Pterydophyta

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    • #1130
      victor
      Participant

      why pterydphyta still classified into low degree plant eventhough it has leaves, root etc that is like the high degree plat have?

    • #24186
      mothorc
      Participant

      When I find on Google, they said that “Pterydophyta Spermatophyta: Angiospermae Dicotyledones “, it is Dicotyledones- a high revoluted plant
      http://www.google.com.vn/search?q=ptery … a=N&tab=iw

      :mrgreen:

    • #24194
      mith
      Participant

      They’re ferns i.e. no flowers.

    • #24208
      Poison
      Participant
      quote mothorc:

      When I find on Google, they said that “Pterydophyta Spermatophyta: Angiospermae Dicotyledones “, it is Dicotyledones- a high revoluted plant
      http://www.google.com.vn/search?q=ptery … a=N&tab=iw

      :mrgreen:

      Yes, you didn’t read cafefully.

    • #24223
      MrMistery
      Participant

      There are a few reasons why pteridofytas are classified as inferior to gimnospermes. Here is 2 that come to my mind now
      – They do not have seeds, so it is less probable for the embryo to survive
      – Unlike gimnosperes and angiospermes the plant does not consist entirely of the spropyte… We can still speak of an alternance in generations

    • #24303
      mothorc
      Participant

      terrible sorry everybody

    • #24306
      mith
      Participant

      it’s alright, that’s why we have moderators :D.

      For future reference though, I’d look into the text of the search results…not just the google summary.

      P.S it’s pterophyta

    • #24363
      Poison
      Participant
      quote :

      P.S it’s pterophyta

      As mush as I remember from lab notes, it is PTERIDOPHYTA.
      It is mainly divided into these divisios:
      PSILOPHYTA(=PSILOPHYTES)
      LEPIDOPHYTA
      CALAMOPHYTA
      PTEROPHYTA

      The differences btw Pteridophyta and Spermatophyta: (from lab notes.)
      1-There must be water for fertilization.
      2-Gametophytes live independent from the beginning of its life or from some stage of its life.
      3-Sporophytes grow from zygote to mature without inturruption.
      4-There are no seeds.

    • #24383
      mith
      Participant

      I think it’s just a variant spelling. Both queries were redirected to the fern page in wikipedia.

    • #24400
      MrMistery
      Participant

      My bontany book also says pteridophyta. But many things are spelled differently in different countries. Despite this, I would expect something like this to be spelled the same everywhere because it is latin, no?

    • #24437
      Poison
      Participant

      Pterophyta is a divisio of Pteridophyta. It writes like that in my notes.

    • #24519
      MrMistery
      Participant

      What is a divisio? Do you mean division? As in part?

    • #24523
      biostudent84
      Participant
      quote MrMistery:

      What is a divisio? Do you mean division? As in part?

      Sounds like it 🙂

    • #24525
      MrMistery
      Participant

      It seems strange. I never heard of such a thing… I wounder what is? A familiy, a class, an order?

    • #24526
      biostudent84
      Participant
      quote MrMistery:

      It seems strange. I never heard of such a thing… I wounder what is? A familiy, a class, an order?

      I think it’s a translation thing 😉

      Just remember. Poison thinks about the question in Turkish, then translates her reply into English. Then you read the English reply, then translate it into Romanian (I think that’s what you speak?). The language barrier is easily overcome, but minor translation problems still arise.

    • #24556
      MrMistery
      Participant

      Yeah but that is latin. Don’t we all speak the same latin?

    • #24560
      biostudent84
      Participant
      quote MrMistery:

      Yeah but that is latin. Don’t we all speak the same latin?

      Language evolves, even if it is dead. In England, it is haemoglobin. In America, it is hemoglobin. No one’s going to translate and spell exactly as you do.

    • #24579
      b_d_41501
      Participant

      That’s also why sometimes questions are misunderstood when they are posted. It seems there are a lot of individuals from the Netherlands on here, doesn’t it?

    • #24588
      biostudent84
      Participant
      quote b_d_41501:

      That’s also why sometimes questions are misunderstood when they are posted. It seems there are a lot of individuals from the Netherlands on here, doesn’t it?

      Usually if a European posts a question, anyone from Europe can understand it perfectly. If an American posts, other Americans are able to understand better. There’s nothing wrong with it, and we should all try and post. But that’s just the way it is.

    • #24606
      b_d_41501
      Participant

      Yeah, nothing wrong with it at all. LET THE POSTING BEGIN!!! 😮

    • #24630
      biostudent84
      Participant
      quote b_d_41501:

      Yeah, nothing wrong with it at all. LET THE POSTING BEGIN!!! 😮

      Hehe. It was just a friendly reminder to not poke at the way people post here. As long as the point gets across, no worries!

    • #24634
      b_d_41501
      Participant

      I wasn’t poking fun, I just was trying to put out a reminder that everyone isn’t from the USA as well. No problem 😉

    • #24635
      biostudent84
      Participant
      quote b_d_41501:

      I wasn’t poking fun, I just was trying to put out a reminder that everyone isn’t from the USA as well. No problem 😉

      I know you’re not 😉

      But we have had members in the past that would say things like, “It’s not hemoglobin, it’s haemoglobine!”

    • #24748
      Poison
      Participant

      Divisio is a neutral taxonomic category especially used is plant systematics. I mean it doesn’t have an actual place. It can be everywhere. Some kind of grouping. It is not used so often.
      I think ‘divisio’ IS in latin, at least that’s what our proffessors said. 🙂

    • #24751
      Poison
      Participant

      I made a search in the web. I found results in my language. Maybe the old name of it is DIVISIO. It may be called DIVISION now.

      EDIT:

      I’ve seen that term here too:
      http://www.dutchflowerlink.nl/engels/fl … lature.htm

      It seems that both DIVISIO and DIVISION is correct. Have a look at that:
      http://herbarium.usu.edu/3400taxonomic_hierarchy.htm

    • #24773
      MrMistery
      Participant

      Opps… Guess you are right.. We apologise… Please forgive us 😆

    • #24832
      Poison
      Participant

      No problem, Kids… 😛 😆

    • #25013
      victor
      Participant

      Hey seniors, why do all of you talking about taxonomy?

    • #25021
      MrMistery
      Participant

      The discussion evolved…

    • #113316
      faisa
      Participant

      they need water for fertilisation.no flowers main plant body is sporophytic and

    • #114140
      Anonymous
      Participant

      The Pteridophyta Divsion contains ferns. Ferns are plants with leaves, roots, and stems; but they do not have flowers like most plants. Ferns have special stems, called rhizomes, which grow sideways at the surface or underground. Many leaves grow from rhizomes and make fern colonies. Fern leaves are called fronds. Fronds have a petiole (leaf stalk) and blade (main part of leaf). Each leaf has smaller leaflets called pinnae. Instead of flowers, ferns have sori, which grow directly on leaves. Sori make spores, which travel by wind, water, or animal to new locations where new fern colonies can begin. Since they spread by spores, ferns do not have flowers, pollen, fruits, or seeds.

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