Oaks are in the division Anthophyta, family Fagaceae, genus Quercus. They are characterized by pendulous catkins, and acorns as fruits. Oaks in California typically occupy drier habitats.
Oblique is an angle that is less than 90 degrees or greater than 90 degrees but NOT 90 degrees. In plant cells it describes the angle of the cross walls of the vascular cells in the vascular bundle.
DIAGRAM: Leaf Apex
PHOTO:
DIAGRAM:
PHOTO: Fucus Oogonium / Fucus OogoniumDIAGRAM:
PHOTO: Moss Capsule Cross Section
DIAGRAM: Pterophyta/Ophioglossales
PHOTO:
Opposite refers to the arrangement of either buds or leaves along the stem. Opposite budding or leaves is two buds or leaves per node.
DIAGRAM: Opposite Leaves
PHOTO:
(substances)
(in soil)
DIAGRAM: Oscillatoria
PHOTO: Oscillatoria / Oscillatoria
DIAGRAM:
DIAGRAM: Ovary Position
PHOTO:
Cross
Section of Ovary /
Cross Section
of Ovary
Narcissus
/
Narcissus
/
Narcissus
/
Narcissus
/
Narcissus
Composite
Flower /
Composite
Flower
DIAGRAM:
PHOTO:
Cross
Section of Ovary /
Cross Section
of Ovary
Narcissus
/
Narcissus
/
Narcissus
(cones)
(of water)