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rachilla
[ ruh-kil-uh ]
noun
- a small or secondary rachis, as the axis of a spikelet in a grass inflorescence.
rachilla
/ əˈɪə /
noun
- (in grasses) the short stem of a spikelet that bears the florets
rachilla
/ ə-ĭ′ə /
, Plural rachillae ə-ĭ′ŧ
- The stalk that bears the florets in the spikelets of grasses and similar plants, such as rushes and sedges. The rachilla often has a zigzag shape, with florets at each point at which the orientation of the rachilla turns.
51Թ History and Origins
51Թ History and Origins
Origin of rachilla1
Example Sentences
In many-flowered spikelets the rachilla is often jointed and breaks into as many pieces as there are fruits, each piece bearing a glume and pale.
Rachilla not produced beyond the flowers. a.
B. Spikelets one- to indefinite-flowered; in the one-flowered the rachilla frequently produced beyond the flower; rachilla generally jointed above the empty glumes, which remain after the fruiting glumes have fallen.
It frequently extends downwards a little on the rachilla, forming with the latter a swollen callus, which is separated from the free portion by a furrow.
These consist typically of a short axis, the rachilla, almost or quite concealed by several chaffy bracts.
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