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Ceratodon Purpureus
''Ceratodon purpureus'' is a dioicous moss with a color ranging from yellow-green to red. The height amounts to 3 centimeters. It is found worldwide, mainly in urban areas and next to roads on dry sand soils. It can grow in a very wide variety of habitats, from polluted highway shoulders and mine tailings to areas recently denuded by wildfire to the bright slopes of Antarctica. Its common names include redshank, purple forkmoss, ceratodon moss, fire moss, and purple horn toothed moss. Description Fire moss is a native, short moss that forms dense tufts or sometimes cushions.Shaw, J.; Jules, E. S.; Beer, S. C. 1991. Effects of metals on growth, morphology, and reproduction of Ceratodon purpureus. Bryologist. 94(3): 270-277.Bland, John H. 1971. Forests of Lilliput. The realm of mosses and lichens. Englewood Cliffs, NJ: Prentice-Hall, Inc. The stems are erect, usually about 0.5 inch (1.3 cm) long. The upper 0.19 inch (0.5 cm) is current year's growth; often slightly branc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporophyte
A sporophyte () is the diploid multicellular stage in the life cycle of a plant or alga which produces asexual spores. This stage alternates with a multicellular haploid gametophyte phase. Life cycle The sporophyte develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent. All land plants, and most multicellular algae, have life cycles in which a multicellular diploid sporophyte phase alternates with a multicellular haploid gametophyte phase. In the seed plants, the largest groups of which are the gymnosperms and flowering plants (angiosperms), the sporophyte phase is more prominent than the gametophyte, and is the familiar green plant with its roots, stem, leaves and cones or flowers. In flowering plants the gametophytes are very reduced in size, and are represented by the germinated pollen and the embryo sac. The sporophyte produces spores (hence t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryophyta Of New Zealand )
{{Disambiguation ...
Bryophyta may refer to: * Mosses – Bryophyta in the strict sense; a specific group of leafy nonvascular plants, now regarded as Division Bryophyta * Bryophytes – Bryophyta in the broad sense; a group of plants regarded as a single division by some, but further split into: ** mosses (Bryophyta) ** hornworts (Anthocerotophyta) **liverworts (Marchantiophyta The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicranales
Dicranales is an order of haplolepideous mosses in the subclass Dicranidae The Dicranidae are a widespread and diverse subclass of mosses in class Bryopsida, with many species of dry or disturbed areas. They are distinguished by their spore In biology, a spore is a unit of sexual or asexual reproduction that may .... References External links McGrawHill, Dicranales Moss orders {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Domain
The public domain (PD) consists of all the creative work A creative work is a manifestation of creative effort including fine artwork (sculpture, paintings, drawing, sketching, performance art), dance, writing (literature), filmmaking, and composition. Legal definitions Creative works require a cre ... to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because those rights have expired, anyone can legally use or reference those works without permission. As examples, the works of William Shakespeare, Ludwig van Beethoven, Leonardo da Vinci and Georges Méliès are in the public domain either by virtue of their having been created before copyright existed, or by their copyright term having expired. Some works are not covered by a country's copyright laws, and are therefore in the public domain; for example, in the United States, items excluded from copyright include the for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picea Mariana
''Picea mariana'', the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of the province of Newfoundland and Labrador and is that province's most numerous tree. The range of the black spruce extends into northern parts of the United States: in Alaska, the Great Lakes region, and the upper Northeast. It is a frequent part of the biome known as taiga or boreal forest.. The Latin specific epithet ''mariana'' means “of the Virgin Mary”. Description ''P. mariana'' is a slow-growing, small upright evergreen coniferous tree (rarely a shrub), having a straight trunk with little taper, a scruffy habit, and a narrow, pointed crown of short, compact, drooping branches with upturned tips. Through much of its range it averages tall with a trunk diameter at maturity, though occasional specimens can reach tall and diameter. The bark is thin, scaly, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaphalis Margaritacea
