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The plant division Gnetophyta or gnetophytes consists of three genera of woody plants grouped in the gymnosperms. The living Gnetophyta are in the genera Gnetum (family Gnetaceae), Welwitschia (family Welwitschiaceae), and Ephedra (family Ephedraceae). The gnetophytes differ from other gymnosperms (conifers, cycads, and ginkgos) in having vessel elements as in the flowering plants. In some classifications, all three genera are placed in a single order (Gnetales) but in others distributed among three orders, each containing a single family and genus. Most morphological and molecular studies confirm that Gnetum and Welwitschia diverged from each other more recently than from Ephedra. From Wikipedia under the
GNU Free Documentation License which division of seed plants is represented by one living species? Q. A)cycadophyta B))gnetophyta C)ginkgophyta D)coniferophyta Asked by computer - Sun Jun 17 03:06:01 2007 - - 2 Answers - 0 Comments A. C)ginkgophyta Gingko biloba Answered by Labsci - Sun Jun 17 03:10:10 2007 please please help me? Q. 1. List the three main organs of a seed plant, and describe the functions of each one. 2. Identify the two main groups of seed plants, and explain what the name of each group means. Angiosperms and Gymnosperms 3.List the main subgroups of seed plants that make up the two groups you listed in Question 2 above. Angiosperms --> Magnoliophyta, Liliopsida Gymnosperms--> Ginkgophyta, Gnetophyta, Cycadophyta, and Pinophyta 4.Compare and contrast alternation of generations in ferns and seed plants. Fern gametophytes have prothalli, and they do not reproduce at all through seeds, so seeds vs. spores Asked by ha thats what they all say - Thu Apr 9 16:57:19 2009 - - 1 Answers - 0 Comments A. 1.the organs include the leaf, stem, and root 2.Angiosperms are flowering plants. Angiosperms are the biggest group in the plant kingdom. They have true roots, stems, leaves and flowers. They also have seeds.The seeds are formed when an egg or ovule is fertilized by pollen in the ovary. The ovary is within a flower. The flower contains the male and/or female parts of the plant. Gymnosperm (Gymnospermae) is a group of spermatophyte seed-bearing plants with ovules on scales, which are usually arranged in cone-like structures 3.angiosperm- Ceratophyllaceae,Monocots ,Chloranthaceae,Magnoliid s,Eudicots, gymnosperm- Cycads,Conifers, Gnetophytes, Ginkgo Answered by Kathryn L - Thu Apr 9 17:14:08 2009 The tree ferns that are common in today's tropical forests are members of this division...?
Q. a. Lycophyta b. Psilophyta c. Sphenophyta d. Pterophyta e. Cycadophyta f. Gnetophyta g. Anthophyta h. Coniferophyta i. Ginkgophyta j. Spermatophyta i. The tree ferns that are common in today's tropical forests are members of this division. ii.The giant ground pines of the Carboniferous Period often reached heights of 50-100 feet. They were members of this division. iii. Flowering plants are members of this grouping. iv. This is heterosporous with well-developed seed and pollen-bearing cones. v. There are only 30-known species of plants in this division. It is characterized by having silica in the stem for support. Asked by lbrh12 - Sun Oct 19 14:28:34 2008 - - 1 Answers - 0 Comments A. d. Pteridophyta Answered by John S - Sun Oct 19 18:53:00 2008 From Yahoo Answer Search: "Gnetophyta"
 e-ciencia.com e-ciencia.com, Spain Este es el caso de una Gimnosperma del Phylum Gnetophyta y en concreto del orden de las Welwitchiales. Dentro de este orden tenemos la familia Welwitchia representada por una sola especie Welwitchia mirabilis. Esta planta vive en el desierto de Namibia ... From Google News Search: "Gnetophyta"  www2.hu-berlin.de 450px x 570px | 113.70kB [source page] Kalkplatte mit einer fossilen Pflanze Beschreibung In hoher Aufloesung anzeigen 1024x809 Pixel ca 425 KB  waynesword.palomar.edu 228px x 366px | 38.80kB [source page] Welwitschia And Ephedra Remarkable Genera Of Gymnosperms  waynesword.palomar.edu 235px x 338px | 32.50kB [source page] flows over the Namib Desert Although the desert receives little or no rain the fog drip is apparently sufficient to sustain these remarkable plants that grow nowhere else on earth From Yahoo Image Search: "Gnetophyta"  gnetophyta.wordpress.com gnetophyta Mon, 21 Dec 2009 01:40:21 GM So, another year draws to a close, and for once, I am done exams EARLY. With that said, onward with the quiz-thing! 1. What did you do in 2009 that you'd never done before?: Well, this is going to be a fun one! ... gnetophyta.wordpress.com gnetophyta Sun, 11 May 2008 23:02:31 GM things have a funny way of working out in the end. i'm so giddy. so. so. giddy. where do we go from here? gnetophyta.wordpress.com gnetophyta Wed, 04 Jun 2008 16:14:32 GM i decided to finally take the bull by the horns and start eating normally and exercising again. i've really let myself go the last month, and is it ever starting to show. in any case, i already feel better after having gone on a ... From Google Blog Search: "Gnetophyta" |
Gnetophyta: An Enigmatic Group of Seed Plants
Phylum Gnetophyta (Vessel Bearing Gymnosperms)