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WILDFLOWER/POLLINATOR LAB
Polyclave Key to Pollination Systems
Adapted from: Tyrrell, L. 1989. How is this flower pollinated? Journal of College Science Teaching 18:378-383.

Flower Character Description Pollination System NOT Involved
Symmetry Radial
Bilateral
NOT:
NOT: BT, F-M, F-S, (BU), MO
Shape Tubular
Not Tubular
NOT: WI, BT, F-M
NOT: MO, (BU), (BI), BA
Color White
Yellow
Red
Blue
Dull/Dark
NOT: WI, F-S, (BE), (BI)
NOT: WI, BT, F-M, F-S, MO, BA
NOT: WI, BT, F-M, F-S, (BE), (MO), BA
NOT: WI, FM, FS, (MO), (BI), BA
NOT: BE, BU, (BI)
Odor No Odor
Fragrant
Putrid (rotten meat)
NOT: F-S, MO, BA
NOT: WI, F-S, BI
NOT: WI, MO, BI, BA

Pollination Systems in parentheses are possible, but unlikely.
Key to Pollination Systems abbreviated above:

WI (wind) BI (birds) MO (moths) BE (bees) F-M (bee-like flies)
BA (bats) BU (butterflies BT (beetles) F-S (carrion and dung flies)

Definitions of terms used in Flower Descriptions above:

Radial Symmetry:

- capable of being divided into two equal-appearing halves along more than one lengthwise plane.

Bilateral Symmetry:

- capable of being divided into two equal-appearing halves only by a single lengthwise plane passing through the axis.

Tubular:

- shaped in a tube or funnel shape.

Not-Tubular:

- not shaped in a tube or funnel shape.

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