Gymnospores Flashcards
Why are gymnospores more advanced than moss and ferns
still vascular but NOW HAVE SEEDS, cone bearing
Cycodophyla
very popular in home landscaping
sego palm - zamia infegritola
introduction of secondary growth
Ginkgophyta
gymnosperm; have many deciduous properties (leaves that fall golden)
Ginkgo biloba
preserved in temple grounds in China and Japan
common in herbs - helps with memory
common in urban parts bc of its resistance to air pollution
Seeds in Ginkophyta
attached to spur shoots, crawling sperm
Gnetophyta species
Gnetum, Welwitschia, Ephedra
Gnetum spp
gymnospore, gnetophyta
tropical and subtropical
edible seeds and foliage - large leathery leaves
advanced anatomical wood cell “vessell”
Welwitschia
gymnospore, gnetophyta
bizarre vascular plant
pile of leaves growing around disc
Ephedra spp
gymnospore, gnetophyta
long, used in ancient china
viable treatments for asthma/respiration problems
produce chemical analog of adrenaline (ephedrine)
Coniferophyta
most numerous and widespread gymnospores, aka pinophyta; all perennial, woody, secondary growth, mostly trees some shrubs, used to make paper
Pinus spp
Coniferophyta (Pinophyta) ; adaptated to cold and higher altitudes better than angiosperms
Facicle
pinus spp; cluster of pine needles ( 7 @ base)