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Topic: Monocotyledon


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In the News (Tue 23 Jul 19)

  
  Reference.com/Encyclopedia/Monocotyledon
Monocotyledons or monocots are one of two major groups of flowering plants (angiosperms) that are traditionally recognized, Dicotyledons or dicots being the other.
The name monocotyledons is derived from the traditional botanical name Monocotyledones, which derives from the fact that most members of this group have one cotyledon, or embryonic leaf, in their seeds.
The monocotyledons are famous as a group that is extremely stable in its outer borders (it is a well-defined, coherent group), while in its internal taxonomy is extremely unstable (historically no two authoritative systems have agreed with each other on how the monocotyledons are related to each other).
www.reference.com /browse/wiki/Monocotyledon   (0 words)

  
  Kids.Net.Au - Encyclopedia > Monocotyledon   (Site not responding. Last check: )
A monocotyledon (monocot) is a plant with only one cotyledon, or the first leaf or leaves emerging from a flowering plant embryo.
Grasses are the most notable monocotyledon group, and though looking perhaps rather primitive, are in fact highly evolved for wind pollination.
The Orchids on the other hand have gone the other way and become insect pollination specialists and as a group are considered to be florally the most advanced as their flowers have been changed from the original design the most.
www.kids.net.au /encyclopedia-wiki/mo/Monocotyledon   (137 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
Monocotyledons or monocots are one of two major groups of flowering plants (angiosperms) that are traditionally recognized, Dicotyledons or dicots being the other.
The name monocotyledons is derived from the traditional botanical name Monocotyledones, which derives from the fact that most members of this group have one cotyledon, or embryonic leaf, in their seeds.
The monocotyledons are famous as a group that is extremely stable in its outer borders (it is a well-defined, coherent group), while in its internal taxonomy is extremely unstable (historically no two authoritative systems have agreed with each other on how the monocotyledons are related to each other).
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=monocotyledon   (911 words)

  
  MONOCOTYLEDON FACTS AND INFORMATION
The Monocotyledons or monocots are an extremely important group of flowering plants, dominating great parts of the earth and with many economically important plants.
The traditional name Monocotyledones (some prefer Monocotyledoneae) derives from the fact that most members of this group have one cotyledon, or embryonic leaf, in their seeds.
Monocotyledons are typically considered to differ from the rest of the flowering plants (usually called "dicotyledons" or "dicots") as stated below.
www.bellabuds.com /monocotyledon   (597 words)

  
 * Monocotyledon - (Gardening): Definition
A flowering plant that has only one cotyledon or seed leaf in the seed; it is also characterized by narrow, parallel-veined leaves and parts of the flower in threes or multiples of three.
Palms are a woody monocotyledon of the family Arecaceae.
A common symptom induced in leaves by many plant virus infections in which there is a pattern of dark green, light green and sometimes chlorotic areas.
en.mimi.hu /gardening/monocotyledon.html   (0 words)

  
 Highbeam Encyclopedia - Search Results for Dicotyledon
monocotyledon Subclass of flowering plants (angiosperms) characterized by one seed leaf (cotyledon) in the seed embryo; the leaves are usually parallel-veined.
There are two main groups: monocotyledons (which have one seed leaf) such as grasses and daffodils, and dicotyledons (which have two seed leaves)...
The nucellus and chalaza in monocotyledons: structure and schematics.
www.encyclopedia.com /SearchResults.aspx?Q=Dicotyledon   (646 words)

  
  monocotyledon - Hutchinson encyclopedia article about monocotyledon   (Site not responding. Last check: )
In maize, a monocotyledon, there is a single leaf developed from the scutellum.
Angiosperm (flowering plant) having an embryo with a single cotyledon, or seed leaf (as opposed to dicotyledons, which have two).
Monocotyledons usually have narrow leaves with parallel veins and smooth edges, and hollow or soft stems.
encyclopedia.farlex.com /monocotyledon   (176 words)

  
 Dicotyledon - New World Encyclopedia
Dicotyledons or "dicots" comprise a traditional, major group of flowering plants (angiosperms) whose members typically have two cotyledons, or embryonic leaves, in their seeds, and whose flowers generally have parts in fours or fives, or multiplies thereof.
Flowering plants that are not dicotyledons are designated as monocotyledons, a flowering plant group whose seed typically contains one cotyledon, and whose flower parts are generally in threes or multiples of threes.
It is generally accepted that monocotyledons evolved from within the dicotyledons, and as such the latter form a paraphyletic group (one is which the group contains its most recent common ancestor, but does not contain all the descendants of that ancestor; in this case, it does not include the monocots).
www.newworldencyclopedia.org /entry/Dicotyledon   (909 words)

