Welcome to OrchidsForum.com. We are a friendly online community for Orchid Growers all over the world. If you haven't joined yet we invite you to register and join our community. Hope to see you on our forums!

Bulbophyllum tripudians

Discussion in 'Orchid Species' started by naoki, Apr 2, 2019.

  1. naoki

    naoki Well-Known Member

    Messages:
    2,234
    Likes Received:
    898
    Location:
    Fairbanks, Alaska
    This is from Tropical Exotique. I have to do a bit more reading, but I think it is correct ID. But let me know if it is not. Below, I added a couple of my observations from comparison to the illustrations of related species in Swiss Orchid Foundation. What I mentioned below may not be useful to the identification, and the difference I see may be just specific to these individuals.

    P3302934.jpg

    P3302933.jpg

    P3302970.jpg

    Lateral sepals and the flower bract were removed. The hairs on the dorsal sepal and petals are more concentrated on the tip half, and there are more on the adaxial surface.
    P3303015.jpg

    In the following dissected photos, the grid in the background is metric (1mm).

    Right side: lateral sepals. Left: adaxial surface (i.e. facing the column, front side), right: abaxial surface (facing ovary, back side).
    Left side (from top to bottom): flower bracts, dorsal sepals, petals, column and lip.
    For the bracts, dorasl sepals and petals, left side is the abaxial surface, right side is the adaxial surface.
    For the column+ lip, the bottom one has the petals.

    Note the fairly fat and big flower bracts. The bracts of B. refractum and B. wallichii seems to be smaller. Also the dorsal sepals are pretty fat, unlike the slim/narrow dorsal sepals of B. wallichii
    P3303062.jpg

    Lip from above
    P3303105.jpg

    Lip from the side. Some illustrations show that the profile of the lip is quite different from B. wallichii, which seems to have elevated side-lobe like structure (so it looks taller closer to the hinge). Also the tip of the lip seems to be fatter with B. wallichii.
    P3303110.jpg

    Lip from below
    P3303111.jpg

    Column from the above. I think the yellowish and purplish part is a part of anther cap, which looks pretty cool.
    P3303122.jpg

    Column profile view. The lip is removed.
    P3303109.jpg

    Column from below. The green thing looks pretty cool. I'm not sure what it it.
    P3303087.jpg

    Comparison against B. cf refractum (left), which I posted in this thread. Also note that the stem part of the inflorescence is straight in the B. tripudians, but it goes zig-zag with the right plant, and the flowers hang down instead of sticking out side way.
    P3303140.jpg

    Note the difference in the bract sizes. Also, you can see the difference in the shape of dorsal sepal. B. tripudians has much fatter dorsal sepals, but the dorsal sepals of the right plant are longer (relative to the column or lip).
    P3303152.jpg
     
    Last edited: Apr 2, 2019
  2. DanaRaluca

    DanaRaluca Active Member

    Messages:
    423
    Likes Received:
    63
    Location:
    Romania
    Beautiful photos of a very interesting species.
    The diveristy of bulbos never ceases to amaze me!
    :) Thank you for sharing all these photos and information
     
  3. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

    Messages:
    1,626
    Likes Received:
    384
    Location:
    Saskatoon, SK
    Excellent study and photography of this species.
     
  4. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    863
    Likes Received:
    1,209
    Location:
    NYC
    This group of species always did remind me of maple seeds. Excellent photos!
     
  5. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

    Messages:
    6,217
    Likes Received:
    2,059
    Location:
    Redding, California, USA
    Great species and amazing analysis. Thanks for the post.
     
  6. RustyExotics

    RustyExotics Nicholas - It's a terrestrial thing

    Messages:
    271
    Likes Received:
    144
    Location:
    Georgia
    I love when you post these "taxonomic comparison" threads. It's so cool seeing the flower broken down and analyzed so precisely. You make me want to try a dissection so badly!
     
  7. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,471
    Likes Received:
    1,297
    Location:
    New Hampshire, USA
    Great photos and discussion Naoki...I have one from Tropical Exotique as well, although have not bloomed it yet.
     
  8. naoki

    naoki Well-Known Member

    Messages:
    2,234
    Likes Received:
    898
    Location:
    Fairbanks, Alaska
    I just want to mention a link to my blog post about this and related species. It took so long to finish the post...