STEMS AND LEAVES

All about stems and leaves :)

19 cards·by Vain 16

more or less swollen portions of the stem where leaves, branches and buds arise

Nodes

the interbening portion between two consecutive nodes

internodes

sar left by the fallen leaf

Leaf scar

tiny spores plants on stems

Lenticels

occurs between in the petiole and the stem

Bud

cut ends of vascular bundles seem within the leaf scar

Bundle Scars

located at the upper angle formed by the leaf stalk and the stem which is called leaf axil

Axillary bud

located at the tip of the stem

terminal bud

paired leaf like appendages at the base of the petiole

stipules

classification of subterranean stems

annuals, biennials, peremnials

stems that grow underground

subterranean stems

grow above on roots ground

Aerial Roots

Types of aerial stems

Herbaceous and Woody

storage area

cortex

protection, to keep water loss

Epidermis

strengthen the young stem

collenchyma

storage

parenchyma

large central area

pith

boundary of xylem and phloem

cambium