  
 Monocotyledon - Wikipedia, the free encyclopedia
The Monocotyledons or monocots are an extremely important group of flowering plants, dominating great parts of the earth and with many economically important plants.
As the monocots are a group above the rank of family there is a free choice of name; Article 16 of the ICBN allows either a descriptive name or a name based on a generic name.
The traditional name Monocotyledones (some prefer Monocotyledoneae) derives from the fact that most members of this group have one cotyledon, or embryonic leaf, in their seeds.
en.wikipedia.org /wiki/Monocotyledon   (408 words)

  
 MONOCOTYLEDON - Definition
monocotyl['e]done.] (Bot.) A plant with only one cotyledon, or seed lobe.
Note: The plural, monocotyledons, is used as the name of a large class of plants, and is generally understood to be equivalent to the term endogens.
A scattered arrangement of primary vascular bundles in the stem
www.hyperdictionary.com /dictionary/monocotyledon   (76 words)

  
 Leadership and Teamwork   (Site not responding. Last check: )
It was concluded that the liliopsida were a monophyletic group for the character state of monocotyledon while the magnoliopsida and the eudicots comprised a monophyletic group for the character state of dicotyledon.
In this analysis the presence of monocotyledons, dicotyledons, polycotyledons, and the absence of cotyledons were examined.
Whether or not monocotyledons is the primitive character state or dicotyledons is the primitive character state, cannot be determined by the cladogram generated.
www.susqu.edu /students/b/boozer/WildTypes-cotyledon%20note1.htm   (1763 words)

  
 AllRefer.com - monocotyledon Information
In maize, a monocotyledon, there is a single leaf developed from the scutellum.
Angiosperm (flowering plant) having an embryo with a single cotyledon, or seed leaf (as opposed to dicotyledons, which have two).
Monocotyledons usually have narrow leaves with parallel veins and smooth edges, and hollow or soft stems.
www.allrefer.com /monocotyledon   (0 words)

  
 Monocot Systematics
The systematic vegetative anatomy of the iris family is described in Anatomy of the Monocotyledons Vol.
Current research in the molecular systematics of monocotyledons was presented by Dr Mark Chase and co-workers in a series of 13 papers at the meeting of the American Institute of Biological Sciences (5-10 August 1995).
A critical character in monocotyledon systematics is the presence of polymer-bound ferulic acid in cell walls.
www.kew.org /kewscientist/ks_oct95/monocot.html   (612 words)

  
 Monocotyledon - Encyclopedia.WorldSearch   (Site not responding. Last check: )
Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae.
Anatomy of the Monocotyledons: Iridaceae (Anatomy of the Monocotyledons)
Sieve-element plastids and evolution of monocotyledons, with emphasis on melanthiaceae sensu lato and Aristolochiaceae-Asaroideae, a putative dicotyledon...
encyclopedia.worldsearch.com /monocotyledon.htm   (349 words)

  
 Title of Invention: Rice chitinase promoter
In accordance with the present invention, we have isolated and characterized a monocotyledon chitinase gene and its associated regulatory sequences.
Monocotyledons are presently preferred because the invention monocotyledon promoter is expected to be functional in nearly all monocotyledons, whereas dicotyledon promoters have frequently been non-operative when used in monocotyledon hosts.
In the invention method for inducing gene expression in monocotyledon (and dicotyledon) plants, plant material containing DNA constructs under the expression control of invention monocotyledon regulatory sequences is subjected to conditions which induce transcription of the DNA construct.
www.nal.usda.gov /bic/Biotech_Patents/1995patents/05399680.html   (6486 words)

  
 Monocotyledons
The Monocotyledons are named (John Ray, 1703) for the single leaf or cotyledon produced from a sprouting seed.
Common although not invariable features among Monocotyledons are an irregular distribution of vascular bundles across the stem, leaves with parallel veins, flowers with parts in multiples of three and adventitious roots.
The succulent Monocotyledons are an important group of plants and bulbs including the Aloe, Agave, Amaryllis, Pineapple, Dragon Blood Tree, Bluebell, Orchid and Yam families.
www.succulent-plant.com /families/monocotyledons.html   (210 words)

