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Rhynchosporium Secalis
Rhynchosporium secalis is an ascomycete fungus that is the causal agent of Scald (barley disease), barley and rye scald. Morphology No sexual stage is known. The mycelium is hyaline to light gray and develops sparsely as a compact stroma under the cuticle of the host plant. Condia (2-4 x 12-20 μm) are borne sessilely on cells of the fertile stroma. They are hyaline, 1-septate, and cylindric to ovate, mostly with a short apical beak. Microconida have been reported, but their function is unknown. They are exuded from flasklike mycelial branches. Host species *''Agropyron dasystachyum'', ''Agropyron desertorum, A. desertorum'', ''Agropyron elmeri, A. elmeri'', ''Agropyron intermedium, A. intermedium'', ''Agropyron riparium, A. riparium'', ''Agropyron scabriglume, A. scabriglume'', ''Agropyron semicostatum, A. semicostatum'', ''Agropyron trachycaulum, A. subsecundum'', ''Agropyron trachycaulum, A. trachycaulum'', Agropyron trachycaulum var. trachycaulum, ''A. trachycaulum'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agrostis Tenuis
''Agrostis capillaris'', the common bent, colonial bent, or browntop, is a rhizomatous and stoloniferous perennial in the grass family ( Poaceae). It is native to Eurasia and has been widely introduced in many parts of the world. Colonial bent grows in moist grasslands and open meadows, and can also be found in agricultural areas, roadsides, and invading disturbed areas. The name '' Agrostis'' comes from the Greek word meaning forage plant, ''agros'' meaning "a field". It is found growing in neutral to acidic soils. It has a very fine texture and like most bent grasses grows very dense. Although this species is used on golf courses, providing some of the best ball playing surfaces in the world, it also produces a spectacular visual appearance when maintained properly. It provides an excellent home lawn but is not tolerant of heavy use. Colonial bent is fairly easy to grow from seeds and fertilization of the lawn is not as intense. This grass also takes longer to establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calamagrostis Arundinacea
''Calamagrostis arundinacea'' is a species of bunch grass in the family Poaceae, native to Eurasia, China and India. Under its synonym ''Calamagrostis brachytricha'' it has gained the Royal Horticultural Society's Award of Garden Merit. Description The species is perennial and tufted with short rhizomes and erect culms that are long. Each leaf has a truncate ligule which is long, and obtuse. The leaf-blades are by , hairless and have both a scabrous surface and an attenuate apex. The panicle has a scaberulous peduncle and is lanceolate, open, continuous, and is long by wide. Flowers have a pair of lodicules and stigmas, and three anthers which are long. The fruit is a caryopsis with an additional pericarp Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers. They are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits. Aggre .... References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Vulgaris
''Bromus vulgaris'' is a species of brome grass known by the common name Columbia brome. Distribution It is native to western North America from British Columbia to California to Wyoming, where it grows in many types of habitat, including temperate coniferous forest. Description It is a perennial grass which may reach 1.1 meters in height. The inflorescence is an open array of spikelets, the lower ones drooping or nodding. The spikelets are flattened and have awns each up to a centimeter long at the tips of the fruits. This grass is considered a good forage for livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to animals ... and wild grazing animals. External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Secalinus
''Bromus secalinus'' is a species of bromegrass known as rye brome. The specific epithet ''secalinus'' is Latin, meaning "rye-like". The fruits are hard, rounded glumes that appear superficially similar to the rye grain, which gives the brome its common and scientific name. The grass has a diploid number of 28. The grass is native to Eurasia but is well known in many other parts of the world where it has been introduced. It is a noxious weed throughout much of North America. Description ''Bromus secalinus'' is an annual grass that grows high. The upper sheaths are smooth and strongly nerved, and the lower sheaths are glabrous or slightly pubescent. The leaf blades are long and wide, and are covered with short hairs. The panicles are long and wide with spreading or ascending branches. The spreading inflorescence nods when it becomes heavy with grain though prior to maturity the panicle is erect. The spikelets are on elongated pedicels, with each spikelet bearing five to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Pumpellianus
''Bromus'' is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species. ''Bromus'' is part of the cool-season grass lineage (subfamily Pooideae), which includes about 3300 species. Within Pooideae, ''Bromus'' is classified in tribe Bromeae (it is the only genus in the tribe). ''Bromus'' is closely related to the wheat-grass lineage (tribe Triticeae) that includes such economically important genera as ''Triticum'' (wheat), ''Hordeum'' (barley) and ''Secale'' (rye). Etymology The generic name ''Bromus'' is derived from the Latin ''bromos'', a borrowed word from the Ancient Greek (). and mean ''oats'', but seems to have referred specifically to ''Avena sativa'' (Hippocrates ''On Regimen in Acute Diseases'' 2.43, Dioscorides Medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Inermis
