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Tomentose
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 pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal 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'' 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 different features that vary between both species of ... [...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] |
Trichomes Close Cannabis
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 pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal 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'' 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 different features that vary between both species of plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Botanical Terms
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] |
Cistus Salviifolius
''Cistus salviifolius'', common names sage-leaved rock-rose, salvia cistus or Gallipoli rose, is a shrub of the family Cistaceae. Etymology The genus name ''Cistus'' derives from the Ancient Greek words ''κίσθος'' (''kisthos'') meaning basket, while the species name ''salviifolius'' refers the wrinkled leaves similar to those of the sage. Description ''Cistus salviifolius'' has spreading stems covered by clumpy hairs. This bushy shrub reaches on average in height, with a maximum of . The oval-shaped green leaves are 1 to 4 centimeters long, opposite, reticulate, tomentose on both sides, with a short petiole (2–4 mm).Pignatti S. - Flora d'Italia – Edagricole – 1982. Vol. II, pag. 122. The inflorescence holds one or more round flowers, long-stalked, arranged at the leaf axils. The five white petals have a yellow spot at the base, forming a corolla 4–6 cm in diameter. The stamens are also yellow and the anthers shed abundant yellow pollen. This plant is po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indumentum
In biology, an indumentum (Latin, literally: "garment") is a covering of trichomes (fine "hairs") on a plant Davis, Peter Hadland and Heywood, Vernon Hilton (1963) ''Principles of angiosperm taxonomy'' Van Nostrandpage, Princeton, New Jersey, page 154, or of bristles (rarely scales) of an insect. In plants, indumentum types include: *pubescent *hirsute *pilose *lanate *villous *tomentose *stellate *scabrous *scurfy The indumentum on plants can have a wide variety of functions, including as anchorage in climbing plants (e.g., '' Galium aparine''), in transpiration control, in water absorption ('' Tillandsia''), the reflection of solar radiation, increasing water-repellency (e.g., in the aquatic fern '' Salvinia''), in protection against insect predation, and in the trapping of insects ('' Drosera'', ''Nepenthes'', '' Stylosanthes''). The use of an indumentum on insects can also be pollen-related, as on bees, sensory like whiskers, or for varied other uses including adhesio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cap1033-botao1
"Where U Been?" is a song by American rapper 2 Chainz from his second studio album '' B.O.A.T.S. II: Me Time''. (2013) The song was released as the album's first promotional single on August 1, 2013. It was produced by frequent collaborator Mike Will Made It, and featured a guest appearance by Cap.1. The song peaked on the US ''Billboard'' Bubbling Under R&B/Hip-Hop Singles at number one. Background On August 1, 2013, 2 Chainz premiered the Mike Will Made It-produced "Where U Been?" featuring Cap.1, from his second studio album '' B.O.A.T.S. II: Me Time''. On the same day, it was serviced to DJs as the album's first promotional single. In September 2013, 2 Chainz performed "Where U Been?" on DJ Skee's SKEE Live along with "Netflix". Music video The Sharod Marcus Simpson-directed music video for "Where U Been?" was released on September 11, 2013, the day after the album's US release. The video features a compilation of tour footage from the America's Most Wanted concert tour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosera Capensis Bend
''Drosera'', which is commonly known as the sundews, is one of the largest genera of carnivorous plants, with at least 194 species. 2 volumes. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginous glands covering their leaf surfaces. The insects are used to supplement the poor mineral nutrition of the soil in which the plants grow. Various species, which vary greatly in size and form, are native to every continent except Antarctica.McPherson, S.R. 2008. ''Glistening Carnivores''. Redfern NaturalHistory Productions Ltd., Poole. Charles Darwin performed much of the early research into ''Drosera'', engaging in a long series of experiments with Drosera rotundifolia which were the first to confirm carnivory in plants. In an 1860 letter, Darwin wrote, “…at the present moment, I care more about ''Drosera'' than the origin of all the species in the world.” Both the botanical name (from the Greek δρόσος: ''drosos'' = "dew, de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wait-a-minute Tree
