4 Basic Tissue Types:

1. Meristem
1. Apical
2. lateral
2. Ground
1. Parenchyma

i. clorenchyma

ii. phelloderm (inside bark, part of periderm)

2. Collenchyma
3. Sclerenchyma

i. Sclereids

ii. fibers

3. Dermal
1. Epidermal cells

i. Guard cells

4. Vascular
1. Xylem

i. Tracheids

ii. Vessel elements

iii. Also parenchyma for storage and sclerenchyma for support

2. Phloem

i. Sieve cells - gymnosperms

ii. Sieve tube members - angiosperms

iii. Companion cells (actually parenchyma cells)

iv. Also sclerenchyma for support

All plant structures – leaves, stems, roots, fruits, flowers, etc. – will have some combination of the tissues listed above.

There are other “tissues” in plants – bark, for instance

See Table 27.3