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 umbellatum

Discussion in 'Orchid Species' started by naoki, May 12, 2021.

  1. naoki

    naoki Well-Known Member

    Messages:
    2,468
    Likes Received:
    1,189
    Location:
    Fairbanks, Alaska
    I got this from Troy Meyers as a seedling about 5 years ago (Dale Borders' cross). I think this is the second blooming. It is a fairly slow grower for me, and it doesn't retain leaves well. I'm growing it at a cold-end of intermediate, and I wonder if it needs more warmth.

    I saw a table comparing this species with other related species:

    Ya, J. D., Guo, Y. J., Liu, C., Cai, J., Dong, G. J., Jiang, H., & Li, D. Z. (2019). Bulbophyllum reflexipetalum (Orchidaceae, Epidendroideae, Malaxideae), a new species from Xizang, China. PhytoKeys, 130, 33. (link to full text)

    B. umbellatum is supposed to have emarginate leaf apex (split) and B. guttulatum has round leaf apex. This plant has round leaf apex. The color of flowers seem to match with B. umbellatum (unless this is an extremely pale form of B. guttulatum). Keys in Flora of China (link) uses the shape of wings under the column: acute (pointy) for B. guttulatum vs round wings for B. umbellatum. My plant has the round wings. So I think the ID is correct, but I appreciate your opinion.

    P5040035.jpg P5040044.jpg P5040073.jpg P5040026.jpg
     
    Last edited: May 12, 2021
    GaryYG, W. Malewa, J E and 2 others like this.
  2. naoki

    naoki Well-Known Member

    Messages:
    2,468
    Likes Received:
    1,189
    Location:
    Fairbanks, Alaska
    I did a bit more research, and after looking at illustrations at Swiss Orchid Foudation, this is likely to be correct B. umbellatum. Their illustration doesn't seem to show pronounced split leaf tips. Also, B. guttulatum has a long, thread-like, pointy part at the tip of the column (just below anther cap), which my plant doesn't have.

    B. guttulatum with the pointy column tip.

    [​IMG]
    © G. Seidenfaden. 1992. Bulbophyllum guttulatum (Hook.f.) N.P.Balakr.. Swiss Orchid Foundation at the Herbarium Jany Renz. Botanical Institute, University of Basel, Switzerland.



    B. umbellatum (type)
    [​IMG]
    © G. Seidenfaden. 1973. Bulbophyllum umbellatum Lindl.. Swiss Orchid Foundation at the Herbarium Jany Renz. Botanical Institute, University of Basel, Switzerland.

    B. umbellatum (several forms)
    [​IMG]
    © G. Seidenfaden. 1973. Bulbophyllum umbellatum Lindl.. Swiss Orchid Foundation at the Herbarium Jany Renz. Botanical Institute, University of Basel, Switzerland.
     
    J E likes this.
  3. J E

    J E Jaime Escobedo

    Messages:
    214
    Likes Received:
    84
    Great info + plant!
     
    naoki likes this.