The Underground Railroad was a secret network organized by people who helped men, women, and children escape from slavery to freedom. It operated before the Civil War (1861-1865) ended slavery in the United States.
Niger seed. Niger seed oil is obtained from the seeds of Niger plant, which belongs to the Asteraceae family and of the Guizotia genus. The botanical name of the plant is Guizotia abyssinica. The Niger plant is an erect, stout, branched annual herb, grown for its edible seeds and oil.Cultivation for the plant originated in the Ethiopian highlands, and has since spread from Malawi to India.iger seed oil is obtained from the seeds of Niger plant, which belongs to the Asteraceae family and of the Guizotia genus. The botanical name of the plant is Guizotia abyssinica.
Aspergillus niger or A. niger is a fungus and one of the most common species of the genus Aspergillus.. niger causes black mold of onions and ornamental plants. Infection of onion seedlings by A. niger can become systemic, manifesting only when conditions are conducive. A. niger causes a common postharvest disease of onions, in which the black conidia can be observed between the scales of the bulb.