A. Objectives

B. Plant characteristics

1. Photosynthesis

2. Generic lifecycle (alternation of generations)

a. haploid/diploid

b. mitosis/meiosis

c. overview

II. Plant classification

A. Non- vascular and vascular plants

III. Ancestry

A. The beginning

1. 1st adaptations (as seen in the Bryophytes)

2. cuticle formation

3. jacketed gametes

IV. Plant Divisions

A. Nonvascular plants (Bryophytes)

1. Division Bryophyta

a. Mosses

(1). Lifecycle

(2). Gametophyte stage

(3). Sporophyte stage

b. Liverworts

(1). Asexual reproduction

c. Hornworts

B. Vascular Plants

1. Seedless plants

a. Additional adaptations

(1). Dominant sporophyte stage

(2). vascular tissue

b. Divisions

(1). Division Pterophyta (ferns)

(a). Uses

(b). Lifecycle

i. Sporophyte stage

ii. Gametophyte stage

(2). Division Psilophyta (whisk ferns)

(3). Division Sphenophyta (horsetails)

(4). Division Lycophyta (club mosses)

c. The Carboniferous forests and coal formation

2. Seed bearing (Gymnosperms)

a. Additional adaptations

b. Divisions

(1). Division Coniferphyta (conifers)

(a). Uses

(b). Pine lifecycle

i. Pollination

ii. Fertilization

(2). Division Cycadophyta (cycads)

(3). Division Ginkgophyta (gingkos)

(4). Division Gnetophyta

V. Conclusion