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Mortonia (plant)
''Mortonia'' is a small genus of flowering shrubs known as saddlebushes, sand paper bush or mortonias. These are rough, thorny, hairy shrubs with leathery leaves and panicles of fleshy white to purplish flowers. They bear nutlets containing 1 seed each. They are native to the southwestern United States and northern Mexico, where they are most abundant in dry regions. Selected species: *''Mortonia greggii'' *''Mortonia scabrella'' *''Mortonia sempervirens'' *''Mortonia utahensis ''Mortonia utahensis'' is a species of flowering plant in the family Celastraceae known by the common name Utah mortonia. It is native to the southwestern United States, where it grows in desert and mountain scrub and woodland, often on limest ...'' References External links Jepson Manual Treatment Celastraceae Celastrales genera {{Celastraceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortonia Utahensis
''Mortonia utahensis'' is a species of flowering plant in the family Celastraceae known by the common name Utah mortonia. It is native to the southwestern United States, where it grows in desert and mountain scrub and woodland, often on limestone substrates. It is a broomlike shrub growing erect to a maximum height near 1.2 meters. Its branching stems are white to gray in color and rough-haired. The thick, curling, concave leaves are oval in shape, pointed or rounded at the tip, and up to about 1.5 centimeters long. The inflorescence is a narrow panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ... of many flowers with five rough greenish sepals and five thin white petals a few millimeters long. The fruit is a cluster of nutlets. External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asa Gray
Asa Gray (November 18, 1810 – January 30, 1888) is considered the most important American botanist of the 19th century. His '' Darwiniana'' was considered an important explanation of how religion and science were not necessarily mutually exclusive. Gray was adamant that a genetic connection must exist between all members of a species. He was also strongly opposed to the ideas of hybridization within one generation and special creation in the sense of its not allowing for evolution. He was a strong supporter of Darwin, although Gray's theistic evolution was guided by a Creator. As a professor of botany at Harvard University for several decades, Gray regularly visited, and corresponded with, many of the leading natural scientists of the era, including Charles Darwin, who held great regard for him. Gray made several trips to Europe to collaborate with leading European scientists of the era, as well as trips to the southern and western United States. He also built an extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panicle
A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in partic ...) be pedicellate (having a single stem per flower). The branches of a panicle are often racemes. A panicle may have determinate or indeterminate growth. This type of inflorescence is largely characteristic of grasses such as oat and crabgrass, as well as other plants such as pistachio and mamoncillo. Botanists use the term paniculate in two ways: "having a true panicle inflorescence" as well as "having an inflorescence with the form but not necessarily the structure of a panicle". Corymb A corymb may have a paniculate branching structure, with the lower flowers ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nutlet
A nut is a fruit consisting of a hard or tough nutshell protecting a kernel which is usually edible. In general usage and in a culinary sense, a wide variety of dry seeds are called nuts, but in a botanical context "nut" implies that the shell does not open to release the seed ( indehiscent). Most seeds come from fruits that naturally free themselves from the shell, but this is not the case in nuts such as hazelnuts, chestnuts, and acorns, which have hard shell walls and originate from a compound ovary. The general and original usage of the term is less restrictive, and many nuts (in the culinary sense), such as almonds, pecans, pistachios, walnuts, and Brazil nuts, are not nuts in a botanical sense. Common usage of the term often refers to any hard-walled, edible kernel as a nut. Nuts are an energy-dense and nutrient-rich food source. Botanical definition A seed is the mature fertilised ovule of a plant; it consists of three parts, the embryo which will develop into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celastraceae
The Celastraceae (staff-vine or bittersweet) are a family of 97 genera and 1,350 species of herbs, vines, shrubs and small trees, belonging to the order Celastrales. The great majority of the genera are tropical, with only ''Celastrus'' (the staff vines), ''Euonymus'' (the spindles) and ''Maytenus'' widespread in temperate climates, and '' Parnassia'' (bog-stars) found in alpine and arctic climates. Of the 97 currently recognized genera of the family Celastraceae, 19 are native to Madagascar and these include at least 57 currently recognized species. Six of these 19 genera (''Brexiella'', '' Evonymopsis'', '' Hartogiopsis'', ''Polycardia'', ''Ptelidium'', and ''Salvadoropsis'') are endemic to Madagascar. Genera A complete list of the genera is: * '' Acanthothamnus'' * '' Allocassine'' * '' Anthodon'' * ''Apatophyllum'' * ''Apodostigma'' * ''Arnicratea'' * ''Bequaertia'' * ''Brassiantha'' * '' Brexia'' * ''Brexiella'' * ''Campylostemon'' * ''Canotia'' – crucifixion thorn * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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