Hypocotyl
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The hypocotyl is the stem of a germinating seedling, found below the cotyledons and above the radicle.
Diagram of Scouler's willow (Salix scouleriana) seed, indicating position of hypocotyl.
Celeriac
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Celeriac, also called celery root, knob celery, and turnip-rooted celery, is a group of cultivars of Apium graveolens cultivated for their edible bulb-like hypocotyl, and shoots.
Hypocotyl
…through the cotyledon to grow past it. In some plants, the hypocotyl becomes enlarged as a storage organ. Examples include cyclamen, gloxinia and celeriac. In cyclamen this storage organ is called a tuber. One of the widely used assays in the field of photobiology is the investigation of the effect of…
A celeriac hypocotyl sliced in half, and with the greens removed