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McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Commelinidae of the class Liliopsida (monocotyledons). The order consists of 4 families and about 450 species, some 400 of them belonging to the Restionaceae. The vast majority of the species grow in temperate regions of the Southern Hemisphere. The Restionales are wind- or self-pollinated, with reduced flowers and a single, pendulous, orthotropous ovule in each of the 1–3 locules of the ovary. The Restionaceae are much like the Gramineae in the related order Cyperales and are sometimes referred to as Southern Hemisphere grasses.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Commelinidae of the class Liliopsida (monocotyledons). The order consists of a single family with five species native to Australia, New Zealand, and Tasmania. The plants are small, submersed or partly submersed aquatic annuals with greatly simplified internal anatomy. The leaves are tufted at the base of the stem, and the inflorescence is a terminal head with two to several bracts, each subtending one to several reduced, unisexual flowers. These plants have sometimes been included within the Restionales, but the structural details of the ovary and seed set them apart. They are of no economic significance.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Commelinidae of the class Liliopsida (monocotyledons). The order consists of the family Juncaceae, with about 300 species, and the family Thurniaceae, with only three. Within its subclass the order is marked by its reduced, mostly wind-pollinated flowers and capsular fruits with one to many anatropous ovules per carpel. The flowers have six sepals arranged in two more or less similar whorls, both sets chaffy and usually brown or green. The ovary is tricarpellate, with axile or parietal placentation. The pollen grains are borne in tetrads, and the embryo is surrounded by endosperm. The order is most unusual among higher plants in that, together with at least some members of the Cyperaceae in the related order Cyperales, it has chromosomes with diffuse centromeres.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order consists of 24 families and more than 5000 species, including most of the families that have been referred to the Englerian order Parietales. The largest families are the Flacourtiaceae (about 800 species), Violaceae (about 800 species), Cucurbitaceae (about 900 species), Begoniaceae (about 1000 species), and Passifloraceae (about 650 species). The Cucurbitaceae have often been considered to constitute a distinct order, Cucurbitales, but there is a developing consensus that their relationship is here.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order consists of the single family Lecythidaceae, with about 400 species. They are tropical, woody plants with alternate, entire leaves, valvate sepals, separate petals, numerous centrifugal stamens, and a syncarpous, inferior ovary with axile placentation. Brazil nuts are the seeds of <i>Bertholletia excelsa</i>, a member of the Lecythidaceae.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order consists of three families: the Myrsinaceae, with about 1000 species; the Primulaceae, with about 1000 species; and the Theophrastaceae, with a little more than 100 species. These are plants with sympetalous flowers; that is, the petals are fused by their margins to form a corolla with a basal tube and terminal lobes. The functional stamens are opposite the corolla lobes, and there is a compound ovary that has a single style and two to numerous ovules which usually have two integuments and are on a free-central or basal placenta. The Myrsinaceae and Theophrastaceae are chiefly tropical and subtropical woody plants, but the Primulaceae are mostly herbaceous and are best developed in north temperate regions. Primrose (<i>Primula</i>) and cyclamen are familiar members of the Primulaceae.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order has only a single family, the Diapensiaceae, with about 18 species of herbs and dwarf shrubs in temperate and arctic regions of the Northern Hemisphere. Within its subclass the order is marked by sympetalous flowers (flowers with the petals joined to each other by their margins, at least toward the base, forming a basal tube, cup, or saucer), separate pollen grains, and ovules that have a single integument (unitegmic) and are tenuinucellate (with the nucellus consisting of a single layer of cells covering the micropylar end of the embryo sac). <i>Shortia</i> and <i>Galax</i> genera are sometimes cultivated.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Hamamelidae of the class Magnoliopsida (dicotyledons). The order consists of a single family (Casuarinaceae) and genus (<i>Casuarina</i>), with about 50 species. Native to the southwestern Pacific region, especially Australia, they are sometimes called Australian pine. They are trees with much reduced flowers and green twigs that bear whorls of scalelike, much reduced leaves. Some species are grown as street trees in tropical and subtropical regions.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Hamamelidae of the class Magnoliopsida (dicotyledons). The order consists of a single family with but one genus, <i>Daphniphyllum</i>, containing about 35 species. All are dioecious trees or shrubs native to eastern Asia and the Malay region. The plants produce a unique type of alkaloid (daphniphylline group); they often accumulate aluminum and sometimes produce iridoid compounds. The wood has vessels with scalariform perforations. The leaves are simple and entire, alternate or sometimes closely clustered at the ends of the branches. The flowers are small and inconspicuous, unisexual, regular, and hypogynous. Usually there are 2–6 sepals, or sometimes the sepals are absent; petals are lacking. The pollen is triaperturate, and the pistil has 2(–4) united carpels. <i>Daphniphyllum</i> has sometimes been included in the Euphorbiales of the subclass Rosidae, but structural details such as the very tiny embryo make it highly aberrant there.
Industry:Science
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Hamamelidae of the class Magnoliopsida (dicotyledons). The order consists of a single family, genus, and species, <i>Eucommia ulmoides</i>, of China. It is a simple-leaved tree with reduced, solitary flowers that lack a perianth, and leaves without stipules, the paired basal appendages found on many leaves. The ovary has two unitegmic (with a single integument) ovules and ripens into a one-seeded, winged fruit. It is widely cultivated as an ornamental.
Industry:Science
