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Juncus Minutulus
''Juncus minutulus'' is a species of rush (Juncaceae) informallyPer Google search, a formal name is unknown referred to as minute rush, dwarf toad rush and annual rush. Description An annual, resembling and easily confused with a tiny '' Juncus bufonius'' with all parts smaller and with flowers rarely opening (cleistogamous): fruit capsule 2.5-3.0mm, stamens usually (2)3 instead of 6, anthers 1/4-1/3 x filaments (not 1/3-1 x), tepals usually shorter than 4mm, inner tepals acute (not long-tapering), 0-1(2) stem leaves, 1–3cm long. ''J. bufonius'' also has cleistogamous forms that can very much resemble this in these features therefore all features should be examined carefully (such as inner tepal tip shape). Range Europe & North Asia, possibly cosmopolitan but reliable records are limited. Habitat Similar to '' Juncus bufonius'' with which it may grow. Turkey: Wet or temporarily wet, usually open soil, 0–1800 m. Spain: Wet pastures or those in temporarily flooded places, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Émile Jahandiez
Émile Jahandiez (born 17 March 1876 in Mortagne-au-Perche, Orne - died 20 September 1938 in Carqueiranne, Var) was a French botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s .... Abbreviation References {{DEFAULTSORT:Jahandiez, Emile French botanists 1876 births 1938 deaths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Prain
Sir David Prain (11 July 1857 – 16 March 1944) was a Scotland, Scottish botanist who worked in India at the Calcutta Botanical Garden and went on to become Director of the Royal Botanic Gardens, Kew. Life Born to David Prain, a saddler, and his wife Mary Thomson, in Fettercairn, Scotland, in 1857, Prain attended the Fettercairn Parish School and then Aberdeen Grammar School. He then studied medicine at the University of Aberdeen, where he gained his Master of Arts, M.A. in 1878. After teaching for two years at Ramsgate College, he returned to Aberdeen and thence to the University of Edinburgh, earning an MB ChM in 1883 with highest honours. He was demonstrator of anatomy at the College of Surgeons of Edinburgh in 1882 and 1883, and at the University of Aberdeen in 1883 and 1884. In 1884 Prain was recommended to Sir George King (botanist), George King (1840–1909), home on leave from his position as director of the Royal Botanic Garden at Calcutta and looking for a medical s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juncaceae
Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is '' Juncus''. Most of the ''Juncus'' species grow exclusively in wetland habitats. A few rushes, such as '' Juncus bufonius'' are annuals, but most are perennials. Despite the apparent similarity, Juncaceae are not counted among the plants with the vernacular name bulrush. Description The leaves are evergreen and well-developed in a basal aggregation on an erect stem. They are alternate and tristichous (i.e., with three rows of leaves up the stem, each row of leaves arising one-third of the way around the stem from the previous leaf). Only in the genus '' Distichia'' are the leaves distichous. The rushes of the genus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juncus Bufonius
''Juncus bufonius'', known commonly as toad rush, is a widespread flowering plant species complex in the rush family Juncaceae. Distribution Its native range is circumpolar throughout tropical, subtropical, subarctic, and temperate climate areas of the Northern Hemisphere and Southern Hemisphere. It is also widely distributed as an introduced species in suitable habitats worldwide. It grows in moist and muddy places, often in wetlands and riparian areas. In habitats where it is not native and has naturalized it may be considered a weed. The relationship of North America plants to the Eurasian '' Juncus ranarius'' is weakly delineated. Description ''Juncus bufonius'' is an annual monocot that is quite variable in appearance. It is generally a green clumping grasslike rush, with many thin stems wrapped with few threadlike leaves. The flowers are borne in inflorescences and also in the joint where the inflorescence branches off of the stem. It is a grassy flower folded wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleistogamous
Cleistogamy is a type of automatic self-pollination of certain plants that can propagate by using non-opening, self-pollinating flowers. Especially well known in peanuts, peas, and pansies, this behavior is most widespread in the grass family. However, the largest genus of cleistogamous plants is ''Viola''. Cleistogamy is promoted in the tomato plant by a modification of floral structures. This modification includes formation of a stigma enclosing floral structure. The more common opposite of cleistogamy, or "closed marriage", is called chasmogamy, or "open marriage". Virtually all plants that produce cleistogamous flowers also produce chasmogamous ones.Meeuse, Bastiaan and Sean Morris. 1984. The sex life of flowers. New York, NY: Facts on File Publishers. pp 110-111. The principal advantage of cleistogamy is that it requires fewer plant resources to produce seeds than does chasmogamy, because development of petals, nectar and large amounts of pollen is not required. This eff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
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] |
Tepal
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very similar appearance), as in ''Magnolia'', or because, although it is possible to distinguish an outer whorl of sepals from an inner whorl of petals, the sepals and petals have similar appearance to one another (as in ''Lilium''). The term was first proposed by Augustin Pyramus de Candolle in 1827 and was constructed by analogy with the terms "petal" and "sepal". (De Candolle used the term ''perigonium'' or ''perigone'' for the tepals collectively; today, this term is used as a synonym for ''perianth''.) p. 39. Origin Undifferentiated tepals are believed to be the ancestral condition in flowering plants. For example, ''Amborella'', which is thought to have separated earliest in the evolution of flowering plants, has flowers with undiffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Istria
Istria ( ; Croatian language, Croatian and Slovene language, Slovene: ; Italian language, Italian and Venetian language, Venetian: ; ; Istro-Romanian language, Istro-Romanian: ; ; ) is the largest peninsula within the Adriatic Sea. Located at the top of the Adriatic between the Gulf of Trieste and the Kvarner Gulf, the peninsula is shared by three countries: Croatia, Slovenia, and Italy,Marcel Cornis-Pope, John Neubauer''History of the literary cultures of East-Central Europe: junctures and disjunctures in the 19th And 20th Centuries'' John Benjamins Publishing Co. (2006), Alan John Day, Roger East, Richard Thomas''A political and economic dictionary of Eastern Europe'' Routledge, 1sr ed. (2002), 90% of its area being part of Croatia. Most of Croatian Istria is part of Istria County. Geography The geographical features of Istria include the Učka/Monte Maggiore mountain range, which is the highest portion of the Ćićarija/Cicceria mountain range; the rivers Dragonja/Dragogna, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
