â¢ MORELLO (noun) The noun MORELLO has 2 senses: 1. any of several cultivated sour cherry trees bearing fruit with dark skin and juice. 2. cultivated sour cherry with dark-colored skin and juice. Familiarity information: MORELLO used as a noun is rare.
Petiole. In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole is the transition between the stem and the leaf blade, and usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules.
Leaves are called the food factory of the plants. Leaves produce foods and store the foods for later use. The shape and size of the plants differ from one plant species to another. The leaves help to identify the type of plant species it belongs. The stalk of the leaf is called the Petiole. The leaf blade contains veins and helps to form the structural framework of the leaf. It has a large vein called midrib from which all other veins are extended. Edges of the leaves are called as Margins and they help in the plant identification. Internal leaf structure. The skin of the leaf is called as Epidermis and it contains single layer of cells. Epidermis helps the leaf to protect them from losing lot of moisture.