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Crossyne Guttata (Amaryllidaceae) (4495116388)
''Crossyne'' is a genus of African plants in the Amaryllis family. Taxonomy and features There are two known species, both of which are native to Cape Province in South Africa: ''Crossyne Salisb''., Gen. Pl.: 116 (1866). *''Crossyne flava'' (W.F.Barker ex Snijman) D.Müll.-Doblies & U.Müll. *'' Crossyne guttata'' (L.) D.Müll.-Doblies & U.Müll.-Doblies, Feddes Repert. 105: 358 (1994) After being included in the genus ''Boophone'' for many decades, ''Crossyne'' was raised to genus status in the 1990s, most conspicuously on the basis that: * ''Crossyne'' leaves undergo the following characteristic metamorphosis, the seedling starting from paired, small, lorate leaves growing more or less erect among competing low vegetation. From the age of some four to six years however, the bulbs become large enough to produce broad, flat, prostrate leaves that compete well for space by growing over small neighbours. In this they differ from ''Boophone'' species, that grow more erectly, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Anthony Salisbury
Richard Anthony Salisbury, FRS (born Richard Anthony Markham; 2 May 1761 – 23 March 1829) was a British botanist. While he carried out valuable work in horticultural and botanical sciences, several bitter disputes caused him to be ostracised by his contemporaries. Life Richard Anthony Markham was born in Leeds, England, as the only son of Richard Markham, a cloth merchant and Elizabeth Laycock. His family included two sisters, including his older sister Mary (b. 1755). One of his sisters became a nun. His mother, was the great grand-daughter of Jonathan Laycock of Shaw Hill. Laycock in turn married Mary Lyte (b. 1537), brother of Henry Lyte, the botanist and translator of the herbal of Dodoens. Of this, he wrote "so I inherit a taste for botany from very ancient blood". He studied at a school near Halifax and by the age of eight had established a passion for plants. He attended medical school at the University of Edinburgh in 1780, where he would have at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boophone
''Boophone'' is a small genus of herbaceous, perennial and bulbous plants in the Amaryllis family (Amaryllidaceae, subfamily Amaryllidoideae.) It consists of two confirmed species distributed across South Africa to Kenya and Uganda. It is closely related to ''Crossyne'', a genus whose species have prostrate leaves. They are drought tolerant but not cold-hardy, and are very poisonous to livestock. Taxonomy ''Boophone'' is the single genus in subtribe Boophoninae, in the Amaryllideae tribe. Phylogeny Boophoninae are placed within Amaryllideae as follows, based on their phylogenetic relationship: Species The list of ''Boophone'' species, with their complete scientific name, authority, and geographic distribution is given below.Royal Botanical Gardens, KewWorld Checklist of Monocotyledons: ''Boophone '' Accessed May 16, 2009. Etymology William Herbert wrote the name of this genus with three different orthographies: "Boophane" in 1821; "Buphane" and "Buphone" in 182 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antihemorrhagic
An antihemorrhagic (antihæmorrhagic) agent is a substance that promotes hemostasis (stops bleeding). It may also be known as a hemostatic (also spelled haemostatic) agent. Antihemorrhagic agents used in medicine have various mechanisms of action: * Systemic drugs work by inhibiting fibrinolysis or promoting coagulation. * Locally acting hemostatic agents work by causing vasoconstriction or promoting platelet aggregation. Medical uses Hemostatic agents are used during surgical procedures to achieve hemostasis and are categorized as hemostats, sealants and adhesives. They vary based on their mechanism of action, composition, ease of application, adherence to tissue, immunogenicity and cost. These agents permit rapid hemostasis, better visualization of the surgical area, shorter operative times, decreased requirement for transfusions, decreased wound healing time and overall improvement in patient recovery time. Types Systemic There are several classes of antihemorrhagic drug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infructescence
Infructescence (fruiting head) is defined as the ensemble of fruits derived from the ovaries of an inflorescence. It usually retains the size and structure of the inflorescence. In some cases, infructescences are similar in appearance to simple fruits. These are called multiple fruits. One example is the infructescence of ''Ananas'', which is formed from the fusion of the berries with receptacle tissues and bracts. The mature infructescence of a grain, such as wheat or maize, is known as an ear. The infructescence of ''Ficus'' is called a syconium Syconium (plural ''syconia'') is the type of inflorescence borne by figs (genus ''Ficus''), formed by an enlarged, fleshy, hollow receptacle with multiple ovaries on the inside surface. In essence, it is really a fleshy stem with a number of flow .... References Fruit morphology {{botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coriaceous
