Has anyone ever seen this begonia? I came across it on EBay. It really looks like to me a B. Beefsteak with lack of light. I could be very wrong about it. Here is the link:
http://www.ebay.com/itm/Begonia-quadrialata-ssp-quadrialata-Rare-yellow-flower-/220837309105?pt=LH_DefaultDomain_0&hash=item336aedeab1:
Rare Begonia Quadrialata ssp???????
It does look sick and the price is a bit high too.
Here is my B. quadrilata subsp. nimbaensis that I got on eBay a year ago for around $12.
It isn't exactly the same thing but at least the price is a lot better and the plant looks a lot healthier.
http://www.mountainorchids.com/index.php?main_page=product_info&products_id=154&cPath=15
This site has pictures of the regular quadrilata and the subsp. nimbaensis
Now that begonia is a very nice healthy one. I love the chocolate markings too. The one on EBay does look sick and I would never thought it should look like your photo. Also the price is high. Thank you Butch.