HORT 202 GENERAL HORTICULTURE LABORATORY Lab 2: Recognition of Plant Structures

INTRODUCTION ROOTS origin function   LEAF   MORPHOLOGY simple leaf compound leaf leaf arrangement   LEAF TYPES  simple leaf compound leaf   MODIFIED LEAVES   STEM MORPHOLOGY    MODIFIED STEMS   TYPICAL FLOWERS   FRUIT PARTS CLASSIFICATION OF FRUIT simple fruit aggregate fruit multiple fruit

LEAF      MORPHOLOGY Simple Leaf tip- the terminal point of the leaf. blade-the flattened, green, expanded portion of a leaf. margin- edge of a leaf. midrib-the most prominent central vein in a leaf. lateral veins-secondary veins in a leaf. petiole-the leaf stalk (connects blade to stem). stipules-leaf-like appendages (at the base of petiole of some leaves).   Simple Leaf  Fiddle Leaf Fig   Compound Leaf leaflet- secondary leaf of a compound leaf.  rachis- an extension of the petiole bearing leaflets. petiolule-the leaflet stalk. petiole-the leaf stalk lateral veins-secondary veins in a leaf. stipules-leaf-like appendages (at the base of petiole of some leaves).   Compound Leaf  Rose   Leaf Arrangement opposite two leaves (a pair) per node, usually opposite each other. Big Periwinkle alternate one leaf per node, usually opposite each other.  Elaeagnus whorled three or more leaves per node, usually opposite each other. Oleander

 

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