Gender: Female. Usage: Morella is not a popular first name. It is more often used as a girl (female) name. People having the name Morella are in general originating from Ireland, Italy, United States of America.
From Wikipedia, the free encyclopedia. A leaf scar is the mark left by a leaf after it falls off the twig. It marks the site where the petiole attached to the stem. A leaf scar is found where a plant branches. The leaf scar on Ailanthus altissima. Leaf scars are formed naturally at the end of the growing season for deciduous plants when a layer of cells called the absciss layer forms between the petiole and stem. The absciss layer acts as a point of cleavage and the leaf breaks off leaving a cleanly shaped scar.
Leaf Spot. Leaf spot is a generic name for a fungal disease that can afflict almost any shade tree and whose telltale symptom is brown spots on leaves. Size and shape of the spots vary depending on what type of fungus has infected the tree. The color of the spot can also vary--it is frequently brown, but can also be light brown or tan.