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heather

(Encyclopedia) heather: see heath, in botany.

Darwin, Sir Francis

(Encyclopedia) Darwin, Sir Francis, 1848–1925, English botanist, assistant to his father, Charles Robert Darwin. He lectured in botany at Cambridge and was foreign secretary of the Royal Society and…

Eichler, August Wilhelm

(Encyclopedia) Eichler, August WilhelmEichler, August Wilhelmouˈg&oobreve;st vĭlˈhĕlm īkhˈlər [key], 1839–87, German botanist. He worked out the symmetry of the parts of a flower and developed a…

Henslow, John Stevens

(Encyclopedia) Henslow, John StevensHenslow, John Stevenshĕnzˈlō [key], 1796–1861, English botanist. He was professor of mineralogy (1822–27) and of botany (1827–61) at Cambridge. Henslow was a…

Barton, Benjamin Smith

(Encyclopedia) Barton, Benjamin Smith, 1766–1815, American physician and botanist, b. Lancaster, Pa., studied at the College of Philadelphia, at Edinburgh, and at Göttingen (M.D., 1789). He taught at…

Pfeffer, Wilhelm

(Encyclopedia) Pfeffer, WilhelmPfeffer, Wilhelmvĭlˈhĕlm pfĕˈfər [key], 1845–1920, German plant physiologist. He was professor of botany successively at the universities of Bonn, Basel, Tübingen, and…

cortex

(Encyclopedia) cortex, in botany, term generally applied to the outer soft tissues of the leaves, stems, and roots of plants. Cortical cells of the leaves and outer layers of nonwoody stems contain…

pith

(Encyclopedia) pith, in botany, core of the stem of most plants. Pith is composed of large, loosely packed food-storage cells. As the stem grows older the pith usually dries out, and in some it…