2. Parallel Venation Parallel venation occurs when multiple primary veins run side by side along the length of the leaf with little or no cross-linking veins. This type is common in monocotyledonous plants (monocots). Characteristics: Veins run parallel to each other from base to tip. The midrib may be less prominent or absent. Minor cross-veins may be present but usually faint or less developed. Examples: Grass (Poaceae family) Banana (Musa spp.) Lily (Lilium spp.) Identification Tips ... Parallel venation : In this type of venation , veins run parallel to each other, e.g., banana, grass, maize, and wheat leaves (monocot plants). Reticulate venation : In this type of venation , veins and veinlets are irregularly distributed in the lamina, forming a network, e.g. peepal, mango and guava leaves (dicot plants). The venation pattern of a leaf is classified as reticulated, parallel , or dichotomous. In reticulated venation , the veins are arranged in a net-like pattern, in that they are all interconnected like the strands of a net. Reticulated venation is the most common venation pattern, and occurs in the leaves of nearly all dicotyledonous Angiosperms, whose embryos have two cotyledons (seed leaves) as in flowering plants such as Maple, Oak, and Rose. In parallel venation , the veins are all smaller ... Venation The arrangement of veins and veinlets on the leaf blade or lamina is called venation . Internally, the vein contains vascular tissues. Conventionally venation is classified into two types namely, Reticulate venation and Parallel venation . I. Reticulate venation In this type of venation leaf contain a prominent midrib from which several secondary veins arise that branch and anastomose like a network. This type of venation is common in all dicot leaves. It is of two types. 1. Pinnately ...