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names. A B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glabrousness
Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, such as alopecia universalis in humans, which causes hair to fall out or not regrow. In botany Glabrousness or otherwise, of leaves, stems, and fruit is a feature commonly mentioned in plant keys; in botany and mycology, a ''glabrous'' morphological feature is one that is smooth and may be glossy. It has no bristles or hair-like structures such as trichomes. In anything like the zoological sense, no plants or fungi have hair or wool, although some structures may resemble such materials. The term "glabrous" strictly applies only to features that lack trichomes at all times. When an organ bears trichomes at first, but loses them with age, the term used is ''glabresce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllotaxis
In botany, phyllotaxis () or phyllotaxy is the arrangement of leaf, leaves on a plant stem. Phyllotactic spirals form a distinctive class of patterns in nature. Leaf arrangement The basic leaf#Arrangement on the stem, arrangements of leaves on a stem are opposite and alternate (also known as spiral). Leaves may also be Whorl (botany), whorled if several leaves arise, or appear to arise, from the same level (at the same Node (botany), node) on a stem. With an opposite leaf arrangement, two leaves arise from the stem at the same level (at the same Node (botany), node), on opposite sides of the stem. An opposite leaf pair can be thought of as a whorl of two leaves. With an alternate (spiral) pattern, each leaf arises at a different point (node) on the stem. Distichous phyllotaxis, also called "two-ranked leaf arrangement" is a special case of either opposite or alternate leaf arrangement where the leaves on a stem are arranged in two vertical columns on opposite sides of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Leaf Morphology
The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular or irregular, may be smooth or bearing hair, bristles or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from the same plant. For example, whether to call leaves on the same tree "acuminate", "lanceolate", or "linear" could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossyne Flava
''Crossyne'' is a genus of African plants in the Amaryllis family. Taxonomy and features There are two known species, both of which are native to Cape Province in South Africa: ''Crossyne Salisb''., Gen. Pl.: 116 (1866). *''Crossyne flava'' (W.F.Barker ex Snijman) D.Müll.-Doblies & U.Müll. *''Crossyne guttata'' (L.) D.Müll.-Doblies & U.Müll.-Doblies, Feddes Repert. 105: 358 (1994) After being included in the genus '' Boophone'' for many decades, ''Crossyne'' was raised to genus status in the 1990s, most conspicuously on the basis that: * ''Crossyne'' leaves undergo the following characteristic metamorphosis, the seedling starting from paired, small, lorate leaves growing more or less erect among competing low vegetation. From the age of some four to six years however, the bulbs become large enough to produce broad, flat, prostrate leaves that compete well for space by growing over small neighbours. In this they differ from ''Boophone'' species, that grow more erectly, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossyne Guttata
''Crossyne'' is a genus of African plants in the Amaryllidaceae, Amaryllis family. Taxonomy and features There are two known species, both of which are native to Cape Province in South Africa: ''Crossyne Salisb''., Gen. Pl.: 116 (1866). *''Crossyne flava'' (W.F.Barker ex Snijman) D.Müll.-Doblies & U.Müll. *''Crossyne guttata'' (L.) D.Müll.-Doblies & U.Müll.-Doblies, Feddes Repert. 105: 358 (1994) After being included in the genus ''Boophone'' for many decades, ''Crossyne'' was raised to genus status in the 1990s, most conspicuously on the basis that: * ''Crossyne'' leaves undergo the following characteristic metamorphosis, the seedling starting from paired, small, Glossary of leaf morphology, lorate leaves growing more or less erect among competing low vegetation. From the age of some four to six years however, the bulbs become large enough to produce broad, flat, prostrate leaves that compete well for space by growing over small neighbours. In this they differ from ''Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black South Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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