Finally having flowered Hoya sp. SR 2007-13, I wanted to know more.  I did not even have a clue whose accession number started with SR.  I emailed Ric Morier, and he told me that it was the number of Surisa Somadee in Thailand and this plant belonged in the Hoya acuta/verticulata complex.  I surmise that this plant came to Surisa in 2007.