This vendor has the 'subcordata' (the reddish one).
I've ordered from them before, and their plants are good quality.

Here is a link that might be useful: Eldonaccess.com

Try Plants Delight Nursery. I believe I saw it in their catalog. They do have a website. Very reputable nursery.

Diamond..beware of this plant..LOL.
I bought one this summer, it started losing leaves during shipping..several leaves fell inside the box, and things just got worse as time went by.
They need a LOT of humidity..some sites state they need sun, others say they prefer shade. I even started a post on the Florida Forum, asking if anyone grew this plant and if they did, could they please advise me on its care.
There are two versions of the Christia. One has green and yellow leaves, the other purple and I believe green..They're beautiful plants, definately need a lot of care. But maybe you'll have better luck. Ebay has quite a few for sale..
A guy who I've bought plants from in the past has them for sale on Ebay..He goes by the name, flowercowboyman, also has a nursery called Secret Garden..I think he owns Rare Tropical Plants, too. I believe his Butterfly's go for 12.99 plus shipping.
If you go for it, I wish you the best of luck..Please let me know how it turns out..I'm curious if these plants can really be grown indoors..Or are you in a warm climate where it can be overwintered outside? Toni

I've owned this plant too, and failed miserably with it!

I am new to house plants forum, I just got 2 of each plants from ebay. I am in hot an humid Florida so I'll let you know in about 2 weeks or so if they are still living or not. Doesn't sound too encouraging about these plants. Mine are out on the lanai.
Jan

Jan, yes, please keep us posted on their progress..You got boty colors? They're beautiful plants, the foliage is outstanding.
I was so desparate, I popped in the Fl forum to ask if anyone grew the Christia there..the responses didn't sound promising.
What is a lanai? LOL Toni

It's only been 4 days but so far so good, just thought I share photos.
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Jan, your Christia's are beautiful..I really hope they do well for you..Do you have them in the house or outside? Toni

Toni, thanks! they seems to be happy in my east facing lanai under truss. I hope they continue to be happy. I am going to wait until soil is almost dried before watering again.
Jan

Update on these plants. They are still doing great but I need to find brighter location because the newer leaves dull color. I did research on line for care instruction, it said to put in shady area but I think they need to be in brighter area not direct sun. I am thrill they are doing good so far. Knock on wood!!!!

Okay, I finally got a Christia obcordata from Glasshouseworks a few weeks ago. It looked fine for a few days, but since then it's started dropping leaves, as hopefulauthor described. I too have been puzzled by the contradictory care instructions on line, and wonder if folks here have some experiences to share concerning this fabulous if apparently temperamental species.

Cheers,

Alan