''Bromus inermis'' is a species of the true grass family ( Poaceae). This rhizomatous grass is native to 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 subcontinent of Eurasia and it is located entirel ... and North America. The plant is characterized by an erect, leafy, long-lived perennial, tall, rhizomatous and commonly producing a dense sod. It starts growth in early spring; flowers May to July; reproduces from seeds, tillers, and rhizomes. It may regrow and re flower in the fall if moisture is sufficient. The leaves are glabrous or occasionally pubescent, particularly on the sheaths; blades long, wide, flat, with a raised and keeled midrib below; sheaths closed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Frondosus
''Bromus'' is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species. ''Bromus'' is part of the cool-season grass lineage (subfamily Pooideae), which includes about 3300 species. Within Pooideae, ''Bromus'' is classified in tribe Bromeae (it is the only genus in the tribe). ''Bromus'' is closely related to the wheat-grass lineage (tribe Triticeae) that includes such economically important genera as ''Triticum'' (wheat), ''Hordeum'' (barley) and ''Secale'' (rye). Etymology The generic name ''Bromus'' is derived from the Latin ''bromos'', a borrowed word from the Ancient Greek (). and mean ''oats'', but seems to have referred specifically to ''Avena sativa'' (Hippocrates ''On Regimen in Acute Diseases'' 2.43, Dioscorides Medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Ciliatus
''Bromus ciliatus'' is a species of brome grass known by the common name fringed brome. It is native to most of North America, including most of Canada, most of the United States except for some portions of the South, and northern Mexico. It is a plant of many habitats, including temperate coniferous forest. The specific epithet ''ciliatus'' is Latin for "ciliate", referring to the delicate hairs of the leaf blades. Description ''Bromus ciliatus'' is a perennial grass that grows in tufts up to tall, and occasionally taller in the Great Plains. The grass lacks rhizomes but has a well developed root system. The sheaths are glabrous or bear minute hairs and have a narrow " V" shaped orifice. The sheaths are typically shorter than the internodes. The scabrous leaves often have sparse long hairs and measure wide. The open inflorescence bears many spikelets on stalks, the upper ones ascending and the lower nodding or drooping. This panicle is long. The flattened spikelets are long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Carinatus
''Bromus carinatus'' is a species of brome grass known by the common names California brome and mountain brome. Distribution It is native to western North America from Alaska to northern Mexico, where it can be found in many types of habitat. It is known in parts of the American midwest and eastern North America as an introduced species. Description ''Bromus carinatus'' is a perennial bunchgrass growing in clumps 0.5 to 1.5 meters tall, with many narrow leaves up to 40 centimeters long. The inflorescence is a spreading or drooping array of flat spikelets longer than they are wide. The grass is wind-pollinated but is also sometimes cleistogamous, so that the flowers pollinate themselves, especially under stressful conditions. It also reproduces vegetatively via tillers. This species is highly variable. It can be easily confused with '' B. catharticus'' and ''B. stamineus''. Uses This grass is used for control of erosion and revegetation of damaged land, as well as a highly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Aleutensis
''Bromus aleutensis'', commonly known as the Aleutian brome, is a perennial grass found in North America. ''B. aleutensis'' has a diploid number of 56. Taxonomy It has been suggested that ''Bromus aleutensis'' may be a modified version of the similar '' Bromus sitchensis'' in which reproduction occurs at an earlier developmental state as a response to the climate of the Aleutian Islands. In addition, while ''B. aleutensis'' is mostly self-fertilizing and ''B. sitchensis'' is mostly outcrossing, anther lengths close to in some individuals of ''B. aleutensis'' suggests outcrossing. Description ''B aleutensis'' is a perennial grass that is loosely cespitose. The decumbent culms are tall and thick. The striate and pilose leaf sheaths have dense hairs. Auricles are rarely present. The glabrous ligules are long. The somewhat pilose leaf blades are long and wide. The open panicles are long. Lower branches of the inflorescence are long and number one to two per node, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouteloua Hirsuta
''Bouteloua hirsuta'', commonly known as hairy grama, is a perennial short prairie grass that is native throughout much of North America, including the Great Plains and Canadian Prairies region, as well as Mexico and Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H .... Description ''B. hirsuta'' is a warm-season grass growing 10–20 in (0.2-0.5 m tall, and grows well on mountainous plateaus, rocky slopes, and sandy plains. The leaf blade is flat or slightly rolled, narrow, mostly basal, with hairy margins. The leaf sheath is rounded, smooth, and shorter than internodes. The seedhead is one to four spikes, purplish before maturity, about 1 in (2.5 cm) long; the rachis extends beyond spikelets. It is used primarily for grazing. Distribution Hairy grama prefers rocky s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
