I have finally found a Hoya that has nearly black leaves when the first emerge, and strangely enough it is not the plant called H. sp. Black Leaves! It is a plant called Hoya sp. CoXanh 001; I have no idea yet where this plant is from, or what CoXanh is all about. Hopefully I will flower it soon, and find out more about it. Here is a photo of the leaves from this morning: