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Fig. 30-2 PLANT GROUP Mosses and other nonvascular plants
Ferns and other seedless vascular plants Seed plants (gymnosperms and angiosperms) Reduced, independent (photosynthetic and free-living) Reduced (usually microscopic), dependent on surrounding sporophyte tissue for nutrition Gametophyte Dominant Reduced, dependent on gametophyte for nutrition Sporophyte Dominant Dominant Gymnosperm Angiosperm Sporophyte (2n) Microscopic female gametophytes (n) inside ovulate cone Microscopic female gametophytes (n) inside these parts of flowers Sporophyte (2n) Gametophyte (n) Example Microscopic male gametophytes (n) inside these parts of flowers Microscopic male gametophytes (n) inside pollen cone Sporophyte (2n) Sporophyte (2n) Gametophyte (n)
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Seed plants (gymnosperms and angiosperms)
Fig. 30-2c Seed plants (gymnosperms and angiosperms) Reduced (usually microscopic), dependent on surrounding sporophyte tissue for nutrition Gametophyte Sporophyte Dominant Gymnosperm Angiosperm Microscopic female gametophytes (n) inside ovulate cone Microscopic female gametophytes (n) inside these parts of flowers Microscopic male gametophytes (n) inside these parts of flowers Example Microscopic male gametophytes (n) inside pollen cone Sporophyte (2n) Sporophyte (2n)
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Surviving megaspore (n) Seedling
Fig Key Haploid (n) Ovule Diploid (2n) Ovulate cone Megasporocyte (2n) Integument Pollen cone Microsporocytes (2n) Mature sporophyte (2n) Megasporangium (2n) Pollen grain Pollen grains (n) MEIOSIS MEIOSIS Microsporangia Microsporangium (2n) Surviving megaspore (n) Seedling Archegonium Seeds Female gametophyte Food reserves (n) Sperm nucleus (n) Seed coat (2n) Pollen tube Embryo (2n) FERTILIZATION Egg nucleus (n)
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Fig. 30-5a Cycas revoluta
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Ginkgo biloba pollen-producing tree
Fig. 30-5b Ginkgo biloba pollen-producing tree
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Ginkgo biloba leaves and fleshy seeds
Fig. 30-5c Ginkgo biloba leaves and fleshy seeds
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Fig. 30-5d Gnetum
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Fig. 30-5e Ephedra
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Fig. 30-5f Welwitschia
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Fig. 30-5g Ovulate cones Welwitschia
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Fig. 30-5h Douglas fir
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Fig. 30-5i European larch
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Fig. 30-5j Bristlecone pine
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Fig. 30-5k Sequoia
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Fig. 30-5l Wollemi pine
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Fig. 30-5m Common juniper
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Fig. 30-8 Tomato Ruby grapefruit Nectarine Hazelnut Milkweed
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Fig. 30-9 Wings Seeds within berries Barbs
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Fig. 30-13m Monocot Characteristics Eudicot Characteristics Embryos
One cotyledon Two cotyledons Leaf venation Veins usually parallel Veins usually netlike Stems Vascular tissue usually arranged in ring Vascular tissue scattered Roots Root system usually fibrous (no main root) Taproot (main root) usually present Pollen Pollen grain with one opening Pollen grain with three openings Flowers Floral organs usually in multiples of three Floral organs usually in multiples of four or five
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Fig e Orchid
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Pygmy date palm (Phoenix roebelenii)
Fig e1 Pygmy date palm (Phoenix roebelenii)
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Fig f Lily
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Fig g Barley Anther Stigma Ovary Filament
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Fig h California poppy
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Fig i Pyrenean oak
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Fig j Dog rose
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Fig k Snow pea
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Fig l Zucchini flowers
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Fig b Water lily
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Fig c Star anise
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Fig a Amborella trichopoda
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Stigma Carpel Stamen Anther Style Filament Ovary Petal Sepal Ovule
Fig. 30-7 Stigma Carpel Stamen Anther Style Filament Ovary Petal Sepal Ovule
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Table 30-1a
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