|
Chloranthaceae
Chloranthaceae is a family of flowering plants (angiosperms), the only family in the order Chloranthales. It is not closely related to any other family of flowering plants, and is among the early-diverging lineages in the angiosperms. They are woody or weakly woody plants occurring in Southeast Asia, the Pacific, Madagascar, Central and South America, and the West Indies. The family consists of four extant genera, totalling about 77 known species according to Christenhusz and Byng in 2016. Some species are used in traditional medicine. The type genus is '' Chloranthus''. The fossil record of the family, mostly represented by pollen such as ''Clavatipollenites,'' extends back to the dawn of the history of flowering plants in the Early Cretaceous, and have been found on all continents. Description Chloranthaceae are fragrant shrubs or herbaceous plants, that only produce side branches on the new growth. The stems are mostly cylindrical, with solid internodes, thickened nodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascarina
''Ascarina'' is an ancient, woody, angiosperm genus. It is a distinct genus of ''Chloranthaceae'' consisting of less than twenty species, found in the Australian region, the Pacific Islands and Madagascar. They can grow up to six metres tall and have a spread of approximately three metres. ''Ascarina'' are usually tropical cloud forest species which need high humidity to thrive, and are vulnerable to both frost and drought. There has been discussion and research on whether or not this genus and its family are primitive, or have become reduced over time. Another controversial topic for the genus is its relation to the '' Clavatipollenites'', a fossilized pollen. Morphology ''Ascarina'' plants are divided into three major species groups, based on the number of stamens per male flower, number of supporting flower bracts and geographic location. The flowers of the ''Ascarina'' species are unisexual, containing one to five stamens in male flowers, and a single carpel in females. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloranthus Fortunei
''Chloranthus'' is a genus of flowering plants in the family Chloranthaceae. It is the type genus of its family. They are perennial herbs or evergreen shrubs. with jointed stems, opposite, simple leaves, and small, inconspicuous flowers in slender, terminal spikes. They are found in countries of East Asia such as China, Japan, and Korea. China uses chloranthus plants for medical purposes. Species * ''Chloranthus angustifolius'' * ''Chloranthus anhuiensis ''Chloranthus'' is a genus of flowering plants in the family Chloranthaceae. It is the type genus of its family. They are perennial herbs or evergreen shrubs. with jointed stems, opposite, simple leaves, and small, inconspicuous flowers in sle ...'' * '' Chloranthus elatior'' * '' Chloranthus fortunei'' * '' Chloranthus henryi'' * '' Chloranthus holostegius'' * '' Chloranthus japonicus'' * '' Chloranthus multistachys'' * '' Chloranthus nervosus'' * '' Chloranthus oldhamii'' * '' Chloranthus serratus'' * '' Chloranthus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedyosmum
''Hedyosmum'' is a genus of flowering plants in the family Chloranthaceae. There are about 40 to 45 species. They are distributed in Central and South America and the West Indies, and one species also occurs in southeastern Asia. They are mostly dioecious, except for '' H. nutans'' and '' H. brenesii'' which are exclusively monoecious, and '' H. scaberrimum'' and '' H. costaricense'' with both monoecious and dioecious individuals. Species * ''Hedyosmum angustifolium'' * ''Hedyosmum anisodorum'' * ''Hedyosmum arborescens'' * ''Hedyosmum bonplandianum'' * ''Hedyosmum brasiliense'' * ''Hedyosmum brenesii'' * ''Hedyosmum burgerianum'' * ''Hedyosmum colombianum'' * ''Hedyosmum correanum'' * ''Hedyosmum costaricense'' * ''Hedyosmum crenatum'' * ''Hedyosmum cuatrecazanum'' * ''Hedyosmum cumbalense'' * ''Hedyosmum dombeyanum'' * ''Hedyosmum domingense'' * ''Hedyosmum gentryi'' * ''Hedyosmum goudotianum'' * ''Hedyosmum huascari'' * ''Hedyosmum intermedium'' * ''Hedyosmum lechleri'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcandra
''Sarcandra'' is a genus of the family Chloranthaceae Chloranthaceae is a family of flowering plants (angiosperms), the only family in the order Chloranthales. It is not closely related to any other family of flowering plants, and is among the early-diverging lineages in the angiosperms. They are ..., containing three species native to Asia. Species * '' Sarcandra glabra'' (Thunb.) Nakai * '' Sarcandra grandifolia'' (Miq.) Subr. & A.N.Henry * '' Sarcandra irvingbaileyi'' Swamy References {{Taxonbar, from=Q9074587 Chloranthaceae Angiosperm genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcandra Glabra