''Anaphalis margaritacea'', commonly known as the western pearly everlasting or pearly everlasting, is an Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...n and North American species of flowering perennial plant in the family Asteraceae. Description ''A. margaritacea'' grows erect up to about tall, with narrow, alternate leaves up to . The undersides of the leaves are densely covered in tiny hairs. The stems are dry and brittle. The whitish to yellowish flower grows to about across as part of a corymb inflorescence, the most conspicuous part of which is the numerous pearly white bracts that surround the disc florets. It blooms between June and September. The plant is dioecious, meaning the pollen-producing (male) and seed-producing (female) flowers are borne on separate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epilobium Angustifolium
''Chamaenerion angustifolium'' is a perennial herbaceous flowering plant in the willowherb family Onagraceae. It is known in North America as fireweed, in some parts of Canada as great willowherb, in Britain and Ireland as rosebay willowherb. In the United Kingdom it is also known as bombweed, as a result of its rapid appearance on city bomb sites during the Blitz of World War II; the plant is also traditionally known as Saint Anthony's laurel. It is also known by the synonyms ''Chamerion angustifolium'' and ''Epilobium angustifolium''. It is native throughout the temperate Northern Hemisphere, including large parts of the boreal forests. Description The reddish stems of this herbaceous perennial are usually simple, erect, smooth, high with scattered alternate leaves. The leaves are spirally arranged, entire, narrowly lanceolate, and pinnately veined, the secondary leaf veins anastomosing, joining together to form a continuous marginal vein just inside the leaf margins. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Light
Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants. Indoor lighting is usually accomplished using light fixtures, and is a key part of interior design. Lighting can also be an intrinsic component of landscape projects. History With the discovery of fire, the earliest form of artificial lighting used to illuminate an area were campfires or torches. As early as 400,000 years ago, fire was kindled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springtails
Springtails (Collembola) form the largest of the three lineages of modern hexapods that are no longer considered insects (the other two are the Protura and Diplura). Although the three orders are sometimes grouped together in a class called Entognatha because they have internal mouthparts, they do not appear to be any more closely related to one another than they are to all insects, which have external mouthparts. Collembolans are omnivorous, free-living organisms that prefer moist conditions. They do not directly engage in the decomposition of organic matter, but contribute to it indirectly through the fragmentation of organic matter and the control of soil microbial communities. The word ''Collembola'' is from the ancient Greek "glue" and "peg"; this name was given due to the existence of the collophore, which was previously thought to stick to surfaces to stabilize the creature. Some DNA sequence studies suggest that Collembola represent a separate evolutionary line fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protonema
A protonema (plural: protonemata) is a thread-like chain of cells that forms the earliest stage of development of the gametophyte (the haploid phase) in the life cycle of mosses. When a moss first grows from a spore, it starts as a ''germ tube'', which lengthens and branches into a filamentous complex known as a ''protonema'', which develops into a leafy gametophore, the adult form of a gametophyte in bryophytes. Moss spores germinate to form an alga-like filamentous structure called the protonema. It represents the juvenile gametophyte. While the protonema is growing by apical cell division, at some stage, under the influence of the phytohormone cytokinin, buds are induced which grow by three-faced apical cells. These give rise to gametophores, stems and leaf like structures. Bryophytes do not have true leaves (megaphylls A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and special ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brid
Brigid ( , ; meaning 'exalted one' from Old Irish),Campbell, MikBehind the Name.See also Xavier Delamarre, ''brigantion / brigant-'', in ''Dictionnaire de la langue gauloise'' (Éditions Errance, 2003) pp. 87–88: "Le nom de la sainte irlandaise ''Brigit'' est un adjectif de forme *''brigenti''... 'l'Eminente'." Delamarre cites E. Campanile, in '' Langues indo-européennes'' ("The name of the Irish Saint Brigid is an adjective of the form *''brigenti''... 'the Eminent'"), edited by Françoise Bader (Paris, 1994), pp. 34–40, that Brigid is a continuation of the Indo-European goddess of the dawn like Aurora. Brigit or Bríg is a goddess of pre-Christian Ireland. She appears in Irish mythology as a member of the Tuatha Dé Danann, the daughter of the Dagda and wife of Bres, with whom she had a son named Ruadán. She is associated with wisdom, poetry, healing, protection, blacksmithing and domesticated animals. ''Cormac's Glossary'', written in the 9th century by Christian monk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