Wait-a-minute tree, wait-a-bit tree, or wait-a-bit plant are common names for a variety of prickly plants that catch onto passers-by. These names come from the fact that the stems or other parts of the plant have numerous hooked thorns that tend to hook onto passers-by; the hooked person must stop ("wait a minute") to remove the thorns carefully to avoid injury or shredded clothing. These names can refer to: * '' Senegalia brevispica'' * ''Senegalia greggii'' * Some species of ''Asparagus'' * '' Caesalpinia decapetala'' * ''Mimosa aculeaticarpa'' See also * Bush lawyer (plant) *'' Smilax australis'', lawyer vine *'' Calamus australis'', lawyer cane * ''Clusia rosea ''Clusia rosea'', the autograph tree, copey, cupey, balsam apple, pitch-apple, and Scotch attorney, is a tropical and sub-tropical flowering plant species in the family Clusiaceae. The name ''Clusia major'' is sometimes misapplied to this species ...'', Scotch attorney * '' Solanum atropurpureum'', five-minute plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spine (botany)
In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called ''spinose teeth'' or ''spinose apical processes''), are hard, rigid extensions or modifications of leaves, roots, stems or buds with sharp, stiff ends, and generally serve the same function: physically deterring animals from eating the plant material. Description In common language the terms are used more or less interchangeably, but in botanical terms, thorns are derived shoots (so that they may or may not be branched, they may or may not have leaves, and they may or may not arise from a bud),Simpson, M. G. 2010. "Plant Morphology". In: ''Plant Systematics, 2nd. edition''. Elsevier Academic Press. Chapter 9.Judd, Campbell, Kellogg, Stevens, Donoghue. 2007. "Structural and Biochemical Characters". In: ''Plant Systematics, a phylogenetic approach, third edition''. Chapter 4. spines are derived from leaves (either the entire leaf or some part of the leaf that has vascular bun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epidermis (botany)
The epidermis (from the Greek ''ἐπιδερμίς'', meaning "over-skin") is a single layer of cells that covers the leaves, flowers, roots and stems of plants. It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients. The epidermis of most leaves shows dorsoventral anatomy: the upper (adaxial) and lower (abaxial) surfaces have somewhat different construction and may serve different functions. Woody stems and some other stem structures such as potato tubers produce a secondary covering called the periderm that replaces the epidermis as the protective covering. Description The epidermis is the outermost cell layer of the primary plant body. In some older works the cells of the leaf epidermis have been regarded as specialized parenchyma cells,Hill, J. Ben; Overholts, Lee O; Popp, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Trichomes Of The Roses
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy. Red pigment made from ochre was one of the first colors used in prehistoric art. The Ancient Egyptians and Mayans colored their faces red in ceremonies; Roman generals had their bodies colored red to celebrate victories. It was also an important color in China, where it was used to color early pottery and later the gates and walls of palaces. In the Renaissance, the brilliant red costumes for the nobility and wealthy were dyed with kermes and cochineal. The 19th century brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachypodium Distachyon Leaf (x250)
''Brachypodium'' is a genus of plants in the grass family, widespread across much of Africa, Eurasia, and Latin America. The genus is classified in its own tribe Brachypodieae. Flimsy upright stems form tussocks. Flowers appear in compact spike-like racemes with 5-25 flowers on each short-stalked spikelet in summer. Leaves are flat or curved. According to an October 18, 2010 issue of "Nature Online" Laura Longo, an archeologist at University of Siena in Italy found evidence of ''Brachypodium'' and cattail (''Typha'' spp.) residues on prehistoric human grinding tools dated 28,000 years ago from Bilancino in central Italy. A related article authored by Anna Revedin, Biancamaria Aranguren, Roberto Becattini, Laura Longo, Emanuele Marconi, Marta Mariotti Lippi, Natalia Skakun, Andrey Sinitsyn, Elena Spiridonova, and Jiří Svoboda, was contemporaneously published in the Proceedings of the National Academy of Sciences of the United States of America and clarifies that the grain res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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