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Roots Stems Leaves Flowers Fruits Seeds

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Presentation on theme: "Roots Stems Leaves Flowers Fruits Seeds"— Presentation transcript:

1 Roots Stems Leaves Flowers Fruits Seeds
Plant Organs Roots Stems Leaves Flowers Fruits Seeds

2 Flower Sepals…Calyx Petals…Corolla Stamens…Androecium
anther & filament Pistils…Gynecium stigma, style, ovary (egg)

3 Flower

4 Magnoliaceae Primitive flower - blending of flower parts; spirally arranged fossils, embryology, modern plants Degeneria Carpel - primitive pistil

5 Carpel Formation

6 Placentation Parietal Axial Free Central

7 Number of carpels 1. Lines on the outside of the pistil
2. One stigma lobe per carpel 3. Number of locules (if not free central

8 Flower Symmetry:

9 Inflorescence Types arrangement of flowers on the flowering stem
Solitary - one flower per peduncle Terminal: Axillary:

10 Inflorescence Types arrangement of flowers on the flowering stem
Many Flowered - More than one flower per inflorescence spike: Raceme:

11 Inflorescence Types arrangement of flowers on the flowering stem
Many Flowered - More than one flower per inflorescence Panicle: Much branched Corymb: Outer flowers oldest

12 Inflorescence Types arrangement of flowers on the flowering stem
Many Flowered - More than one flower per inflorescence Cyme: Middle flowers oldest Umbel: All come of Peduncle apex

13 Inflorescence Types arrangement of flowers on the flowering stem
Many Flowered - More than one flower per inflorescence Head: Dense, rounded with many sessile flowers

14 Inflorescence Types Determinate: Indeterminate:
Oldest flowers toward the top Indeterminate: Oldest flowers toward the bottom

15 Inflorescence Types

16 Ovary Position

17 Ovary Position

18 Stem - Branch Bud - embryonic branch

19 Leaves

20 Leaves - Margins

21 Hairs - Glands

22 Leaf Position:

23 Underground Roots/Stems

24 Woody vs Herbaceous Woody - Shrubs (fruticose) Trees
arboreous - well developed trunk arborescent - > 20 feet but main trunk short Vines- climbing with tendrils

25 Woody Perennials Apical Dominance Age of Branch Age of Tree

26 Fruit (Pericarp) ripened ovary
Exocarp, Mesocarp, Endocarp

27 Fruit Types Fleshy: Hip - cluster on achenes in a hypanthium
Pome - from a compound, inferior ovary with a thick & fleshy receptacle

28 Fruit Types Fleshy

29 Fruit Types Dry Indehiscent:
Achene - 1-seeded, connected to the pericarp at a single point Samar (Shizocarp)- 1-seeded winged achene

30 Fruit Types Dry Indehiscent:
Acorn - 1-seeded, with a hard coat & surrounded by a cap of hard bracts Nut - 1-seeded, hard coat

31 Fruit Types Dry Indehiscent

32 Fruit Types Dry Dehiscent:
Capsule - multiple carpeled, opening in various ways Follicle - 1-carpelated fruit splitting down 1 side

33 Fruit Types Dry Dehiscent:
Legume - 1-celled, 1-carpelated, splitting on 2 sides Sillicle (sillique)- short, 2-locular fruit with each half separating from one another with a thin septum

34 Fruit Types Dry Dehiscent

35 Fruit Types Simple - from one ovary Compound Aggregate
from many pistils Accessory fleshy receptacle Multiple from many flowers

36

37 Life Cycle Durations Annual - one year of less Biennial - 2 years
Perennial - more than 2 years

38 Plant Structure Coalescence
Connate - Same kinds of structures coalesce Adnate - Different kinds of structures coalesce

39 Plant Structure Coalescence
Synpetalous - Corolla tube Synsepalous - Calyx tube Apetalous ?

40 Plant Structure Coalescence
Filaments: Monodelphus - all stamens coalesce Diadelphus - 2 stamens coalesce Polydelphus - many stamen coalesce


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