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One hundred years after Camerarius, in 1793, Christian Sprengel (1750–1816) broadened the understanding of flowers by describing the role of nectar guides in pollination, the adaptive floral mechanisms used for pollination, and the prevalence of cross-pollination, even though male and female parts are usually together on the same flower. [90]
The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...
Pierre-Paul Saunier (1751–1818) a French gardener who, in 1785, accompanied the botanist André Michaux to North America where he assisted in the establishment of a garden for the French crown. Félix Delahaye (1767–1829) a French gardener who served on the Bruni d'Entrecasteaux expedition (1791–93) which was sent by the French National ...
Botany, also called plant science or phytology, is the branch of natural science and biology studying plants, especially their anatomy, taxonomy, and ecology. [1] A botanist, plant scientist or phytologist is a scientist who specialises in this field.
Called the "Flower Wizard of California," [3] and "The Pioneer Seed-grower," [4] Shepherd was the first woman in California, and possibly the first woman in the United States, to hybridize flowers. [3] [5] The Theodosia B. Shepherd Company, her seed and bulb business, [6] is considered to be the foundation of California's seed industry. [7]
The flower-bearing part of the plant is usually sharply distinguished from the leaf-bearing part, and forms a branch-system called an inflorescence. [37] Flowers produce two kinds of reproductive cells. Microspores, which divide to become pollen grains, are the male cells; they are borne in the stamens. [57]
Flower-bud enclosed in a two-valved, caducous bract. The alternate leaves are simple, pinnately veined, measuring 125–150 mm (5–6 in) long and wide. They have four lobes, and are heart-shaped or truncate or slightly wedge-shaped at base, entire, and the apex cut across at a shallow angle, making the upper part of the leaf look square ...
The state received its name from that conquistador, who called the peninsula La Pascua Florida in recognition of the verdant landscape and because it was the Easter season, which the Spaniards called Pascua Florida (Festival of Flowers). [2] [3] [4] This area was the first mainland realm of the United States to be settled by Europeans, starting ...