Tropicals & Tender Perennials: Hoya ID help, please. Both tagged. H. fungii, 1 by RainGazer

RainGazer wrote:
I received both of these plants last year from two different people. Both are tagged as H. fungii, but the striking differences between the two make me believe they have to be completely different. I am just trying to keep the names correct. :o)

This picture shows both plants. The one on the left has the larger leaves with distinct veining, very few silver/white spots and a smooth leaf back, while the one on the right has smaller leaves with many silver/white spots and fuzzy leaf backs.

Neither has bloomed, so that's not an option to help ID. I can take more photos, if needed.

Thanks all!