9/23/14

1

K: Plantae = The Land Plants II

progymnosperms

seed ferns

Gymnosperms

9/23/14

2

air bladders

Male

Prothallial cells

Female

9/23/14

3

Seed

Pine seedling

longer green -> 8 cotyledons

shorter -> 1st leaves

stem

P: Cycadophyta

Most common species Cycas revoluta + “sago palm” Cycas male

Cycas female

9/23/14

4

P: Ginkgophyta

male female

sperm

P: Coniferophyta juniper

hemlock

Sequoiadendron

white spruce

larch

P: Gnetophyta Ephedra

9/23/14

5

P: Gnetophyta Gnetum

P: Gnetophyta Welwitschia

P: Anthophyta = flowering plants = angiosperms

CA state flower

Eschscholzia californica

9/23/14

6

127-5 mya

Male

Female

9/23/14

7

Seed

Early angiosperm groups

Monocots

Eudicots

9/23/14

8

Fig. 27.13!

Carpel!Fused!margin!

(a)! (b)!

Ovules!

Ovary!

Style!

Stigma!

Flower parts

Fruits

9/23/14

9

xylem

35.10