The word "exstipulate" is spelled with the prefix "ex" meaning out of, and the word "stipulate" meaning to make a condition or requirement. The pronunciation is [eks-stip-yuh-leyt], where the first syllable is pronounced with a short "e" sound, and the last syllable has a short "a" sound. This word is not common and may be unfamiliar to some. It is primarily used in botanical terms to describe a leaf that lacks stipules, which are leaf-like structures at the base of a leaf.
Exstipulate is a relatively rare verb that refers to the process or act of producing stipules or small leaf-like structures that occur at the base of a leaf stalk. Stipules are typically found in pairs and are often shaped like miniature leaves. These structures are commonly found in certain plant families and species, particularly in dicotyledonous plants.
Exstipulation can be seen as a developmental process in which stipules are formed, often during the early stages of leaf growth. These structures may vary in size, shape, and color depending on the plant species. Stipules can serve various functions, including support, protection, and attraction of pollinators.
The term "exstipulate" is derived from the combination of the Latin prefix "ex-" meaning "out of" or "without" and the word "stipule." Therefore, "exstipulate" signifies the absence or lack of stipules. It is commonly used in botanical descriptions or discussions to indicate that a particular plant or species does not possess stipules. This condition may be natural or acquired, as stipules can sometimes be reduced or lost throughout evolutionary processes.
In summary, "exstipulate" is a term used in botany to describe the absence of stipules in certain plants or species. It signifies that these plants lack the presence of small leaf-like structures that are often found at the base of a leaf stalk, known as stipules.
In bot., destitute of stipules.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.