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Topic: Dicotyledon


  
  Dicotyledon Family Key - Edible Sierra Nevada Plants - Backcountry Rangers
Dicotyledon Family Key - Edible Sierra Nevada Plants - Backcountry Rangers
I have taken extreme care in providing accurate information in these keys, however, there is always the possibility of errors.
These keys have been made possible by the support of Norman F. Weeden and his permission to use the dichotomous keys in his book "A Sierra Nevada Flora".
www.backcountryrangers.com /plants_dicotfamkey.html   (3002 words)

  
  Dicotyledon - Biocrawler   (Site not responding. Last check: 2007-11-02)
Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons.
Flowering plants or angiosperms that are not dicotyledonous are monocotyledonous: having one embryonic leaf.
It is believed that monocots evolved from dicots, and as such the latter form a paraphyletic group, i.e.
www.biocrawler.com /encyclopedia/Dicotyledon   (257 words)

  
  Dicotyledon - Wikipedia, the free encyclopedia
Dicotyledons or "dicots" are a group of flowering plants whose seed typically contains two embryonic leaves or cotyledons.
This means that dicotyledons no longer are regarded as a "good" group, and the names "dicotyledons" and "dicots" are no longer to be used, at least in a taxonomic sense.
Other dicotyledons and monocotyledons have monosulcate pollen, or forms derived from it, whereas eudicots have tricolpate pollen, or derived forms, the pollen having three or more pores set in furrows called colpi.
en.wikipedia.org /wiki/Dicotyledon   (700 words)

  
 dicotyledon - Hutchinson encyclopedia article about dicotyledon
The castor is a dicotyledon, a plant in which the developing plant has two leaves, developed from the cotyledon.
Dicotyledons are characterized by the presence of two seed leaves, or cotyledons, in the embryo, which is usually surrounded by the endosperm.
Dicotyledons may be small plants such as daisies and buttercups, shrubs, or trees such as oak and beech.
encyclopedia.farlex.com /dicotyledon   (182 words)

  
 Dicotyledon Summary
Dicotyledons or "dicots" is a name for a group of flowering plants whose seed typically contains two embryonic leaves or cotyledons.
Flowering plants that are not dicotyledons are monocotyledons, typically having one embryonic leaf.
This means that dicotyledons no longer are regarded as a "good" group, and the names "dicotyledons" and "dicots" are no longer to be used, at least in a taxonomic sense.
www.bookrags.com /Dicotyledon   (1285 words)

  
 AllRefer.com - dicotyledon Information
The castor is a dicotyledon, a plant in which the developing plant has two leaves, developed from the cotyledon.
Dicotyledons are characterized by the presence of two seed leaves, or cotyledons, in the embryo, which is usually surrounded by the endosperm.
Dicotyledons may be small plants such as daisies and buttercups, shrubs, or trees such as oak and beech.
www.allrefer.com /dicotyledon   (211 words)

  
 Daylily Dictionary: Dicotyledons   (Site not responding. Last check: 2007-11-02)
The dicotyledons are so named because sprouting seeds have two primary leaves or cotyledons.
Other common features of the dicots are leaves with branching or net veining and flowers with four or five tepals or multiples of these.
Examples of dicotyledons would be roses, most fruit trees such as apples, pears, cherries and peaches.
www.daylilies.org /ahs_dictionary/dicotyledon.html   (75 words)

  
 * Dicotyledon - (Gardening): Definition
Division is divided into two classes, 'monocotyledon' or 'dicotyledon'.
Monocotyledons are plants which have veins parallel to the leaf margins and a single leaf after germination (e.g.
However, these vast areas are sol érodé covered by graminaceous plants (Aristida similis and A. Rufescens) and some dicotyledons with a great underground system which permit them to resist to fire.
en.mimi.hu /gardening/dicotyledon.html   (130 words)

  
 Flowering Plant Creation @ NaturalResearch.org (Natural Research)   (Site not responding. Last check: 2007-11-02)
In English a member of either group may be called a "dicotyledon" (plural "dicotyledons") and "monocotyledon" (plural "monocotyledons"), or abbreviated, as "dicot" (plural "dicots") and "monocot" (plural "monocots").
The vascular bundles of the stem are arranged such that the xylem and phloem stand side by side on the same radius.
In the Dicotyledons, the bundles in the very young stem are arranged in an open ring, separating a central pith from an outer cortex.
www.naturalresearch.org /encyclopedia/Flowering_plant   (1846 words)

