"Alnus glutinosa. A, a flowering twig; s, staminate catkins; p, pistillate catkins; B, a group of staminate…
"Ulmus campestris. A, a flowering twig; B, a flower; C, longitudinal section of a flower; D, a fruit."…
The common name of philadelphus coronarius is common mock orange or syringa. The primulaeflorus variety…