Kinds of seed by family:
Carrot family, Apiaceae (Umbelliferae)—carrot, celery, celeriac, dill, parsley, parsnip;
Hemp family, Cannabaceae—hemp;
Dichondra family, Dichondraceae—dichondra;
Geranium family, Geraniaceae—alfilaria;
Mint family, Lamiaceae (Labiatae)—sage, summer savory; benne family, Pedaliaceae—sesame;
Rose family, Rosaceae—little burnet;
Nightshade family, Solanaceae—eggplant, tomato, husk tomato, pepper, tobacco; and
Valerian family, Valerianaceae—cornsalad.
General description.
Germination habit: Epigeal dicot.
Food reserves: Cotyledons; endosperm may or may not be present, depending on the kind.
Shoot system: The hypocotyl elongates, carrying the cotyledons above the soil surface. The epicotyl usually does not show any development within the test period.
Root system: A primary root; secondary roots may or may not develop within the test period, depending on the kind.
Abnormal seedling description.
Cotyledons:
Less than half of the original cotyledon tissue remaining attached.
Less than half of the original cotyledon tissue free of necrosis or decay.
Epicotyl:
Missing. (May be assumed to be present if the cotyledons are intact.)
[Reserved]
Hypocotyl:
Malformed, such as markedly shortened, curled, or thickened.
Deep open cracks extending into the conducting tissue.
Watery.
Root:
None.
Missing or stubby primary root with weak secondary or adventitious roots.
Seedling:
One or more essential structures impaired as a result of decay from primary infection.
Albino.