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Karuka
The karuka (''Pandanus julianettii'', also called karuka nut and ''Pandanus'' nut) is a species of tree in the screwpine family (Pandanaceae) and an important regional food crop in New Guinea. The nuts are more nutritious than coconuts, and are so popular that villagers in the New Guinea Highlands, highlands will move their entire households closer to trees for the harvest season. Description The species was originally Species description, described in 1908 by Ugolino Martelli from only a few drupes in the collections of the Royal Botanic Gardens, Kew He was hesitant to describe it as a new species from only that, but the characteristics were so salient he published his description. The tree is dioecious (individual plants either have male flowers or female ones), with male trees uncommon compared to females. It reaches in height, with a grey Trunk (botany), trunk of in diameter and supported by prop roots or flying buttress roots up to forty feet (twelve meters) in length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ugolino Martelli
Ugolino Martelli (1860–1934) was an Italian botanist, biologist, and mycology, mycologist. Martelli is known for his studies of and contributions to the systematics of the tropical genus ''Pandanus'' and his taxonomic definition of the flora of Sardinia. He also specialized in studies of the flora of Tuscany and Malaysia. Martelli's biological research led to the discovery of ''Felis lunensis'' (Martelli's Cat), an extinction, extinct Felidae, felid of the subfamily Felinae. The holotype specimen was first described by Martelli in 1906 and is now preserved in the collections of the University of Florence in Italy. His student Odoardo Beccari, used Martelli's herbarium for his own research on the definition of the monocot genus ''Pandanus''. Martelli was the director of the Botanical Garden of Pisa from 1929 to 1930. In 1905 in Florence, Martelli founded the ''Webbia Journal of Plant Taxonomy and Geography''. Martelli named the journal in honor of Philip Barker Webb (1793– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midrib
A primary vein, also known as the midrib, is the main vascular structure running through the center of a leaf. The primary vein is crucial for the leaf’s efficiency in photosynthesis and overall health, as it ensures the proper flow of materials and structural integrity. It serves several critical functions, including structural support, as the primary vein helps the leaf maintain its shape and structure; food and water transportation, as it contains xylem and phloem tissues that transport water, minerals, and nutrients to and from the leaf; and connection to the stem, as it links the leaf to its vascular system, facilitating the exchange of materials between the leaf and the rest of the plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c .... From the primary vein, secondar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syncarp
Multiple fruits, also called collective fruits, are fruiting bodies formed from a cluster of flowers, the ''inflorescence''. Each flower in the inflorescence produces a fruit, but these mature into a single mass. After flowering, the mass is called an infructescence. Examples are the fig, pineapple, mulberry, osage orange, and jackfruit. In contrast, an aggregate fruit such as a raspberry develops from multiple ovaries of a single flower. In languages other than English, the meanings of "multiple" and "aggregate" fruit are reversed, so that multiple fruits merge several pistils within a single flower. In some cases, the infructescences are similar in appearance to simple fruits. One example is pineapple (''Ananas''), which is formed from the fusion of the berries with receptacle tissues and bracts. As shown in the photograph of the noni, stages of flowering and fruit development in the noni or Indian mulberry (''Morinda citrifolia'') can be observed on a single branch. First ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (botany)
Apertures are areas on the walls of a pollen grain, where the wall is thinner and/or softer. For germination it is necessary that the pollen tube can reach out from the inside of the pollen grain and transport the sperm to the egg deep down in the pistil. The apertures are the places where the pollen tube is able to break through the (elsewhere very tough) pollen wall. The number and configuration of apertures are often very exactly characteristic of different groups of plants. In Gymnosperms, pollen is usually sulcate, i.e. has a single aperture placed distally compared to the placement of the pollen grains in the meiotic tetrad. The largest clade of angiosperms, the Eudicots, usually have three apertures that run from the proximal side of the pollen grain to the distal side: this apertures are named colpi, and the pollen type of the Eudicots The eudicots or eudicotyledons are flowering plants that have two seed leaves (cotyledons) upon germination. The term derives from ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulcerate
Ulcerate is a New Zealand-based extreme metal band formed by guitarist Michael Hoggard and drummer Jamie Saint Merat in 2000. The band have released seven studio albums to date. The band have been featured in numerous articles as one of New Zealand's most prominent extreme metal acts, have toured widely across North America and Europe, and have been compared favourably to bands such as Neurosis and Gorguts. The band's sound has been described as "nauseating, disorienting and gleefully disharmonic", and is characterised by extremely technical death metal with extensive use of dissonance, time signature changes, and complex song structures. History Early days (2000–2005) The core membership of Ulcerate, including Jamie Saint Merat, Michael Hoggard and Mark Seeney, formed in 2000 under the name "Bloodwreath". In early 2002, guitarist Jared Commerer and vocalist James Wallace were added to the line-up while Seeney departed. The band began writing material for its debut recor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echina
Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of sexual reproduction. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics. Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psilate
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Pollen
Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of sexual reproduction. It consists of pollen grains (highly reduced Gametophyte#Heterospory, microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male Conifer cone, cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it Germination, germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and Forensic science, forensics. Pollen in plants is used for transferring Ploidy#Haploid and monoploid, haploid male genetic ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anther
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains sporangium, microsporangia. Most commonly, anthers are two-lobed (each lobe is termed a locule) and are attached to the filament either at the base or in the middle area of the anther. The sterile (i.e. nonreproductive) tissue between the lobes is called the Connective (botany), connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of anthers differs greatly, from a tiny fraction of a millimeter in ''Wolfia'' spp up to five inches (13 centimeters) in ''Canna iridiflora'' and ''Strelitzia nicolai''. The stamens in a flower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsessile
In botany, sessility (meaning "sitting", in the sense of "resting on the surface") is a characteristic of plant organs such as flowers or leaves that have no stalk. Plant parts can also be described as subsessile, that is, not completely sessile. A sessile flower is one that lacks a pedicel (flower stalk). A flower that is not sessile is pedicellate. For example, the genus ''Trillium'' is partitioned into multiple subgenera, the sessile-flowered trilliums ( ''Trillium'' subgen. ''Sessilia'') and the pedicellate-flowered trilliums. The term "sessility" is also used in mycology to describe a fungal fruit body that is attached to or seated directly on the surface of the substrate, lacking a supporting stipe or pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures .... Refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Column
A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. The term ''column'' applies especially to a large round support (the shaft of the column) with a capital and a base or pedestal, which is made of stone, or appearing to be so. A small wooden or metal support is typically called a '' post''. Supports with a rectangular or other non-round section are usually called '' piers''. For the purpose of wind or earthquake engineering, columns may be designed to resist lateral forces. Other compression members are often termed "columns" because of the similar stress conditions. Columns are frequently used to support beams or arches on which the upper parts of walls or ceilings rest. In architecture, "column" refers to such a structural element that also has certain proportional and decorative f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
