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Streptosolen Jamesonii
''Streptosolen'' is a monotypic genus of flowering plants in the family Solanaceae. It is closely related to the genus Browallia, within which it was originally placed. The single species, ''Streptosolen jamesonii'', the marmalade bush or fire bush, is an evergreen shrub bearing loose clusters of flowers which change gradually from yellow to red as they develop, resulting in an overall appearance resembling Marmalade, orange marmalade (whence the name), found in open woodlands in Colombia, Venezuela, Ecuador, and Peru. The plant has become naturalized in certain localities in Hawaii. The red colouration (at maturity) of the flowers of ''Streptosolen jamesonii'' is typical of that of Ornithophily, bird-pollinated flowers, as also is their lack of a strong scent and secretion of a great deal of nectar. The iridescent green hummingbird species ''Chlorostilbon poortmani'', the short-tailed emerald, is a frequent visitor to the flowers of ''Streptosolen jamesonii'', pollinating them a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Miers (botanist)
John Miers, FRS FLS (25 August 1789 – 17 October 1879. Kensington), knight grand cross of the Order of the Rose, was a British botanist and engineer, best known for his work on the flora of Chile and Argentina. Miers was born in London to a jeweller from Yorkshire, and showed interest in mineralogy and chemistry from an early age. His first published work was a monograph on nitrogen which appeared in the '' Annals of Philosophy'' in 1814. After his marriage in 1818 he travelled to South America to participate in a venture to exploit the mineral resource of Chile, particularly copper. However, after landing in Buenos Aires his wife came down with childbed fever on the trip across country, and he decided not to continue to Chile, instead starting a study of the local flora, which at that time was largely unresearched. In May 1819 Miers arrived in Santiago, Chile, having arranged the clandestine transport of coin presses, and settled at Concón, near Valparaíso. He developed b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorostilbon Poortmani
The short-tailed emerald (''Chlorostilbon poortmani'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Colombia and Venezuela.HBW and BirdLife International (2020) ''Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world'' Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip [.xls zipped 1 MB] retrieved 27 May 2021 It has also been called Poortman's emerald hummingbird.John Gould, Gould, John, ''A Monograph of the Trochilidae or Humming Birds with 360 plates'' (5 volumes, 1849–1861); 'Poortman's Emerald Hummingbird' is Plate 358 in volume 5 (1861) but the lithograph was published in 1860 Taxonomy and systematics Two subspecies of short-tailed emerald are recognized by the South American Classification Committee of the American Ornithological Society, the International Ornithological Committee (IOC), an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyme (botany)
In botany, an inflorescence is a group or cluster of flowers arranged on a plant's stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a main axis ( peduncle) and by the timing of its flowering (determinate and indeterminate). Morphologically, an inflorescence is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. General characteristics Inflorescences are described by many different characteristics including how the flowers are arranged on the peduncle, the blooming order of the flowe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corymb
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial resemblance towards an umbel, and may have a branching structure similar to a panicle. Flowers in a corymb structure can either be parallel, or alternate, and form in either a convex, or flat form. Many species in the Maloideae, such as hawthorns and rowans, produce their flowers in corymbs. The Norway maple and yerba maté are also examples of corymbs. The word ''corymb'' is derived from the Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ... word κόρυμβος, meaning "bunch of flowers or fruit". Image:Schirmtraube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoma
In botany, a stoma (: stomata, from Greek language, Greek ''στόμα'', "mouth"), also called a stomate (: stomates), is a pore found in the Epidermis (botany), epidermis of leaves, stems, and other organs, that controls the rate of gas exchange between the internal air spaces of the leaf and the atmosphere. The pore is bordered by a pair of specialized Ground tissue#Parenchyma, parenchyma cells known as guard cells that regulate the size of the stomatal opening. The term is usually used collectively to refer to the entire stomatal complex, consisting of the paired guard cells and the pore itself, which is referred to as the stomatal aperture. Air, containing oxygen, which is used in cellular respiration, respiration, and carbon dioxide, which is used in photosynthesis, passes through stomata by gaseous diffusion. Water vapour diffuses through the stomata into the atmosphere as part of a process called transpiration. Stomata are present in the sporophyte generation of the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerve (botany)
