BIOL 104 Lecture Notes - Lecture 4: Eudicots, Monocotyledon, Abscission
9 Mar 2020
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Laboratory exercise 4: vegetative morphology: plants have only three vegetative (non-flowering) organs: leaves, stems, and roots. These are stipules: the small flaps at the leaf of each leaflet in the trifoliate leaves. These are stipules: draw both leaf types and label the blade, petiole, leaf base, stipules, and leaflet, describe the venation pattern in the two seedlings, monocot, and eudicot. If you find one have a bi-compound leaf. If they occur singly at a node, the leaf is alternate: and depending on the angle of successive leaves up the stem. Spiral, each successive leaf is arising around the stem less than 180 degrees apart from the previous leaf: distichous leaves up the stem in two alternating ranks 180 degrees apart. In there are two leaves on opposite side of a single node, the leaf arrangement is considered opposite. Identify terminal bud, lateral (axillary) buds, leaf scars, bundle scars (located within a leaf scar), and lenticles (openings for gas exchange)
