Posted: 06/04/2014 at 22:55
thun-berg-ee-a. [the 'g' in berg, Can be soft as in burger, or hard as in General] The two 'ee's are as in a capital E.
Sometimes thunbergia drops the final 'a' and is replaced by 'ii' In this case. The first 'i' sounds like, as in ink. The second as a capital I.
This same priciple applies to many botanical names, where ia is used and also ii.
That should get you an exam pass.