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Eupomatiaceae
''Eupomatia'' is a genus of three flowering shrub species of the Australian continent, constituting the only genus in the ancient family Eupomatiaceae. The Eupomatiaceae have been recognised by most taxonomists and classified in the plant order Magnoliales. The three species of shrubs or small trees grow naturally in the rainforests and humid eucalypt forests of eastern Australia and New Guinea. The type species ''Eupomatia laurina'' was described in 1814 by Robert Brown. Description * Trees or subshrubs rhizomatous with soft starchy basal tubers, indumentum absent or present on the branches * Leaves distichous, simple, entire, penninerved, brochidodromous, petiolate, without stipules with secretory, aromatic idioblasts, stomata paracytic or actinocytic, only on the undersides of leaves * Stems with nodes (5-)7(-11)-lacunar, radii uni- or multicellular, medulla not septate * Plants hermaphrodites * Flowers perfect, cream or red and yellow, 30–40 mm in diameter, actinomo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnoliales
The Magnoliales are an order of flowering plants. Classification The Magnoliales include six families: * Annonaceae (custard apple family, over 2000 species of trees, shrubs, and lianas; mostly tropical but some temperate) * Degeneriaceae (two species of trees found on Pacific islands) * Eupomatiaceae (two species of trees and shrubs found in New Guinea and eastern Australia) * Himantandraceae (two species of trees and shrubs, found in tropical areas in Southeast Asia and Australia) * Magnoliaceae (about 225 species including magnolias and tulip trees) * Myristicaceae (several hundred species including nutmeg) APG system The APG system (1998), APG II system (2003), APG III system (2009), and APG IV system (2016) place this order in the clade magnoliids, circumscribed as follows: In these systems, published by the APG, the Magnoliales are a basal group, excluded from the eudicots. Earlier systems The Cronquist system (1981) placed the order in the subclass Magnoliidae of cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupomatia Barbata
''Eupomatia barbata'', also named small bolwarra, is a species of small shrubs, of the Australian continent ancient plant family Eupomatiaceae. They are endemic to the wet tropics rainforests of northeastern Queensland, between the Cooktown Cooktown is a coastal town and locality in the Shire of Cook, Queensland, Australia. Cooktown is at the mouth of the Endeavour River, on Cape York Peninsula in Far North Queensland where James Cook beached his ship, the Endeavour, for repai ... area and the Ingham area (ca. distance), from sea level to about altitude. North Queensland small bolwarra shrubs grow up to about tall and flower before fully grown from when smaller plants. North Queensland small bolwarra shrubs have had specimens collected since the late 1800s or earlier, however their formal description using this species name was only recently published in 2002 by botanist Laurie W. Jessup. References Magnoliales Magnoliids of Australia Flora of Queensla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupomatia Laurina
''Eupomatia laurina'', commonly named bolwarra, native guava or copper laurel, is a species of plant in the primitive flowering-plant family Eupomatiaceae, endemic to Australia and New Guinea. It grows to between tall, but larger specimens may attain a height of and a trunk diameter of . In Australia, it is found in humid forests of the east coast, from as far south as Nowa Nowa in Victoria, north through New South Wales and Queensland to tropical Cape York Peninsula. It usually grows as an understorey plant in rainforests or humid Eucalypt forests. It has glossy, ovate to elliptic leaves, from long. The branches bear globose to urn-shaped fruits which are green in colour and measure in diameter. They yellow when ripe and contain pale-coloured, edible, jelly-like flesh inside, with many non-edible seeds (similar appearance to guava contents). Germination from fresh seed commences after around three weeks and completes after five weeks, with a high rate of germination. Flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupomatia Bennettii
''Eupomatia bennettii'', commonly named small bolwarra, is a species of shrubs of the Australian continent ancient plant family Eupomatiaceae, found in sub-tropical rainforest in eastern Australia. They grow naturally north from the Nambucca River and are sometimes found in moist gullies dominated by ''Eucalyptus'' trees. Usually seen from 70 cm to 140 cm high. Leaves are hairless, reverse lanceolate 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 ... in shape, 8 to 20 cm long, 2.5 to 5 cm wide. Attractive cream and red flowers form in spring, 25 mm in diameter. The fruit is an obconical berry; starting green then turning a yellowish colour. 2 to 3 cm in diameter. References Magnoliales Magnoliids of Australia Flora of Queensland Flora 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] |
Distichous
