LEAF Flashcards
other plant organ that, along with stems, constitutes the shoot of the plant body. Its principal function is to act as the main site of photosynthesis in a plant.
leaf
The leaf consists of a flattened laminar portion called the
blade
The leaf consists of a stalk and which attaches the blade to the stem
petiole
If the blade is attached directly to the stem, the leaf is described as
sessile
Leaves arise from an apical or lateral bud that is often protected by
bud scales
are small leaf-like structures which develop in pairs on each side of the leaf during the growing season
Stipules
In monocots, the blades are usually narrow whose base, wholly or partly encloses the stem
sheath
Between the blade and the sheath, some monocot plants have appendages such as
auricles and ligules
persistent meristem at the base of the leaf that allows it to grow indefinitely in monocots
true
The most common shapes
linear (thin), lanceolate (like a spear), ovate (oval) and cordate (heart-shaped).
lined with the veins; the middle portion of the blade usually has a prominent central vein
blade or lamina
prominent central vein, while smaller veins radiate from this
midrib
veins are arranged differently in monocots and dicots, explain
Dicots display netted venation while monocots usually have parallel venation.
edge of the blade is called
margin
margin types
toothed, lobed or entire.
leaf tip
apex
part near the petiole is called
leaf base
There are two types of leaves
There are two types of leaves