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19 Cards in this Set
- Front
- Back
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3 types of monocot flowers
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panicle, raceme, spike
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rachis
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central portion of all 3 types of monocot flowers; A main axis or shaft, such as the main stem of an inflorescence
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panicle-type
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individual branches extend from the rachis; off of each main branch are smaller branches called pedicels; tip of each pedicel is the spikelet that contains the floral units
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raceme-type
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no branches extending from the rachis, only a pedicel with spikelets
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spike-type
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no branches and no pedicels; spikelets attached directly to the rachis
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spikelet (in each type)
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consists of two glumes and one or more individual florets
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glumes
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pair of empty scale-like bracts; located at the base of the grass spikelet
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rachilla
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attach each floret to the spikelet; A diminutive axis of a spikelet that bears the florets, as in grasses and sedges
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floret
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small flower; actual reproductive structure similar to a dicot flower;in grasses includes the lemma, the palea, and the enclosed reproductive components
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lemma
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bract that usually encloses or partially encloses a flower in the spikelet of the grasses;The outer or lower of the two bracts enclosing one of the flowers within a grass spikelet
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palea
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inner and usually smaller of two scaly bracts immediately subtending the grass flower in the spikelet
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awn
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is an extension of the vein or mid-rib of the lemma
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lodicules
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two small structures located at the base of the pistil that function to open the floret during time of pollination and fertilization
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awnless
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floret without an awn
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awned or bearded
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prominent awns
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awnletted
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monocot with a small awn
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awnless
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floret without an awn
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awned or bearded
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prominent awns
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awnletted
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monocot with a small awn
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