Fun with Botany 2009

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1 Fun with Botany 2009

2 Fun with Botany April, 2002

3 Plant Uses and Types Gymnosperms Angiosperms Monocots Dicots

4 Gymnosperms Keep leaves which are either needles or flat scales Seeds are not enclosed Give off sticky substance (resin)

5

6 Angiosperms Monocots Seeds One (1) cotyledon Flowers Flower parts in mutiples of three (3) Leaves Linear, parallel veination Vascular System Scattered bundles Growth Habit Herbaceous to wood-like, no true wood

7 Angiosperms Dicot Seeds Two (2) cotyledons Flowers Flowers parts in mutiples of four (4) or five (5) Leaves Broad, petiole present, net veination Vascular System Ring of vascular bundles Growth Habit Herbaceous or woody

8

9 Plant Classifications Annuals Biennials Perennials

10 Annuals Complete cycle from seed germination to seed production in one growing season, and then die

11 Biennials Produce vegetative structures and food storage organs in the first season. During the second season, flowers, fruit and seed develop to complete the life cycle.

12 Perennials Plants live for many years and typically produce flowers and seeds each year after reaching maturity. If top dies back considered herbaceous. If top persists it is classified as woody.

13 Parts of a Plant Vegetative Reproductive

14 Roots Function Anchor the plant Absorb water and nutrients Storage organ

15 Roots Types Types Taproot Fibrous

16 Roots Cross Section Cross Section Xylem and Phloem Root Hair Epidermis Cortex

17

18 Roots How they grow Root Tip Zone of Elongation Zone of Maturation

19 Fun with Botany 2007

20 Stem Functions Support leaves and buds Carries water, nutrients, and food

21 Stem External Parts Node Internode Buds Types Leaf Flower Location Terminal Lateral/Axillary Adventitious

22 Stem Internal Parts Vascular Bundles Xylem Phloem Cambium Epidermis Cortex Pith Bark

23

24 Modifications of Stems Crown Spurs Rhizomes/Stolons

25 More Modifications of Stems Tuber Bulb Corm

26 Fun with Botany 2007

27 Leaves Functions Primarily responsible for absorbing sunlight for manufacturing plant sugars

28 Leaves External Parts Blade Veins Lobe Midrib Petiole

29 Leaves Internal Parts Waxy layer Upper/Lower epidermis Stomata Guard cells Vein Palisade layer Spongy layer

30

31 Leaves Types Simple Compound

32 Leaves Arrangement Alternate Opposite Whorled

33 Leaves Shapes Leaf blade Apex & bases Margins

34 Leaves - Veination Pinnate veination Feather-like, net veination with lateral veins extending from a central midrib

35 Leaves Veination (con t) Palmate Finger-like, net veination with several major veins diverging from the petioleleaf blade union

36 Leaves Veination (con t) Parallel Principle veins parallel to the axis of the leaf

37 Fun with Botany 2007

38 In the Garden

39 Flowers Parts Petals Sepals Pistils Stamens Photos from Sex in Your Garden by Angela Overy

40 Graphic from Sex in Your Garden by Angela Overy

41 Flowers Types Complete contains all floral parts: sepals, petals, stamens, and pistils Incomplete Lacks one one more of floral parts

42 Graphic from Sex in Your Garden by Angela Overy

43 Flowers Reproductive Perfect Contains both pistils and stamens Differences Graphic from Sex in Your Garden by Angela Overy

44 Flowers Reproductive Differences (con t) Imperfect lacks either pistils or stamens Pistillate contains only pistils Staminate contains only stamens

45 Imperfect Flower Types Monoecious Both staminate and pistillate flowers on the same plant Dioecious Staminate and pistillate flowers occur on separate plants Graphics from Sex in Your Garden by Angela Overy

46 Attracting Pollinators Graphic from Sex in Your Garden by Angela Overy

47 Advertising with Color Graphic from Sex in Your Garden by Angela Overy

48 Advertising with Scents

49 Advertising with Shapes

50 Fruit Types Simple Multiple Aggregate

51 Seeds Parts Seedcoat Endosperm Embryo

52 Seed Germination Factors Affecting Water Light Oxygen Heat

53 Seed Dispersal Wind Water Animals, etc.

54 Seeds Dormancy Scarification Stratification

55 Plant Naming Binomial Nomenclature K kingdom P phylum C class O order F family G genus S species Pyrus calleryana Bradford Rosaceae

56 Plant Processes Photosynthesis Produces food Stores energy Occurs in cells that contain chloroplasts Releases oxygen Uses water

57 Plant Processes (con t) Respiration Uses food for plant energy Releases energy Occurs in all cells Uses oxygen Produces water

58 Factors Affecting Growth Light Quality red and blue best, green is reflected Daylength short day (SD) vs. long day (LD) plants Temperature Affects flowering Affects plant growth Protects plants from blooming at wrong time Increases respiration, transpiration

59 Fun with Botany 2007

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