| The 80 species denoted by a double asterisk are native species included on the State list of rare, threatened or endangered plants of Maryland. |
| Variant manuscripts should be denoted in the apparatus criticus by single, upper case, bold letters. |
| An isotope of the rare element technetium, denoted Tc, is widely used to form images of the heart, brain, lungs, spleen, and other organs. |
| The positions of the markers are denoted by solid circles along the x-axis. |
| Also known as the quincunx and denoted by the symbol, it is said to represent a harsh or tense relationship based upon incompatibility. |
| On a weather map, a warm front is denoted by a line with red semicircles pointing in the direction of travel. |
