after the other along the branch, 18. 
Angulated. Edge with such sudden bends as to form angles. 
Annual layer of wood, 13. 
Anther. The essential part of a stamen of a flower; the part which 
contains the pollen, 24. 
Apetalous. Said of a flower which has no corolla, 25, 
Apex. The point or summit, as the point of a leaf. 
Apple-pome. A fruit like the apple, with seeds in horny cells, 27. 
Appressed. Pressed close to the stem or other part, 19. 
Ariled. Seed with a somewhat membranous appendage, sometimes 
surrounding it, and attached to one end. 
Aromatic. With an agreeable odor. 
Arrangement of flowers, 26; of leaves, 18. 
Astringent. That which contracts or draws together muscular 
fiber; the opposite of laxative. 
Auriculate. Furnished with ear-shaped appendages, 21. 
Awl-shaped. Like a shoemaker’s curved awl; subulate, 21. 
Awned. Furnished with a bristle-shaped appendage, 22. 
Axil. The angle between the leafstalk and the twig, 14. 
Axillary. Situated in the axil; as a bud, branch, or flower-cluster 
when in the axil of a leaf, 14, 26, 30. 
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