Phylum Anthophyta Classes

Monocotyledonae

Description: Monocots are unique in that they possess only one nutrient storage location within their bodies, known as the cotyledon, which is located at the plant's base. This is incorporated with a taproot, which branches off into hundreds of smaller roots for easy mineral extraction, and then stored in the cotyledon, which in turn transports it up the plants stems through numerous vascular tissues.


Example:



A lily, or Lilium bulbiferum, is a monocot, as evidenced by its long stem and taproot










Dicotyledonae

Description: Dicots are, as the name suggests, quite similar to monocots in structure. They possess two cotyledons rather than one, however, which gives them a few differences: they have branching veins rather than straight ones, because there is no need for their veins to run in parallel. In addition, the vascular tissues of Dicots are arranged in a circular pattern. Typically, their flowers possess petals or sepals that grow in fives.


Example:

Ruellia caroliniensis, a flower in the bean family. Note the 5 petals and 4 anthers.

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