Fig 30 2 PLANT GROUP Mosses and other

Fig. 30 -2 PLANT GROUP Mosses and other nonvascular plants Gametophyte Dominant Sporophyte 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 Reduced, dependent on Dominant gametophyte for nutrition Dominant Gymnosperm Sporophyte (2 n) Microscopic female gametophytes (n) inside ovulate cone Sporophyte (2 n) Gametophyte (n) Angiosperm Microscopic female gametophytes (n) inside these parts of flowers Example Microscopic male gametophytes (n) inside pollen cone Sporophyte (2 n) Gametophyte (n) Microscopic male gametophytes (n) inside these parts of flowers Sporophyte (2 n)

Fig. 30 -2 c Seed plants (gymnosperms and angiosperms) Reduced (usually microscopic), dependent on surrounding Gametophyte sporophyte tissue for nutrition Sporophyte Dominant Gymnosperm Microscopic female gametophytes (n) inside ovulate cone Angiosperm Microscopic male gametophytes (n) inside these parts of flowers Example Microscopic male gametophytes (n) inside pollen cone Sporophyte (2 n) Microscopic female gametophytes (n) inside these parts of flowers

Fig. 30 -6 -4 Key Haploid (n) Diploid (2 n) Ovule Ovulate cone Pollen cone Integument Megasporocyte (2 n) Microsporocytes (2 n) Mature sporophyte (2 n) Megasporangium (2 n) Pollen grains (n) MEIOSIS Microsporangia Microsporangium (2 n) Seedling Archegonium Female gametophyte Seeds Food reserves (n) Seed coat (2 n) Embryo (2 n) Sperm nucleus (n) Pollen tube FERTILIZATION Egg nucleus (n) Surviving megaspore (n)

Fig. 30 -5 a Cycas revoluta

Fig. 30 -5 b Ginkgo biloba pollen-producing tree

Fig. 30 -5 c Ginkgo biloba leaves and fleshy seeds

Fig. 30 -5 d Gnetum

Fig. 30 -5 e Ephedra

Fig. 30 -5 f Welwitschia

Fig. 30 -5 g Ovulate cones Welwitschia

Fig. 30 -5 h Douglas fir

Fig. 30 -5 i European larch

Fig. 30 -5 j Bristlecone pine

Fig. 30 -5 k Sequoia

Fig. 30 -5 l Wollemi pine

Fig. 30 -5 m Common juniper

Fig. 30 -8 Tomato Ruby grapefruit Nectarine Hazelnut Milkweed

Fig. 30 -9 Wings Seeds within berries Barbs

Fig. 30 -13 m 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 Taproot (main root) usually present Root system usually fibrous (no main root) 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

Fig. 30 -13 e Orchid

Fig. 30 -13 e 1 Pygmy date palm (Phoenix roebelenii)

Fig. 30 -13 f Lily

Fig. 30 -13 g Barley Anther Stigma Filament Ovary

Fig. 30 -13 h California poppy

Fig. 30 -13 i Pyrenean oak

Fig. 30 -13 j Dog rose

Fig. 30 -13 k Snow pea

Fig. 30 -13 l Zucchini flowers

Fig. 30 -13 b Water lily

Fig. 30 -13 c Star anise

Fig. 30 -13 a Amborella trichopoda

Fig. 30 -7 Stigma Stamen Anther Carpel Style Filament Ovary Petal Sepal Ovule

Table 30 -1 a