KINGDOM PLANTAE DIVERSITY AND EVOLUTION

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KINGDOM PLANTAE DIVERSITY AND EVOLUTION

• Ferns and Gymnosperms

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NONVASCULAR PLANTS Phylum Bryophyta
mosses VASCULAR PLANTS SEEDLESS PLANTS
Phylum Lycophyta club mosses Phylum
Psilophyta whisk ferns Phylum Sphenophyta
horsetails Phylum Pterophyta true
ferns 12,000 species Carboniferous
origin Sporophyte dominant
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Fern life-cycle
homospory
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Crozier or fiddlehead
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sori clusters of sporangia on sporophyll
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spore
sporangium
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sporophyte
gametophyte
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VASCULAR PLANTS SEED PLANTS Phylum
Cycadophyta Cycads Phylum Ginkgophyta
Ginkgo Phylum Coniferophyta Conifers Phylum
Gnetophyta Ephedra, Gnetum Phylum
Anthophyta Flowering plants
gymnosperrms
angiosperms
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Sporophyte(heterosporous life cycle)microsporan
gium megasporangiumxmicrospores
megasporesx microgametophyte
megagametophytexantheridium archegonium
lsperm eggmm
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Generalized Life Cycle of a Heterosporous Plant
heterospory
2 types of sporangia means 2 types of spores
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For seed plants
Pollen
heterospory
Unfertilized Seed
2 types of sporangia means 2 types of spores
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Pine Life-Cycle
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male or pollen cone
pollen cone
Female or ovulate cone
ovulate cone
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male cone microsporophyll microsporangium
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ovule .mega- sporangium
female cone
scale megasporophyll
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seeds
scale
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Coniferophyta
Yew
Juniper
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Coniferophyta
Bristlecone Pine
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Coniferophyta
Giant Redwood or Sequoia
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Hemlock
Coniferophyta
Spruce
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Coniferophyta
Bald Cypress
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Douglas Fir
Coniferophyta
Fir
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Cycadophyta cycads
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Ginkgophyta Ginkgo biloba
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Gnetophyta Ephedra Mormon tea
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Gnetophyta Gnetum
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Gnetophyta Welwitschia