The typical fern leaf, often termed a frond, is an elaborate structure composed of numerous leaflets the frond comprises two parts stipe and blade. Frond' is commonly used to identify a large, compound leaf, but if the term botanically refer leaves of ferns, it may be applied smaller and undivided. Frond definition & structure plants gardening fern of a about fernsintroduction to ferns uw green bay. Underlay of a fern science learning hub. The stipe is the leaf stem, stalk or stem petiole.
These four little characters, âââ, âââ, âââ, and âââ, often get confused. Most computer users use just a single character, â-â, the so-called hyphen-minus (the usual minus character you have on your keyboard), which is, technically, different from all four.
Check. 1  The symbol Ë over a letter is commonly pronounced  check  by mathematicians. 2  The typographical name for the symbol is caron or haÄek. 3  The haÄek is used in Äech cohomology and occasionally in other fields. 4  In LaTeX, $\check{x}$ is coded as \check{x} in math mode. In many branches of math, the bar may be used to denote the closure (however it is defined) of a substructure of a mathematical structure. 2  The bar is also used to denote the conjugate of a complex number. 3  The typographical name of the symbol is macron.