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Leucojum
''Leucojum'' is a small genus of bulbous plants native to Eurasia belonging to the Amaryllis family, subfamily Amaryllidoideae. As currently circumscribed, the genus includes only two known species, most former species having been moved into the genus '' Acis''. Both genera are known as snowflakes. ''Leucojum'' is a compound of Greek λευκος, ''leukos'' "white" and ἰόν, ''ion'' "violet". The spelling ''Leucoium'' is also used. Other common names include snowbell, dewdrop, and St. Agnes' flower. Description Until 2004, the genus ''Leucojum'' was treated as including species now placed in ''Acis''. ''Leucojum'' when narrowly circumscribed consists of only two species, '' Leucojum aestivum'' and '' Leucojum vernum''. Compared to ''Acis'', ''Leucojum'' has hollow rather than solid flower stalks ( scapes), white flowers with green or yellow marks on both the inner and outer three tepals, flower stems (pedicels) at least as long as the spathes enclosing the inflorescence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucojum Vernum Sturm47
''Leucojum'' is a small genus of bulbous plants native to Eurasia belonging to the Amaryllis family, subfamily Amaryllidoideae. As currently circumscribed, the genus includes only two known species, most former species having been moved into the genus '' Acis''. Both genera are known as snowflakes. ''Leucojum'' is a compound of Greek λευκος, ''leukos'' "white" and ἰόν, ''ion'' "violet". The spelling ''Leucoium'' is also used. Other common names include snowbell, dewdrop, and St. Agnes' flower. Description Until 2004, the genus ''Leucojum'' was treated as including species now placed in ''Acis''. ''Leucojum'' when narrowly circumscribed consists of only two species, ''Leucojum aestivum'' and ''Leucojum vernum''. Compared to ''Acis'', ''Leucojum'' has hollow rather than solid flower stalks ( scapes), white flowers with green or yellow marks on both the inner and outer three tepals, flower stems (pedicels) at least as long as the spathes enclosing the inflorescence, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucojum Vernum
''Leucojum vernum'', called the spring snowflake, is a species of flowering plant in the family Amaryllidaceae. It is native to central and southern Europe from Belgium to Ukraine. It is considered naturalized in north-western Europe, including Great Britain and parts of Scandinavia, and in the US states of Georgia and Florida. This spring flowering bulbous herbaceous perennial is cultivated as an ornamental for a sunny position. The plant multiplies in favourable conditions to form clumps. Each plant bears a single white flower with greenish marks near the tip of the tepal, on a stem about tall, occasionally more. The Latin specific epithet ''vernum'' means "relating to Spring". Its close relative, ''Leucojum aestivum'', flowers in summer. Description ''Leucojum vernum'' is tall in flower. Its leaves, which appear at the same time as the flowers and continue to elongate during flowering, are 5–25 mm wide and long, generally reaching to below the level of the flowers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucojum Aestivum
''Leucojum aestivum'', commonly called summer snowflake or Loddon lily (see ), is a plant species widely cultivated as an ornamental. It is native to most of Europe from Spain and Ireland to Ukraine, with the exception of Scandinavia, Russia, Belarus and the Baltic countries. It is also considered native to Turkey, Iran and the Caucasus. It is naturalized in Denmark, South Australia, New South Wales, Nova Scotia and much of the eastern United States. Description ''Leucojum aestivum'' is a perennial bulbous plant, generally tall, but some forms reach . Its leaves, which are well developed at the time of flowering, are strap-shaped, wide, reaching to about the same height as the flowers. The flowering stem ( scape) is hollow and has wings with translucent margins. The pendant flowers appear in late spring and are borne in umbels of usually three to five, sometimes as many as seven. The flower stalks (pedicels are of different lengths, long. The flowers are about in diameter and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acis (plant)
''Acis '' is a genus of perennial, herbaceous and bulbous plants in the amaryllis family (Amaryllidaceae, subfamily Amaryllidoideae). The genus consists of nine species distributed in Europe and Northern Africa. ''Acis'' was previously included in '' Leucojum''; both genera are known as snowflakes. Description ''Acis'' species are perennial bulbous plants. The flowers have six equally sized tepals, unlike the related genus ''Galanthus'' (snowdrops) in which the inner three tepals are shorter than the outer three. The tepals are unmarked, differing in this respect from '' Leucojum''. Most species have white tepals, although those of '' Acis rosea'' are pale pink. ''Acis'' species are relatively short, up to in '' Acis autumnalis'' and in ''Acis tingitana''. The leaves are narrow; very narrow (filiform) in '' Acis trichophylla''. The flower stalks (scapes) are solid. Taxonomy ''Acis'' was first differentiated from the genus '' Leucojum'' by Richard Anthony Salisbury in ''The P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galanthus