''Sarcandra glabra'' is an herb native to Southeast Asia. It is also known as herba sarcandrae or glabrous sarcandra herb. It's common names include the nine-knotted flower and the bone-knitted lotus. Aromatic oils may be extracted from the leaves. This extract has been shown in mice to reduce immunologic attenuation due to stress. Morphology Leaf blade elliptic or ovate-lanceolate, 6–17 × 2–6 cm, leathery, margin sharply coarsely-serrate. Stamen baculate to terete; thecae shorter than connective. Stigma subcapitate. Fruit globose or ovoid, 3–4 mm in diam. Distribution The plant is distributed in Vietnam, Sri Lanka, Taiwan, Cambodia, Malaysia, India, Japan, Korea, the Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ... and, in China, Jiangxi, Anh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vessel Element
A vessel element or vessel member (also called trachea or xylem vessel) is one of the cell types found in xylem, the water conducting tissue of plants. Vessel elements are typically found in angiosperms (flowering plants) but absent from most gymnosperms such as conifers. Vessel elements are the main feature distinguishing the "hardwood" of angiosperms from the "softwood" of conifers. Morphology Xylem is the tissue in vascular plants that conducts water (and substances dissolved in it) upwards in a plant. There are two kinds of cell that are involved in the actual transport: tracheids and vessel elements. Tracheids & vessel elements make the tracheary elements of xylem.Vessel elements are the building blocks of vessels, which constitute the major part of the water transporting system in those plants in which they occur. Vessels form an efficient system for transporting water (including necessary minerals) from the root to the leaves and other parts of the plant. In secondar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drupe
In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part ( exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') inside. These fruits usually develop from a single carpel, and mostly from flowers with superior ovaries (polypyrenous drupes are exceptions). The definitive characteristic of a drupe is that the hard, lignified stone is derived from the ovary wall of the flower. In an aggregate fruit, which is composed of small, individual drupes (such as a raspberry), each individual is termed a drupelet, and may together form an aggregate fruit. Such fruits are often termed '' berries'', although botanists use a different definition of ''berry''. Other fleshy fruits may have a stony enclosure that comes from the seed coat surrounding the seed, but such fruits are not drupes. Flowering plants that produce drupes include coffee, jujube, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berry (botany)
In botany, a berry is a fleshy fruit without a stone (pit) produced from a single flower containing one ovary. Berries so defined include grapes, currants, and tomatoes, as well as cucumbers, eggplants (aubergines) and bananas, but exclude certain fruits that meet the culinary definition of berries, such as strawberries and raspberries. The berry is the most common type of fleshy fruit in which the entire outer layer of the ovary wall ripens into a potentially edible " pericarp". Berries may be formed from one or more carpels from the same flower (i.e. from a simple or a compound ovary). The seeds are usually embedded in the fleshy interior of the ovary, but there are some non-fleshy exceptions, such as peppers, with air rather than pulp around their seeds. Many berries are edible, but others, such as the fruits of the potato and the deadly nightshade, are poisonous to humans. A plant that bears berries is said to be bacciferous or baccate (a fruit that resembles a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpel
Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) '' pistils'' and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the " female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells. The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridia within the androecium. Flowers that bear a gynoecium but no stamens are call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xylem
Xylem is one of the two types of transport tissue in vascular plants, the other being phloem. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients. The word ''xylem'' is derived from the Ancient Greek word (''xylon''), meaning "wood"; the best-known xylem tissue is wood, though it is found throughout a plant. The term was introduced by Carl Nägeli in 1858. Structure The most distinctive xylem cells are the long tracheary elements that transport water. Tracheids and vessel elements are distinguished by their shape; vessel elements are shorter, and are connected together into long tubes that are called ''vessels''. Xylem also contains two other type of cells: parenchyma and fibers. Xylem can be found: * in vascular bundles, present in non-woody plants and non-woody parts of woody plants * in secondary xylem, laid down by a meristem called the vascular cambium in woody plants * as part of a stelar arra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen
Pollen is a powdery substance produced by seed plants. 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 case of self-pollination, this process takes place from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
