DIVISION PINOPHYTA - THE CONIFERS

PINUS sp. - MOST ABUNDANT TREES IN THE NORTHERN HEMISPHERE
THIS IS A DIVISION OF EXTREMES

OLDEST - Pinus longaeva
                      BRISTLECONE PINES

TALLEST -Sequoia sempervirens
                       COASTAL REDWOODS

BIGGEST - Sequoia giganteum

DIVISION CHARACTERISTICS

1. HAVE TWO TYPES OF LEAVES

   a. PINE NEEDLES IN FASCICLES

   b. NARROW LEAVES WITH A SMALL POINT, NOT IN FASCICLES

2. EVERGREEN - LEAVES LOST CONTINUOUSLY OVER A PERIOD OF TIME. 
   THE TREE IS NEVER WITHOUT LEAVES

3. REPRODUCTIVE STRUCTURES

   a. NO CONES

   b. BERRIES (JUNIPER)

   c. CONES

4. REPRODUCTIVE CYCLE

   a. SEED CONES ARE SMALL AND SCALES ARE SLIGHTLY SEPARATED

   b. OVULES HAVE A POLLINATION DROPLET

   c. POLLEN REACHES THE POLLINATION DROPLET

d. POLLEN SUCKED INTO OVULE

e. MICROSPORE MOTHER CELL UNDERGOES MEIOSIS (13
   MONTHS)

f. POLLEN TUBE GROWS TOWARD EGG

g. FERTILIZATION OCCURS

h. SEEDS MATURE

i. CONES OPEN

j. SEEDS SHED