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BOT 350 > Angiosperms Terms Review > Flashcards

Angiosperms Terms Review Flashcards

1
Q

“lateral branch” from which spines originate in Cactaceae

A

areole

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2
Q

Showy bract that attracts pollenators; present in Apiaceae

A

spathe

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3
Q

Spike-like inflorescence; present in Apiaceae

A

spadix

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4
Q

present in Boraginaceae (hairs)

A

hispid hairs

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5
Q

habit that uses tendrils for stability rather than roots; much like vining;

A

twining

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6
Q

urn-shaped fused petals; present in most genera of Ericaceae

A

urceolate corolla

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7
Q

a sac that surrounds the achene of plants in the genus Carex

A

Perigynium

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8
Q

a dry one-seeded fruit in which the ovary wall is united with the seed coat, typical of grasses and cereals

A

Caryopsis

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9
Q

inner bract in a Poaceae flower, the two sterile bracts at the base of a spikelet (sterile = not subtending a floret)

A

glume

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10
Q

the stem axis of a spikelet; bears the glumes and florets

A

Rachilla

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11
Q

glume(s) + >1 floret(s)

A

Spikelet

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12
Q

the spikey hair in Poeaceae flower

A

Awn

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13
Q

Outermost bract in Poeaceae flower (boat Shape)

A

Lemma

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14
Q

2 side petals in Papillionoideae and Cercis. Is contained by banner in Papillionoideae and contains banner in Cercis.

A

wing

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15
Q

Largest and outermost petal in Papillionoideae. In Cercis it is below the 2 wing petals.

A

banner

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16
Q

androecium state in which stamens are fused into 2 parts; ex: 9 filaments fused and 1 unfused in Trifolium. Pollinator reward is pollen and nectar.

A

diadelphous

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17
Q

androecium state in which stamens are fused by filaments into 1 single androecium part. ex: Lupinus. Pollinator reward is only pollen.

A

monadelphous

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18
Q

swollen leaf joints that govern the orientation of the leaf; can point leaf towards sun; present on Cercis

A

pulvini

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19
Q

collective term for palea

A

chaff

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20
Q

bracts on receptacle of capitulum; attached below ovary of fls (collective chaff)

A

palea

21
Q

involucral bracts of Asteraceae

A

phyllaries

22
Q

ligulate flowers; ex: Dandilions

A

Liguliflorous capitulum

23
Q

only disk flowers

A

Discoid capitulum

24
Q

disk and ray flowers, ex: Yarrow, Sunflowers

A

Radiate capitulum

25
Q

modified calyx, attached above ovary; pronged, low crown, or bristles

A

pappus

26
Q

(achene); fruit of Asteraceae

A

cypsela

27
Q

“strap shaped” flower, fertile, 5 fused petals, 5 fused anther tube

A

Ligulate flower

28
Q

Fertile, 5 connate petals, 5 fused anther tube

A

Disk flower

29
Q

Sterile, 3 fused petals, ovary with bilobed stigma; found on edges of Radiate capitulum

A

Ray flower

30
Q

“head” of Asteraceae inflorescence

A

capitulum

31
Q

nectary found somewhere other than flower; ex: at base of leaf or petiole (Prunus)

A

extrafloral nectary

32
Q

reward to seed disperser is NOT derived from the ovary

A

Ecological berry

33
Q

Hypanthium attached to base of ovary; superior ovary (peri: below); present in all required genera of Rosaceae

A

Perigynous

34
Q

Hypanthium fused to ovary (epi: upon, gyn: gynoecium) Ex: “maloids”

A

Epigynous

35
Q

describes structure of basic flower; no hypanthium, superior ovary

A

Hypogenous

36
Q

fused calyx, corolla, and androecium; present in Rosaceae, Onagraceae

A

Hypanthium

37
Q

floral structure is open by pores. Ex: anthers in Ericaceae or fruit of Papaver

A

poricidal dehiscence

38
Q

fused perianth that protects fl bud as a deciduous cap. Falls off fl as it opens. Present on Eucalyptus and Eschscholzia

A

calyptra

39
Q

set of bracts associated with clusters of flowers; present on Eriogonum and Asteraceae

A

involucre

40
Q

“swollen knees”, fused stipules that sheathe around stem. present on Polygonaceae: Rumex

A

ocrea

41
Q

style is connected at the bottom of the ovary. Present in Lamiaceae and Boraginaceae

A

gynobasic style

42
Q

distinct top and bottom of perianth

A

bilabiate

43
Q

bottom side of leaf

A

abaxial lf surface

44
Q

upper side of leaf

A

adaxial lf surface

45
Q

specialized stem, leaf, or petiole with threadlike shape used by climbing plants for support

A

tendril

46
Q

modified leaf especially associated with reproductive structure

A

bract

47
Q

perianth parts look similar/the same

A

tepals

48
Q
A

BOT 350 (6 decks)

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