Ginkgophyta

There is only one species of this phylum still living, Ginkgo biloba, the maidenhair tree. Some people think it is the oldest living genus of the seed plants. Male plants are usually planted as ornamentals because the ripened ovules of the females smell horrible! There are a number of these trees along Pender Street in Chinatown.

69

 

 

 

 

 

 

 

In lab we will hopefully be able to show you the seeds. They have very large embryos (over half an inch in length).

71A

 

 

 

 

 

 

GYMNOSPERM INTRO

CYCADOPHYTA

GNETOPHYTA

CONIFEROPHYTA