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| ** Glossary ** | ||||
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Sinus |
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| An indented area between two lobes of a structure, such as a leaf. A notch. Sinuses may be shallow or deep, broad or narrow. | ||
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| Figure A. Sinuses along edges of oak leaves. (Quercus) |
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| Figure
B. Sinus
at
base
of
leaf
of
large-leaved
aster. (Eurybia macrophylla) |
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| Images and text copyright Arieh Tal, 2017-2022. All rights reserved. |
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