Post on 17-Jan-2016
Root System Stems Leaves Flowers Other
There are generally two typesFibrous- thin, moderately branching roots
growing from the stem Tap- enlarged, somewhat straight to
tapering plant root that grows vertically downward
Regardless of which types, roots anchor the plant and take in water and nutrients
The stem supports other plants such as the leaves, flowers, and fruit
Two basic types of aboveground stems are woody and herbaceous
The leaf manufactured for for the plant by using light energy
Leaves are useful for identification of plants. The leaf edge (margin), shape, and arrangement are all important in plant identification
The primary function of flowers is the production of seed
A perfect flower contains all male and female parts
Seed develops in the female part of the flower (pistil)
The pistil then enlarges and becomes the fruit
The male part is the stamen and consists of the:Filament that supports the antherAnther that manufactures pollenPollen that is the male sexual reproductive
cell
The female part is the pistil and consists of the Stigma that receives the pollenStyle that is the connection to the ovaryOvary that contains the ovules (female
reproductive cells)
Petals are the colored part of the flower that attract insects or other natural pollinators
All the flower petals together are called the corolla
Sepals function as a protection for the developing flower
The sepals are collectively called the calyx
Endosperm- supplies food for the germinating seed
Embryo- the young plant itself Seed coat- protects the seed
Sometimes the seed coat is very hard and difficult to germinate
Horticulturalist assist germination by scarifying the seed coat or damaging the seed coat to promote germination