Chapter 23 -8 Flashcards
P. conifer characteristics?
monecious
needles for leaves
3 years for seed development
What are microspores?
pollen that develop on male cones which is released when the male dies
What are megaspores?
eggs that form on female cones
P. ginkgoba/maidenhair tree were cultivated by?
buddhists in china
What are P. ginkgoba leaves’ processed for?
ginkgoba (circulation)
P. cycadophyta characteristics?
aka sago palms in lawns
dioecious
140 tropical species
used as food after protein coat removed
What do cycads produce?
large cone like strobili
P. gentophyta characteristics?
70 diverse species
cone resembles flowers and have similar lifestyles
advanced gymnosperms w/ more efficient water transport
What are genetum from p. gentophyta?
tropical vines and shrubs w/ broad leaves that resemble flowering plants
What are ephedra from p. gentophyta?
resemble horsetails w/ joined stem and used for drug ephedine stimulates heart and raises blood pressure