I'm not a seed source right now, and I'm not looking for D. capensis. I hope someone with something interesting responds to you, regardless of whether they are looking for D. capensis.
I have a different suggestion if you are interested, for a couple very basic cuttings, for free. I've been interested in how we can send plant material (not just CPs) through the mail easily and safely for the cost of a single stamp. This would accelerate the process of distributing interesting plants. I'm thinking small leaves, cuttings, roots, plantlets, seeds, gemmae, etc. that can hopefully make it past the USPS requirements for first class letters (60 cents).
The main USPS requirement is that the thickness of a letter has to be less than 1/4 inch, so significant padding is not allowed. Rigidity of the envelope is a problem. The plant material also has to survive the USPS rollers, which tend to crush and kill unprotected material. Is there a solution? There should be. I'm considering a few different options. I hope there is something that works.
With postage costs out of hand these days, it would be nice if there was a way to send material for well under a dollar, which is pretty insignificant. $5 or more is not.
This might not make sense for me to send right now to an area that is too cold (I'm in the SF Bay Area). I'll post separately somewhere on this forum when I'm ready to do this in a few days. I'll perhaps try 3 test envelopes, each with small cuttings of both D. capensis 'Red' and D. binata. These would be completely free, and the worst that could happen is crushing of the material, or perhaps rejection by USPS. I would expect that recipients would post their results, even failures.
Probably most people are aware how easy and productive D. binata and D. capensis are from leaf cuttings in water or on appropriate media.
NineLine, please contact me if interested. I'll open the offer up to 2 or 3 others when I post details elsewhere.
This is long--I hope I'm not hijacking the thread too much.
Again there are many who are able to send seeds, and I hope they do.