Jim Bidlack - BIO 5354/4354 PLANT ANATOMY Lecture 6 - Flowers I. Flower structure - composed of four whorls of modified leaves (sepals, petals, stamens, and carpels) A. Receptacle - holds it all together B. C. Male and female parts 1. Male (androecium) - stamen: 2. Female (gynoecium) - carpel or pistil: II. Variations in floral structure A. Completeness of flower 1. Complete flower - has all four sets of floral "leaves" 2. Incomplete flower - lacks one or more of the four sets B. Perfectness of flower 1. Perfect - has both male (staminate) and female (pistillate) parts a) Referred to as monoecious 2. Imperfect - lacks either the male or female part a) Referred to as dioecious C. Symmetry of flower
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