There seems to be some controversy over whether Hoya globulosa and Hoya villosa are one in the same.  Christine Burton seems to think that they are.  I try to stay away from controversies, but my H. villosa leaves have rippled edges and H. globulosa does not.  I doubt that I will ever see blooms on my villosa as it just does not do that well for me.  Here is one final photo of  Hoya globulosa, before we move on.