BIOB 110CS 1st Edition Lecture 14 Flowers Fruits and Seeds A perfect bisexual flower has both the male and female parts Female parts o Males parts o Carpel or pistil contains the stigma style and ovary Stamen contains the anther and filament Other plants parts are the petal with a sepal underneath it the receptacle at the base of the flower and the peduncle stem Corn is bisexual contains both staminate and carpellate flowers on the same plant Cottonwoods are unisexual staminate and carpellate flowers are on separate plants Fruits Fruits are mature plant ovaries and can be simple or complex Simple o Develops from a single or fused carpels o Simple fleshy fruits Berries have one or more carpels containing one or more seeds Drupes have only one seed enclosed in a pit usually poison to deter animals from digesting this part of the fruit Hesperidiums are berries with a leathery rind Pomes have flesh that comes from petal and sepal basal tissue These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute o Contains all citrus fruits Simple dry fruits Seeds can be dehiscent seeds are released or indehiscent seed stays inside the fruit o A nut is a one seeded fruit with a hard ovary wall Most nuts are not nuts o Almonds coconuts walnuts pecans cashews and pistachios are all drupes o Peanuts are legumes o Brazil nuts and seeds in a capsule Complex o Develop from multiple carpels or flowers Includes strawberries raspberries blackberries pineapple and mulberry
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