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Plant Bio > Lab Vocab > Flashcards

Lab Vocab Flashcards

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Biology 101 flashcards
1
Q

Alternate

A

Borne singly along a stem, not opposite

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2
Q

Annual

A

Completing the full cycle of germination to fruiting within a single year and then dying

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3
Q

Axil

A

The angle between one part of a plant and another part, e.g. a branch and a leaf

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4
Q

Basal

A

Arising from or positioned at the base

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5
Q

Beak

A

A prominent terminal projection, especially of a carpel or fruit

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6
Q

Biennial

A

Completing the full cycle of germination to fruiting in more than one, but not more than two years, and then dying

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7
Q

Blade

A

Part of the leaf above the sheath or petiole

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8
Q

Bloom

A

Whitish waxy or powdery coating easily rubbed off

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9
Q

Bract

A

A leaf-like structure, usually different in form from the foliage leaves, associated with an inflorescence or flower

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10
Q

Bulbet

A

A small bulb, especially one growing in a flower cluster

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11
Q

Calyx

A

The outermost floral whorl usually consisting of sepals or a calyx tube and calyx lobes

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12
Q

Capsule

A

A dry fruit formed from two or more united carpels and dehiscing at maturity to release the seeds

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13
Q

Clasping

A

Partially surrounding the stem

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14
Q

Cleft

A

Deeply cut

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15
Q

Corolla

A

The floral whorl inside the calyx, usually consisting of petals or a corolla tube and corolla lobes

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16
Q

Corymb

A

An inflorescence, usually a raceme, in which the flowers, through unequal pedicels, are in one horizontal plane

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17
Q

Creeping

A

Running along the ground and rooting as it goes

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18
Q

Crested

A

Bearing ridges or projections on the surface

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19
Q

Cyme

A

An inflorescence in which each flower, in turn, is formed at the tip of a growing axis, further flowers being formed on branches arising below

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20
Q

Disk

A

The usually disc shaped receptacle of the head in Asteraceae. In composite flowers like Daisy, the central part of the flower head made up of tiny, tubular flowers

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21
Q

Divided (leaf)

A

Cleft to, or almost to, the base or the midrib

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22
Q

Downy

A

Covered with very fine soft hairs

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23
Q

Egg shaped

A

Broader at one end than the other

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24
Q

Elliptical

A

Broadest in the middle and tapering towards the edges

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25
Q

Entire (leaf)

A

Margin unbroken by teeth

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26
Q

Family

A

Group of related plants

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27
Q

Filament

A

Anther bearing stalk of the stamen

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28
Q

Fine-hairy

A

Covered with fine hairs

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29
Q

Genus

A

A group of closely related species

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30
Q

Glands

A

A secretory structure, e.g. a nectary, extra-floral nectary or a gland tipped, hair-like or wart-like organ

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31
Q

Globular

A

A 3-dimensional shape; spherical or orbicular; circular in outline

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32
Q

Halberd-shaped

A

Arrow shaped, but with lobes at the base of the leaf pointing outward

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33
Q

Head

A

A group of flowers joined together in a short, dense terminal cluster, as in the clovers and the members of the Composite family

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34
Q

Indistinguishable

A

Flowers with no visible petal like parts or parts so small that it is difficult to make out number or arrangement

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35
Q

Inflorescence

A

Flowering part of the plant

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36
Q

Introduced

A

Not native to the region

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37
Q

Involucre

A

Circle of bracts below the flower or flower cluster

38
Q

Irregular

A

Flowers where the parts are dissimilar in size, shape, or arrangement

39
Q

Joint

A

A point on a stem where two sections join together, usually resulting in a slight swelling

40
Q

Lance-shaped

A

Broader towards one end and tapering to point on the other, like a medieval lance, typically 3 or more times longer than wide

41
Q

Leaflet

A

One of the separate parts of a divided leaf

42
Q

Lip

A

Upper or lower part of irregular flowers

43
Q

Lobe

A

One of the segments, usually rounded, of a leaf or flower

44
Q

Mealy

A

Covered with small dust-like particles

45
Q

Midrib

A

The central vein of a leaf or leaflet

46
Q

Neutral

A

Without stamens or pistils

47
Q

Oblong

A

Longer than broad with parallel sides

48
Q

Opposite

A

Leaves arranged as pairs on a stem

49
Q

Oval

A

Broadly elliptical

50
Q

Ovary

A

Enlarged base of the pistil that produces the seeds

51
Q

Palate

A

A raised appendage on the lower lip of a corolla which partially or completely closes the throat

52
Q

Palmate

A

Describing a leaf which is divided into several leaflets which arise from the same point

53
Q

Palmately lobed, cleft, or divided

A

Lobed, cleft, or divided so as to give the leaf a palmate configuration

54
Q

Panicle

A

An elongated branched flower cluster

55
Q

Pappus

A

Bristles, hairs on top of the fruit of members of the composite family

56
Q

Perennial

A

With a life span extending over more than two growing seasons

57
Q

Pinnate

A

With the same arrangement as a feather; divided into pinnae; once-compound
Pinnately lobed, cleft, or divided

58
Q

Pistillate

A

Having pistils but no stamens

59
Q

Pith

A

A softer central part of a twig or stem

60
Q

Pod

A

Dry fruit (like a pea pod)

61
Q

Prostrate

A

Lying flat on the ground

62
Q

Raceme

A

An elongated flower cluster with stalked flowers arranged along a central stem

63
Q

Ray

A

One of the stalks of an umbel, in members of the composite family, the petal-like flowers encircling the disk

64
Q

Recurved

A

Curved downward or backward

65
Q

Reflexed

A

Abruptly turned down or backward

66
Q

Regular

A

Having all the parts alike in size and shape

67
Q

Rib

A

Prominent vein of a leaf

68
Q

Rootstock

A

Horizontal underground stem

69
Q

Rosette

A

Small circular cluster of leaves, usually at the base of the plant

70
Q

Runner

A

A slender, prostrate branch

71
Q

Scale

A

A tiny colorless leaf found on some plant stems

72
Q

Sepal

A

Part of the calyx

73
Q

Sheath

A

Thin membrane surrounding the stem

74
Q

Shoot

A

Newly developed stem and leaves

75
Q

Soft-hairy

A

Covered with soft hairs

76
Q

Spadix

A

Fleshy spike of flowers

77
Q

Spathe

A

A large bract enclosing a flower cluster

78
Q

Spike

A

An elongated flower cluster with stalkless flowers arranged along a central stem

79
Q

Spur

A

A pouch-like short to slender, usually hollow extension of some part, usually of a flower

80
Q

Stalk

A

Stem of leaf or flower

81
Q

Staminate

A

Having stamens but no pistils

82
Q

Stipule

A

A small leaflike growth at the base of a leaf stalk

83
Q

Tendril

A

A slender coiling growth used for climbing or support

84
Q

Terminal

A

At the apex or distal end

85
Q

Toothed

A

On leaf, having several small indentations along the leaf margin

86
Q

Trailing

A

Running along the ground without rooting

87
Q

Tuber

A

A stem, usually underground, enlarged as a storage organ and with minute scale-like leaves and buds or “eyes”

88
Q

Umbel

A

A flower cluster in which all flower stalks radiate from the same point, like the ribs of an umbrella

89
Q

Whorled

A

Arranged in a circle around a central point

90
Q

Wing

A

A thin narrow membrane extending along a stem, stalk, or other part

Plant Bio (1 decks)

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