Where Is The Margin On A Leaf?

Question

Its For A Project Thats Due This Thursday!!!

Answer 1

The edge of the flat lamina of the leaf is its margin--


The leaf margin is characteristic for a genus and aids in determining the species.

entire: even; with a smooth margin; without toothing

ciliate: fringed with hairs

crenate: wavy-toothed; dentate with rounded teeth, such as Fagus (beech)

dentate: toothed, such as Castanea (chestnut)
coarse-toothed: with large teeth

glandular toothed: with teeth that bear glands.

denticulate: finely toothed

doubly toothed: each tooth bearing smaller teeth, such as Ulmus (elm)

lobate: indented, with the indentations not reaching to the center, such as many Quercus (oaks)

palmately lobed: indented with the indentations reaching to the center, such as Humulus (hop).

serrate: saw-toothed with asymmetrical teeth pointing forward, such as Urtica (nettle)

serrulate: finely serrate

sinuate: with deep, wave-like indentations; coarsely crenate, such as many Rumex (docks)

spiny: with stiff, sharp points, such as some Ilex (hollies) and Cirsium (thistles).

Answer 2

The leaf margin is the edge of a leaf. It may have different patterns: toothed, wavy, lobed, smooth, ...