Angiosperm Anatomy

Test Vocabulary

1. Anther

• At end of stamen. Produces pollen.

2. Calyx

• The set of sepals

6. Corolla

• The set of petals

8. Filament

• Thin part of stamen that supports the anther.

11. Ovary

• At the base of a carpel. Where seeds develop. Becomes the fruit.

15. Petal

• Non-sexual, often showy part of a flower used to attract pollinators.

16. Pistil

• The set of carpels in a flower. Often used synonymously for “carpel”

17. Pollen

• Released by anther. Produces sperm.

20. Sepals

• Non-sexual flower bud scales. Sometimes showy.

21. Stamen

• The male reproductive structure. Made up of anther and filament.

23. Stigma

• The sticky receptive tip of a carpel.

24. Style

• The “tube” between the stigma and ovary on a carpel

28. Blade

• The flattened, photosynthetic, part of a leaf.

29. Compound leaf

• A leaf divided into leaflets.

36. Palmately compound leaf

• Leaflets radiate from a common point.

39. Petiole

• Leaf stalk

41. Pinnately compound leaf

• Leaflets branch off a mid vein, like the pinna of a feather

44. Simple leaf

• A leaf with a single blade, not divided into leaflets.

47. Vein

• Clump of vascular tissue in leaves

Added: Tendril

• A thin, modified leaf, used for grasping a support

Added: Stomata

• Leaf pores for gas exchange

50. Bark

• Outer layer of stem outside the vascular cambium.

53. Epidermis

• Single surface layer of cells on the outside of a young stem.

54. Internode

• The section of stem between nodes

55. Meristem

• The zone of dividing cells. In stems, it’s in the vascular cambium.

56. Node

• Often swollen point on a stem where leaves and buds attach.

57. Phloem

• Also called “inner bark.” A single layer of live cells outside the vascular cambium that transports plant products through plant

61. Vascular cambium

• Single layer of meristem tissue, produces xylem inside and phloem outside.

63. Xylem

• Stem tissue on the inside of the vascular cambium that conducts water up a plant. The major component of “wood.”

64. Adventitious root

• Roots that arise from somewhere other than the normal root zone

65. Diffuse roots

• Roots divided equally among several roots (no tap root). Can be FIBROUS or FLESHY.

66. Root hair

• Tiny projections near the end of a root that aid in absorption.

Rootcap

• A protective layer of tissue that protects the tender tip of a root and its meristem zone.

68. Taproot

• A root system consisting of one main root, like a carrot.