User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 8 of 9

Thread: Drosera plants

  1. #1
    Moderator Cindy's Avatar
    Join Date
    Aug 2001
    Location
    Singapore
    Posts
    2,435
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Drosera plants

    From my records, they could be any of the following...but what exactly? TIA!!!

    D. spatulata
    D. tokaiensis (Kagoshima, Japan)
    D. rotundifolia
    D. intermedia (Roraima, Venezuela)
    D. nidiformis







    Cindy

  2. #2
    Cthulhu138's Avatar
    Join Date
    Feb 2011
    Location
    Boston, MA
    Posts
    3,413
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    1- rotundifolia
    2- intermedia
    3- intermedia
    4- ?

  3. #3
    Devon's Avatar
    Join Date
    Apr 2009
    Location
    Ottawa, Ontario, Canada
    Posts
    1,945
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    1. D. tokaiensis
    2. D. intermedia
    3. D. anglica from hawaii maybe? Possibly D. intermedia too though
    4. D. intermedia
    Last edited by Devon; 02-21-2014 at 07:39 AM.

  4. #4
    Hello, I must be going... Not a Number's Avatar
    Join Date
    Nov 2006
    Location
    Los Angeles, CA
    Posts
    7,506
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    best guess at this point
    1) D. tokaiensis
    2) D. intermedia
    3) D. nidiformis
    4) D. rotundifolia - the flat margin on the petiole (see leaf at 3:15 O'Clock) is pretty typical

    Flower and seeds will reveal all
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

  5. #5
    Hello, I must be going... Not a Number's Avatar
    Join Date
    Nov 2006
    Location
    Los Angeles, CA
    Posts
    7,506
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Found links to these from an old post of yours. Good record keeping
    http://www.greenculturesg.com/forum/...ce-and-set-up/
    D. tokaiensis (Kagoshima, Japan)

    D.intermedia (Roraima, Venezula)
    Last edited by Not a Number; 02-21-2014 at 07:44 AM.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

  6. #6
    Devon's Avatar
    Join Date
    Apr 2009
    Location
    Ottawa, Ontario, Canada
    Posts
    1,945
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Doesn't D. nidiformis have more of a flat top the leaf and not a slightly pointed tip? It also has a dip in the leaf most of the time and I don't see that in pic #3.

    I also find that young D. rotundifolia plants have much wider lamina than pic #4, such as the one in this pic found on Google images: http://www.asergeev.com/pictures/arc...42/jpeg/03.jpg I'm actually going to change my #4 vote to D. intermedia because it looks very close to D. intermedia seedlings I have seen such as these I also found on a Google search: http://i343.photobucket.com/albums/o...intermedia.jpg

  7. #7
    Hello, I must be going... Not a Number's Avatar
    Join Date
    Nov 2006
    Location
    Los Angeles, CA
    Posts
    7,506
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    D. rotundifolia varies a lot depending on where it is from. Plants from colder climates tend to have shorter petioles from those in warmer areas. The alpine plants like those from Grass Lake or Lake Tahoe region are much more compact than those from Big Lagoon, CA.

    The leaves on D. nidiformis are curved or bowed so the shape looks different depending on the lighting and angle of view.

    This photo illustrates the bowing (pardon the blur)

    Taken from this angle the leaf looks like this


    Here is another leaf (not as curved) from different angles




    These were taken in sunlight. If I used a flash it would have made the leaves appear even flatter and any curvature less obvious. It's because of curvatures like this that naturalists will flatten leave specimens to use for their illustrations.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

  8. #8
    Devon's Avatar
    Join Date
    Apr 2009
    Location
    Ottawa, Ontario, Canada
    Posts
    1,945
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hmm, I'm still skeptical.

    I took a couple pictures of a recently transplanted D. intermedia "Cuba" that looks younger than Cindy's, but you can see the leaf shape is almost exactly the same.

    Here they are compared:




    With D. nidiformis, you're be able to see the dip/bowing no matter what the lighting conditions are like because the tentacles lean inwards at the middle. I can't see any bowing in Cindy's pic.
    Here is a pic of D. anglica "Hawaii" compared with Cindy's. The pic is from Sundew grow guides.

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •