Shop Orchid Care OrchidTalk Orchid Forum Weather Station Links Nursery

Welcome to OrchidTalk Orchid Forums


The Friendliest Orchid Community on the Internet!


  •  » Learn to Repot your Orchids
  •  » Learn Orchid Care Tips and Secrets
  •  » Find the perfect Orchid for your Growing Environment
  •  » Chat with Orchid Growing Professionals

OrchidTalk - "Bringing People Together to Grow Orchids Better!"


Let us help you grow your Orchids better; Join our community today.


YES! I want to register an account for free right now!


Register or Login now to remove this advertisement.

Page 1 of 2 12 LastLast
Results 1 to 10 of 16

My sheath became a leaf

This is a discussion on My sheath became a leaf within the General Orchid Culture forums, part of the Orchid Culture category; I think it was Jason who said when the (Catt) leaf unfurls, the sheath is ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    Cinderella is offline Senior Member
    Join Date
    Jun 2004
    Location
    Louisville, KY
    Posts
    486

    Default My sheath became a leaf

    I think it was Jason who said when the (Catt) leaf unfurls, the sheath is either there or not. Is this always the case? Bifoliate and unifoliate? Anyway, I thought this was a sheath and then I realized as it grew that it was a leaf. I felt like a LOSER!
    Attached Images Attached Images  

  2. #2
    dosal is offline Member
    Join Date
    May 2004
    Location
    South Carolina
    Posts
    94

    Default

    Butttttt this is a bifoliate plant. Why would you expect it to get just one leaf all of a sudden?

  3. #3
    RSJ
    RSJ is offline Senior Member
    Join Date
    Oct 2004
    Location
    WA State
    Posts
    319

    Default

    I have never heard the 'sheath is already there when the leaf opens' rule. Is that factual? I've never even read it anywhere. If that is the case, then none of my summer blooming catts acquired this winter will bloom on their new growths at all and that would be just too irritating (I'd probably have to buy one in bud from RVO just to make me feel better...)


    RSJ

  4. #4
    bench72's Avatar
    bench72 is offline Moderator
    Real Name
    Tim
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Paphiopedilums
    Join Date
    Jan 2005
    Location
    Sydney, Australia
    Posts
    5,480
    Member's Country Flag

    Default

    actually my Laelia anceps did this... ie it had this one leaf and what looked like a sheath.. and then all of a sudden... it was a leaf If it is possible for a sheath to turn into leaft then... I think mine did this because I didn't have the right condition for it, ie it was not getting enough light... aaah well, next year and if it wants light, then it will get light

    cheers
    Tim

  5. #5
    Gin's Avatar
    Gin
    Gin is offline Senior Member
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    All types
    Join Date
    Sep 2004
    Location
    Missouri
    Posts
    4,831
    Member's Country Flag

    Default

    That is a new one on me Gin

  6. #6
    Jmoney's Avatar
    Jmoney is offline Senior Member
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    paphs, phrags, catts, vandas
    Join Date
    May 2004
    Location
    West Hartford, CT
    Posts
    2,978
    Member's Country Flag

    Default

    Quote Originally Posted by RSJ
    I have never heard the 'sheath is already there when the leaf opens' rule. Is that factual? I've never even read it anywhere. If that is the case, then none of my summer blooming catts acquired this winter will bloom on their new growths at all and that would be just too irritating (I'd probably have to buy one in bud from RVO just to make me feel better...)


    RSJ

    I've never had a catt bloom without a sheath, although I hear that is possible in rare instances. And by the time the leaves open up fully, unifoliate or bifoliate, the sheath is either there or it ain't. If you see a sheath start to develop after the leaves open up without a sheath, please let me know because that would be a case report worthy of an article.

    Back to that bifoliate, don't give up just yet. That 2nd leaf isn't open yet; who knows what might be inside.

  7. #7
    Jmoney's Avatar
    Jmoney is offline Senior Member
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    paphs, phrags, catts, vandas
    Join Date
    May 2004
    Location
    West Hartford, CT
    Posts
    2,978
    Member's Country Flag

    Default

    Quote Originally Posted by bench72
    actually my Laelia anceps did this... ie it had this one leaf and what looked like a sheath.. and then all of a sudden... it was a leaf If it is possible for a sheath to turn into leaft then... I think mine did this because I didn't have the right condition for it, ie it was not getting enough light... aaah well, next year and if it wants light, then it will get light

    cheers
    Tim

    Sheaths are usually much thinner than bona fide leaves. I suppose you can have some weird differentiation going on at the apex of the pseudobulb, since very occasionally a bifoliate will throw a third leaf, or a unifoliate will throw two leaves on a growth. Whether that's a conversion of a sheath into a leaf, who knows. I have a unifoliate catt hybrid with a new growth that has two leaves *and* a sheath. Every other growth before it has one leaf. Go figure.

  8. #8
    dosal is offline Member
    Join Date
    May 2004
    Location
    South Carolina
    Posts
    94

    Default

    As a matter of fact, Jason, I have two plants without sheath that are in bud right now. These are first time bloomers since I got them as seedlings. One is out of a compot and this is the only one so far that did this.

  9. #9
    Cinderella is offline Senior Member
    Join Date
    Jun 2004
    Location
    Louisville, KY
    Posts
    486

    Default

    OK, I hope you all know I was kidding that the sheath turned into a leaf....I meant that I thought it was a sheath and then realized it was actually a leaf.

    Doris, I do have a hybrid, C. Hawaiian Snow Candy 'Lighting Blaze' x Ctna. Maui Maid 'Fringe' that has both bifoliate and unifoliate leaves. In fact it just put up a bud from one leaf...which later blasted.

    I have had a Pot. bloom without a sheath at all, I realize this is possible.

  10. #10
    LJA's Avatar
    LJA
    LJA is offline OrchidTalk Tech Admin
    Real Name
    Louis J. Aszod
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya
    Join Date
    Feb 2003
    Gender
    Male
    Location
    Clarksville, Arkansas
    Posts
    3,778
    Member's Country Flag

    Default

    Well, I've never had a leaf *turn into* a sheath, but many bifoliates can trick you into thinking that their second leaf *is* a sheath. One would think that a bifoliate will always be bifoliate, but they can often come up with just one leaf on a new growth if their care has been iffy. Many of my Catts set buds without growing a sheath at all. The buds just begin to form at the leaf's apex after the leaf matures. Don't know what causes this sheathlessness though, since previous growths on the same plant may have had sheaths.

    Here are some pics to illustrate. The first with the violet flower is Blc. Inger's Sweet Revenge, no flower sheath at all on this growth.

    The second is C. walkeriana alba X Bc. Donna Kimura, no sheath on the blooming growth on the left, but a sheath, now brown and dried, which had formed on the previous growth on the right. The third is the same plant, showing just the growth in bloom, sheathless. Again, why this happens, I have no clue...
    Attached Images Attached Images    

Page 1 of 2 12 LastLast

Similar Threads

  1. Is this a sheath
    By nyortiga in forum Cattleya Information
    Replies: 35
    Last Post: October 12th, 2009, 05:33 AM
  2. change from w/o sheath to w/sheath
    By KC C in forum New Growers: Ask the Senior Members
    Replies: 11
    Last Post: September 7th, 2007, 10:38 AM
  3. *screech* IT HAS A SHEATH!
    By sand_tiger86 in forum General Orchid Culture
    Replies: 15
    Last Post: August 22nd, 2007, 05:27 PM
  4. Could my Catt be in sheath?
    By Elena in forum Genus Specific
    Replies: 6
    Last Post: June 10th, 2007, 04:46 PM
  5. Sheath to cut or not to cut that is the ?
    By WolfinKW in forum General Orchid Culture
    Replies: 4
    Last Post: June 5th, 2005, 11:37 PM

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
  •  
OrchidTalk --An Orchid Growers Discussion Forum brought to you by River Valley Orchidworks. A World Community where orchid beginners and experts talk about orchids and share tips on their care, cultivation, and propagation.