  
 World Builders: Lesson 8 Monocotyledons and Dicotyledons E Viau CSULA
The endosperm part (the inside of the corn kernel in our example) is the single seed leaf: the monocotyledon The parent plant has stored food in this kernel so that the young plant will have energy resources that it can use to start building itself up as the seed germinates.
The parts of the flowers of monocotyledons are arranged in threes or multiples of threes.
Examples of monocotyledons are the grasses, such as rice, corn, wheat, and sugar cane.
curriculum.calstatela.edu /courses/builders/lessons/less/les8/monodiocots.html   (486 words)

  
 Kunming Institute of Botany, CAS:: - News_Events - News - The Higher-level Phylogeny and Aquatic Origin of Monocotyledon   (Site not responding. Last check: )
Our investigation of the putative monocotyledonous fossils revealed that the fossil record of monocotyledons, particularly during the Cretaceous, is sparse and generally preserved poorly which should be responsible for the difficulties of recognizing and discriminating these monocotyledons remains.
The earliest unequivocal evidence of monocotyledons in fossil record is the occurrence of triuridaceous flowers which are very significant for the origin and divergence of monocotyledons.
In the case of monocotyledons, the ancestral characters of habit and carpel fusion are equivocal, but it is possible for the apocarpy to be derived feature in monocotyledons or apocarpy in monocotyledons represented a reversal from syncarpy.
www.kib.ac.cn /KIBEnglish/soft/94.htm   (1128 words)

  
 Psyllium
The typical species of plantain (Plantago, Family Plantaginaceae) is a stemless annual with leaves arranged alternately in a basal rosette, from the center of which arises an erect spike of nonshowy, wind-pollinated flowers.
For a dicotyledon, the leaves are highly unusual in having several prominent longitudinal major veins, much as one would find in a monocotyledon.
Plants of the plantain family should not be confused with the large, starchy bananas (Musa X paradisica, a monocotyledon in Family Musaceae), which are often also called plantains.
www.botgard.ucla.edu /html/botanytextbooks/economicbotany/Plantago   (1403 words)

  
 Monocotyledons
The Monocotyledons are one of the most distinctive major lineages of angiosperms and traditionally have been paired with the Dicotyledons as the two main groups of flowering plants.
The fossil record of the Monocotyledons is old with the first probable monocot remains dating to the Early Cretaceous.
Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon.
tolweb.org /tree?group=Monocotyledons&contgroup=Angiosperms   (0 words)

  
 CATHOLIC ENCYCLOPEDIA: De Jussieu
Before this Linnæus had pointed out that only the natural system should be the aim of botanical classification, and published, outside of his artificial system, fragments of a natural system as early as 1738.
Antoine-Laurent gave to the three main groups of the original classification of his uncle the names of Acotyledon, Monocotyledon, and Dicotyledon, and divided them into fifteen classes, containing in all one hundred families.
A most important fact is that he sought out and clearly defined the characteristics of families, largely indeed in later treatises.
www.newadvent.org /cathen/08569a.htm   (1777 words)

  
 Amazon.com: monocotyledon   (Site not responding. Last check: )
Monocotyledons: Alismatanae and Commelinanae (except Gramineae) (The Families and Genera of Vascular Plants) by H. Huber, P.J. Rudall, P.S. Stevens, and T. Stützel (Hardcover - Oct 1, 1998)
Monocotyledons: Lilianae (except Orchidaceae) (The Families and Genera of Vascular Plants) by H. Huber, P.J. Rudall, P.S. Stevens, and T. Stützel (Hardcover - Oct 1, 1998)
Sieve-element plastids and evolution of monocotyledons, with emphasis on melanthiaceae sensu lato and Aristolochiaceae-Asaroideae, a putative dicotyledon...
www.amazon.com /s?ie=UTF8&keywords=monocotyledon&index=blended&page=1   (641 words)

  
 15lb4p3a
Using Figures 1 and 2 compare Slide #13, a cross-section through the stem of Zea mays (corn - a monocotyledon) with Slide #11, a cross-section through the stem of Medicago sp.
2 a) Cortex of a Monocotyledon (Slide #13)
In a monocotyledon stem, the vascular bundles are scattered throughout the cortex (Slide #13, Figure 1), whereas the vascular bundles in a dicotyledon stem are organized into a ring near the periphery of the stem (Slide #11, Figure 2).
io.uwinnipeg.ca /~simmons/15lb4p3a.htm   (954 words)

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