In botany, phyllotaxis () or phyllotaxy is the arrangement of leaves on a plant stem. Phyllotactic spirals form a distinctive class of patterns in nature. Leaf arrangement The basic arrangements of leaves on a stem are opposite and alternate (also known as spiral). Leaves may also be whorled if several leaves arise, or appear to arise, from the same level (at the same node) on a stem. With an opposite leaf arrangement, two leaves arise from the stem at the same level (at the same 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 the stem. Examples include various bulbous plants such as ''Boophone''. It also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stipule
In botany, a stipule is an outgrowth typically borne on both sides (sometimes on just one side) of the base of a leafstalk (the petiole). Stipules are considered part of the anatomy of the leaf of a typical flowering plant, although in many species they may be inconspicuous —or sometimes entirely absent, and the leaf is then termed ''exstipulate''. (In some older botanical writing, the term "stipule" was used more generally to refer to any small leaves or leaf-parts, notably prophylls.) The word ''stipule'' was coined by Linnaeus''Concise English Dictionary'' Wordsworth Editions Ltd. 1994, from Latin ''stipula'', straw, stalk. Types of stipules General characteristics The position of stipules on a plant varies widely from species to species, though they are often located near the base of a leaf. Stipules are most common on dicotyledons, where they appear in pairs alongside each leaf. Some monocotyledon plants display stipule-like structures, but only display one per leaf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Idioblast
An idioblast is an isolated plant cell that differs from neighboring tissues. They have various functions such as storage of reserves, excretory materials, pigments, and minerals. They could contain oil, latex, gum, resin, tannin or pigments etc. Some can contain mineral crystals such as acrid tasting and poisonous calcium oxalate or carbonate or silica. Any of the tissue or tissue systems of plants can contain idioblasts. Idioblasts are divided into three main categories: excretory, tracheoid, and sclerenchymatous. Idioblasts can contain biforine cells that form crystals. The chemicals are excreted by the plant and stored in liquid or crystalline form. In bundles they are known as druse and as crystals they can be of raphide eedleform. When the end of an idioblast is broken the crystals or other substance is ejected by internal water pressure. Idioblasts of calcium oxalate may function as a deterrent to herbivores, as a means of sequestering or storing calcium, or as a me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoma
In botany, a stoma (from Greek ''στόμα'', "mouth", plural "stomata"), also called a stomate (plural "stomates"), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange. The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating 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 respiration, and carbon dioxide, which is used in photosynthesis, passes through stomata by gaseous diffusion. Water vapour diffuses through the stomata into the atmosphere in a process called transpiration. Stomata are present in the sporophyte generation of all land plant groups except liverworts. In vascular plants the number, size and distribution of stomata varies widely. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Stem
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, stores nutrients, and produces new living tissue. The stem can also be called halm or haulm. The stem is normally divided into nodes and internodes: * The nodes hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or flowers). Adventitious roots may also be produced from the nodes. * The internodes distance one node from another. The term "shoots" is often confused with "stems"; "shoots" generally refers to new fresh plant growth including both stems and other structures like leaves or flowers. In most plants stems are located above the soil surface but some plants have underground stems. Stems have four main functions which are: * Support for and the elevation of leaves, flowers, and fruits. The stems ke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubers
Tubers are a type of enlarged structure used as storage organs for nutrients in some plants. They are used for the plant's perennation (survival of the winter or dry months), to provide energy and nutrients for regrowth during the next growing season, and as a means of asexual reproduction. ''Stem tubers'' form thickened rhizomes (underground stems) or stolons (horizontal connections between organisms); well known species with stem tubers include the potato and yam. Some writers also treat modified lateral roots (''root tubers'') under the definition; these are found in sweet potatoes, cassava, and dahlias. Terminology The term originates from the Latin , meaning "lump, bump, swelling". Some writers define the term "tuber" to mean only structures derived from stems; others use the term for structures derived from stems or roots., p. 124 Stem tubers A stem tuber forms from thickened rhizomes or stolons. The top sides of the tuber produce shoots that grow into typical stems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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