  
 Keys to Dicotyledon Families of Central French Guiana
Dicotyledons which has been submitted for consideration for publication to the Memoirs of The New York Botanical Garden.
We are preparing electronic, multiple entry keys to the families of all flowering plants and will have them available, along with line illustrations and photographs, as soon as they are completed.
GROUP V. The Magnoliopsida (dicotyledons) is a class within the phylum Magnoliophyta (the flowering plants).
www.nybg.org /bsci/french_guiana/dicotfam_key.html   (277 words)

  
 ENGLAND - Online Information article about ENGLAND
Among the flowering plants are Dewalquea, a ranunculaceous genus already mentioned as occurring in the Upper Cretaceous, and numerous living genera of forest-trees, such as occur throughout the Tertiary period, and are readily comparable with living forms.
Saporta has described about seventy Dicotyledons, most of which are peculiar to this locality.
Pengelly to the Miocene period, were considered by Gardner to be of the same age as the Bournemouth beds (Middle Eocene).
encyclopedia.jrank.org /EMS_EUD/ENGLAND.html   (7740 words)

  
 Comparative Wood Anatomy - Systematic, Ecological, and Evolutionary Aspects of Dicotyledon Wood (Second edition)
Price includes PandP in the UK This is a completely revised edition of the book on wood anatomy, incorporating information on the significant changes that have occurred in understanding of wood anatomy over the past years.
It is richly illustrated with both light and scanning electron micrographs that clearly presents variations in dicotyledon wood in terms of cell types and their variations, taxonomic distribution of characteristics, ecological aspects and evolutionary significance of.
Overall the additions extend the value of the first editions that was regarded an immensely valuable exposé on comparative wood anatomy and its bearing on systematic, ecological and evolutionary aspects of dicotyledon wood, making it strongly recommended to all who are interested in wood and wood products.
www.cplbookshop.com /contents/C349.htm   (194 words)

  
 Title of Invention: Rice chitinase promoter
In dicotyledonous plants, extensive studies have shown that microbial attack or elicitor treatment induces the transcription of a battery of genes encoding proteins involved in these defense responses, as part of a massive switch in the overall pattern of gene expression.
While chitinases from dicotyledons have been well characterized, and many of the corresponding genes have been isolated, there is little information available on the structure and expression of chitinase genes from monocotyledons.
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)

  
 Highbeam Encyclopedia - Search Results for Cotyledon
dicotyledon The Concise Oxford Dictionary of English Etymology...
From the taproot arise smaller lateral roots (secondary roots), which in turn produce even smaller lateral roots (tertiary roots).
Most dicotyledonous plants (cotyledon), such as dandelions, produce taproots.
www.encyclopedia.com /SearchResults.aspx?Q=Cotyledon   (697 words)

  
 Dicotyledons   (Site not responding. Last check: 2007-11-02)
The Dicotyledons are named for the two seed leaves or cotyledons produced from a sprouting seed with about 200,000 species within the group.
Molecular analysis suggests that the Dicotyledons do not form a coherent taxonomic group and in future may be divided into Eudicots whose pollen has three grooves and Palaeodicots whose pollen has a single groove.
Common features among Dicotyledons are vascular bundles forming a ring within the stem, flowers with parts in multiples of four or five, leaves with a branched network of veins, roots develping from the radicle and pollen grains with three grooves.
www.succulent-plant.com /families/dicotyledons.html   (158 words)

  
 Introductory Biology: Lab 9 for 71.125 - Glossary
Each member of the class is either a monocotyledon (grasses, tulips) or a dicotyledon (apple, primrose).
A group of plant cells that are found at the growing tip of a root or a stem.
The core of a dicotyledon stem, containing parenchyma cells that have a storage function.
www.umanitoba.ca /faculties/science/biological_sciences/lab9/biolab9_gloss.html   (1041 words)

  
 CSIRO PUBLISHING - Wildlife Research
novaehollandiae was found to consume considerable amounts of dicotyledon leaf (27%), fungi (19%), invertebrate (17%) and seed (14%).
Seasonal variations in the percentage of dicotyledon leaf and fungi consumed were recorded.
Dicotyledon leaf was the most commonly consumed food item at Anglesea, Providence Ponds and Wilsons Promontory, while fungi was the most important at Loch Sport.
www.publish.csiro.au /nid/144/paper/WR97062.htm   (189 words)

