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star-of-Bethlehem, in botany

(Encyclopedia) star-of-Bethlehem, in botany, low, spring-blooming bulbous plant (Ornithogalum umbellatum) of the family Liliaceae (lily family), native to the Mediterranean region but naturalized in…

herbarium

(Encyclopedia) herbarium, collection of dried and mounted plant specimens used in systematic botany. To preserve their form and color, plants collected in the field are spread flat in sheets of…

Dawson, Sir John William

(Encyclopedia) Dawson, Sir John William, 1820–99, Canadian geologist and educator, b. Pictou, N.S., studied at the Univ. of Edinburgh. After serving (1850–55) as superintendent of education in Nova…

Velasco, José María

(Encyclopedia) Velasco, José MaríaVelasco, José Maríahōsāˈ märēˈä vāläsˈkō [key], 1840–1912, Mexican landscape painter; teacher of Diego Rivera. A gifted artisan descended from a family of shawl…

nut, in botany

(Encyclopedia) nut, in botany, a dry one-seeded fruit which is indehiscent (i.e., does not split open along a definite seam at maturity). Among the true nuts are the acorn, chestnut, and hazelnut.…

Notable Scientists: Life Sciences

  Biologists, botanists, geneticists, medical scientists, microbiologists, psychiatrists, psychologists, and zoologists       Related Links Cloning: Facts and Fallacies…

Hooker, Sir William Jackson

(Encyclopedia) Hooker, Sir William Jackson, 1785–1865, English botanist. A leading authority of his time on ferns, he formed a famous herbarium and built up the Glasgow Garden and the Royal Botanic…

John Maurice of Nassau

(Encyclopedia) John Maurice of Nassau, 1604–79, Dutch general and colonial administrator, a prince of the house of Nassau-Siegen; grandnephew of William the Silent. The Dutch West India Company…

rust, in botany

(Encyclopedia) rust, in botany, name for various parasitic fungi of the order Uredinales and for the diseases of plants that they cause. Rusts form reddish patches of spores on the host plant. About…