''Galanthus'' (from Ancient Greek , (, "milk") + (, "flower")), or snowdrop, is a small genus of approximately 20 species of bulbous perennial herbaceous plants in the family Amaryllidaceae. The plants have two linear leaves and a single small white drooping bell-shaped flower with six petal-like (petaloid) tepals in two circles (whorls). The smaller inner petals have green markings. Snowdrops have been known since the earliest times under various names, but were named ''Galanthus'' in 1753. As the number of recognised species increased, various attempts were made to divide the species into subgroups, usually on the basis of the pattern of the emerging leaves (vernation). In the era of molecular phylogenetics this characteristic has been shown to be unreliable and now seven molecularly defined clades are recognised that correspond to the biogeographical distribution of species. New species continue to be discovered. Most species flower in winter, before the vernal equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galantheae
Galantheae is a tribe of plants belonging to the subfamily Amaryllidoideae of the Amaryllis family ( Amaryllidaceae). , it contains three genera, although more were included previously. The position of the ovary is inferior. Taxonomy For a history of the circumscription of Galantheae, see Meerow ''et al.'' 2006. A narrower sense of the tribe is now favoured, with only three genera. Phylogeny The placement of Galantheae within subfamily Amaryllidoideae is shown in the following cladogram: Subdivision Included genera are: *'' Acis'' Salisb. *'' Galanthus'' L. *'' Leucojum'' L. Previously included were: *'' Hannonia'' *''Lapiedra'' *''Vagaria'' Distribution and habitat Galantheae represent one of the three European tribes of Amaryllidaceae (predominantly Mediterranean). Cultivation Some species of ''Acis'', ''Galanthus'' and ''Leucojum'' are common ornamental garden plants Ornamental plants or garden plants are plants that are primarily grown for their b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Paradisus Londinensis
''The Paradisus Londonensis'' (full title ''The Paradisus Londonensis : or Coloured Figures of Plants Cultivated in the Vicinity of the Metropolis'') is a book dated 1805–1808, printed by D.N. Shury, and published by William Hooker.. It consists of coloured illustrations of 117 plants drawn by William Hooker, with explanatory text by Richard Anthony Salisbury. Publication ''The Paradisus Londinensis'' was constructed as two volumes, each of two parts. The plates were in one part, the text in the other. The title page of the first volume and part bears the date 1805 and identifies the illustrator and publisher as Hooker. The title page of the second part identifies the author of the text as Salisbury. It has often been catalogued as 1805–1807, although some later plates are dated 1808. The International Plant Names Index dates the parts as follows: *1(1): 1 Jun 1805 – 1 May 1806 *1(2): 1 Jun 1806 – 1 Sep 1808 *2(1): 1 Jun 1807 – 1 May 1808 *2(2): 1 Jun 1808 – 1 Sep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amaryllidaceae
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus ''Amaryllis'' and is commonly known as the amaryllis family. The leaves are usually linear, and the flowers are usually bisexual and symmetrical, arranged in umbels on the stem. The petals and sepals are undifferentiated as tepals, which may be fused at the base into a floral tube. Some also display a corona. Allyl sulfide compounds produce the characteristic odour of the onion subfamily (Allioideae). The family, which was originally created in 1805, now contains about 1600 species, divided into about 70–75 genera, 17 tribes and three subfamilies, the Agapanthoideae (agapanthus), Allioideae (onions and chives) and Amaryllidoideae (amaryllis, daffodils, snowdrops). Over time, it has seen much reorganisation and at various times was combined with the related Liliaceae. Since 2009, a very broa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensu Stricto
''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. Common qualifiers ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: *''sensu stricto'' – "in the strict sense", abbreviation ''s.s.'' or ''s.str.''; *''sensu lato'' – "in the broad sense", abbreviation ''s.l.''; *''sensu amplo'' – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent r most important or significantsense". When appropriate, comparative and superlative adjectives may also be used to convey the meaning o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be Boundaries between the continents of Earth#Asia and Europe, separated from Asia by the drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (European part of Turkey), Egypt, Iran, the Levant (including Syria (region), Ash-Shām and Cyprus), Mesopotamia (modern-day Iraq), and the Socotra Governorate, Socotra Archipelago (a part of Yemen). The term came into widespread usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century. The term "Middle East" has led to some confusion over its changing definitions, and has been viewed by some to be discriminatory or too Eurocentrism, Eurocentric. The region includes the vast majority of the territories included in the closely associated definition of Western Asia (including Iran), but without the South Caucasus, and additionally includes all of Egypt (not just the Sina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and most of its descendants, excluding a few monophyletic subgroups. The group is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic group (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term was coined by Willi Hennig to apply to well-known taxa like Reptilia ( reptiles) which, as commonly named and traditionally defined, is paraphyletic with respect to mammals and birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor, including all extant reptiles as well as the extinct synapsids, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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