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] |
Petiole (botany)
In botany, the petiole () is the stalk that attaches the leaf blade to the Plant stem, stem. It is able to twist the leaf to face the sun, producing a characteristic foliage arrangement (spacing of blades), and also optimizing its exposure to sunlight. Outgrowths appearing on each side of the petiole in some species are called stipules. The terms wikt:petiolate, petiolate and wikt:apetiolate, apetiolate are applied respectively to leaves with and without petioles. Description The petiole is a stalk that attaches a leaf to the plant stem. In petiolate leaves the leaf stalk may be long (as in the leaves of celery and rhubarb), or short (for example basil). When completely absent, the blade attaches directly to the stem and is said to be Sessility (botany), sessile or apetiolate. Subpetiolate leaves have an extremely short petiole, and may appear sessile. The broomrape family Orobanchaceae is an example of a family in which the leaves are always sessile. In some other plant group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Leaf Morphology
The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflet (botany), leaflets). The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf#Terminology, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichomes
Trichomes (; ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be Leaf#Surface, pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal cell (biology), cell produced into an elongate hair-like structure called a trichome. The same term is applied to such structures in some cyanobacteria, such as ''Spirulina (dietary supplement), Spirulina'' and ''Oscillatoria''. The trichomes of cyanobacteria may be unsheathed, as in ''Oscillatoria'', or sheathed, as in ''Calothrix''. These structures play an important role in preventing soil erosion, particularly in cold desert climates. The filamentous sheaths form a persistent sticky network that helps maintain soil structure. Plant trichomes Plant trichomes have many diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armando Theodoro Hunziker
Armando Theodoro Hunziker (29 August 1919 – 12 December 2001) was an Argentine botanist. He specialized in the study of systems biology of the family Solanaceae, and contributed with a large number of investigations and publications. Biography Armando Theodoro Hunziker was born 29 August 1919 to a Swiss Argentine family in Chacabuco, Argentina. An aunt taught him the languages German, French, Italian and English. He studied agronomy at the University of Buenos Aires, where he met his mentor, Lorenzo Raimundo Parodi, who supervised his graduate thesis about the genus ''Cuscuta'', a parasite that affects wild and cultivated plants in Argentina and Uruguay. At the age of 22, he received the (José Manuel Altolaguirre Award) and one year later he received the (Eduardo Holmberg Award). In 1945, at the age of 25, Hunziker was nominated curator of the Botanical Museum of the National University of Córdoba, recommended by the Nobel Prize winner in Medicine Bernardo Alb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quechuan Languages
Quechua (, ), also called (, 'people's language') in Southern Quechua, is an indigenous language family that originated in central Peru and thereafter spread to other countries of the Andes. Derived from a common ancestral " Proto-Quechua" language, it is today the most widely spoken pre-Columbian language family of the Americas, with the number of speakers estimated at 8–10 million speakers in 2004,Adelaar 2004, pp. 167–168, 255. and just under 7 million from the most recent census data available up to 2011. Approximately 13.9% (3.7 million) of Peruvians speak a Quechua language. Although Quechua began expanding many centuries before the Incas, that previous expansion also meant that it was the primary language family within the Inca Empire. The Spanish also tolerated its use until the Peruvian struggle for independence in the 1780s. As a result, various Quechua languages are still widely spoken today, being co-official in many regions and the most spoken language in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanish Language In South America
The Spanish language in South America varies within the different countries and regions of the continent. The term "South American Spanish" (Spanish language, Spanish: ''español sudamericano'' or ''español suramericano'') is sometimes used as a broad name for the dialects of Spanish spoken on the continent, but such a term is only ''geographical'' and has little or no ''linguistic'' relevance. Spanish is the most widely spoken language of the South American continent, followed closely by Portuguese language, Portuguese. The diverse Spanish dialects of the continent have no unifying feature to set them apart from non-South American varieties. The Spanish of the Andean Spanish, Andean highlands is historically conservative, having some traits in common with the Spanish of central Mexican Spanish, Mexico, while varieties spoken in Rioplatense Spanish, Argentina and Venezuelan Spanish, Venezuela share some phonological innovations with the Spanish spoken on Caribbean Spanish, Caribb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
