bio 4b: vascular seed plants: gymnosperms & angiosperms · angiosperms – flowering plants 4...

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Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms Gymnosperms: Male cone: microsporophyll pollen or microspore Female cone: megasporophyll ovule or megaspore Phylum Cycadophyta – cycads (sago palm) Phylum Ginkgophyta – Gingko or maidenhair tree Phylum Coniferophyta – conifers or pines; junipers; cypress; cedar Cone

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Page 1: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms

Gymnosperms:

Male cone: microsporophyll pollen or microspore

Female cone: megasporophyll ovule or megaspore

Phylum Cycadophyta – cycads (sago palm)

Phylum Ginkgophyta – Gingko or maidenhair tree

Phylum Coniferophyta – conifers or pines; junipers; cypress; cedar

Cone

Page 2: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

Male or Staminate cone

Wing

Pollen Tube

Page 3: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

Female or Ovulate cone

Phylum Gnetophyta

Ephedra (Morman Tea, Ma Hung)

micropyle

Page 4: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

Welwitschia

Gnetum

Page 5: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

ANGIOSPERMS – FLOWERING PLANTS

4 WHORLS

Calyx (collection of sepals) Outermost whorl

Corolla (collection of petals)

Stamen (anther & filament)

Pistil or carpel (stigma, style & ovary w/ovules) Innermost whorl

Monocotyledon vs dicotyledon

Page 6: Bio 4B: Vascular Seed Plants: Gymnosperms & Angiosperms · ANGIOSPERMS – FLOWERING PLANTS 4 WHORLS Calyx (collection of sepals) Outermost whorl Corolla (collection of petals) Stamen

Lilium anther X-section Lilium ovary X-section

Angiosperms: The Flowering Plantscontent.njctl.org/courses/science/biology/archived...2011/08/04 · Slide 3 / 86 Angiosperms Angiosperms are the flowering seed plants. Angiosperms

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