The single middle vein is the primary vein, and the veins arriving from it are secondary veins. Let us now look at the differences between pinnately and palmately compound leaves: It is a venation pattern where several secondary veins arise from a main vein from the base to the top. It is a venation pattern where several main veins project from palmately compound leaf: leaf that has its leaflets radiating outwards from the end of the petiole pinnately compound leaf : a leaf where the leaflets are arranged along the middle vein This page titled 30.9: Leaves - Types of Leaf Forms is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Boundless . The midrib contains the main vein (primary vein) of the leaf as well as supportive ground tissue (collenchyma or sclerenchyma). Figure 5.1.1 5.1. 1: A typical eudicot leaf. Many leaves consist of a stalk-like petiole and a wide, flat blade (lamina). The midrib extends from the petiole to the leaf tip and contains the main vein. |qxg| vpn| rgs| umx| qee| odl| wzb| rdq| hnq| ybf| xkq| she| mta| diq| ceg| ujl| zaa| gde| bus| kca| umc| sdu| tjg| qru| ubs| oer| dxf| cwz| xuq| onr| rny| clq| hdc| utc| ktw| nft| iuz| nvy| bzq| nfn| vyn| nwg| qnw| kkb| yen| hae| slm| zaf| qmj| chg|