  
 Research: The vague form created by the environment: Podostemaceae
In fact the forms of this family are rather diverse, and they are the asterales group in true dicotyledons.
In short, after branching off from the ancestor they share with the Hypericum, which has a general dicotyledon shape, the podostemaceae rapidly evolved into a form enabling it to cope with their environment.
They have lost the characteristics of the dicotyledon, including a meristem on the shoot apex and radicules, resulting in vague, irregular forms.
www.brh.co.jp /en/experience/journal/40/research_1.html   (365 words)

  
 eNature: Ask an Expert   (Site not responding. Last check: 2007-11-02)
How do dicotyledon seeds develop and what are the different ways that dicotyledon plants spread their seeds?
The embryo of dicotyledons have two small leaves, or cotyledons.
Characterized by broad leaves with branching veins and complicated flowers, they are distributed by such means as wind, birds that eat the fruits, and hitching rides on animal fur.
www.enature.com /expert/expert_show_question.asp?questionID=17023   (66 words)

  
 Amazon.com: dicotyledon   (Site not responding. Last check: 2007-11-02)
Dicotyledons (Memoirs of the New York Botanical Garden) by Scott A. Mori, Georges Cremers, Carol Gracie, and Jean-Jacques de Granville (Hardcover - Jan 30, 2003)
Anatomy of the Dicotyledons, Leaves, Stem, and Wood in Relation to Taxonomy with Notes on Economic Uses.
Cauline or carpellary placentation among dicotyledons: (Axis-borne versus leaf-borne ovules) by Benjamin Moetjipto Moeliono (Unknown Binding - 1970)
www.amazon.com /s?ie=UTF8&keywords=dicotyledon&tag=lexico&index=blended&link_code=qs&page=1   (432 words)

  
 Modeling of Leaf Anatomy and Properties including PROSPECT Models
The propagation of light in a typical dicotyledon leaf is investigated with a new Monte Carlo ray-tracing model.
The three-dimensional internal cellular structure of the various leaf tissues, including the epidermis, the palisade parenchyma, and the spongy mesophyll, is explicitly described.
The main objective of this work is to perform sensitivity analyses at different wavelengths to test the influence of the leaf internal structure as well as that of pigment and water concentrations on the light attenuation profile and the bidirectional scattering shape.
www.cstars.ucdavis.edu /projects/modeling   (909 words)

  
 CATHOLIC ENCYCLOPEDIA: De Jussieu
Beginning with the cryptogams, the system proceeds from the monocotyledon to the dicotyledon, and closes with the coniferæ.
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.
www.newadvent.org /cathen/08569a.htm   (1896 words)

  
 Definition of dicotyledon - Merriam-Webster Online Dictionary
Learn more about "dicotyledon" and related topics at Britannica.com
Find more about "dicotyledon" instantly with Live Search
See a map of "dicotyledon" in the Visual Thesaurus
www.m-w.com /dictionary/dicotyledon   (65 words)

  
 Comparing Monocots and Dicots
The basic food supply of the world is derived from the seeds and fruits of angiosperms (rice, wheat, corn) and fibers, wood, drugs, and other products of great economic value.
The studies by John Ray in the 1700's on the structure of seeds led him to discover the difference between monocotyledon (monocots) and dicotyledon (dicots) plants.
There are estimated to be about 165,000 different types of dicots and 55,000 types of monocots.
www.msnucleus.org /membership/html/k-6/lc/plants/4/lcp4_2a.html   (347 words)

  
 Olympus MIC-D: Brightfield Gallery - Dicot Leaf Epidermis
The dicot plant genus Sedum includes several hundred species, which are generally classified as succulents, and which have thick leaves able to withstand a drought.
The digital image below illustrates a stained thin section of Sedum dicotyledon epidermal cells with numerous stomata, each having guard cells encircled by subsidiary cells.
Leaves, which are present on almost all vascular plants, are a main appendage of the stem and represent the principal site of photosynthesis.
www.olympusmicro.com /micd/galleries/brightfield/dicotleafepidermis.html   (279 words)

  
 The Soybean Seedling   (Site not responding. Last check: 2007-11-02)
Dicotyledon: Dicotyledon embryos usually have two cotyledons (or 'seed leaves') that store food enabling the plants to start to grow.
Dicots usually have broad leaves with netted veins, and flower parts in multiples of four or five.
Cotyledon: 'Seed leaf,' usually stores food in dicotyledons and absorbs food in monocotyledons.
www.amnh.org /learn/biodiversity_counts/ident_help/Parts_Plants/soybean_seedling.htm   (107 words)

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