Coconuts in Tree
by Bill Barber
Title
Coconuts in Tree
Artist
Bill Barber
Medium
Photograph - Photograph
Description
The coconut we buy in the store does not resemble the coconut you find growing on a coconut palm. An untouched coconut has three layers. The outermost layer, which is typically smooth with a greenish color, is called the exocarp. The next layer is the fibrous husk, or mesocarp, which ultimately surrounds the hard woody layer called the endocarp. The endocarp surrounds the seed. Generally speaking, when you buy a coconut at the supermarket the exocarp and the mesocarp are removed and what you see is the endocarp.
Some scientists like to refer to the coconut as a water dispersal fruit and seed. A seed is the reproductive unit of a flowering plant. From a reproductive point of view, a seed has the “baby” plant inside, with two basic parts: the embryo root (hypocotyl) and the embryo leaves (epicotyl). In the coconut’s case, if you look at one end of the coconut, you’ll see three pores (also called eyes). The coconut seed germinates and a shoot emerges from one of the pores. In addition to the “baby” plant in the seed, there is the food to kick off its life called the endosperm. The endosperm is what makes up most of the seed and, in the coconut’s case, is the yummy white stuff we eat.
The word coconut itself can also be confusing because the word “nut” is contained in the word. A nut can be defined as a one- seeded fruit. With that loose definition, a coconut can also be a nut. However, a coconut is not a true nut. A true nut, such as the acorn, are indehiscent or do not open at maturity to release its seeds. The seeds are released when the fruit wall decays or are digested by an animal.
Uploaded
February 4th, 2015
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