One is the horde name for the skill the other is the ally name.
U been drinkin a lot lately?
Malfurions gift is the 2 lvl talent which pretty sure will be the one that reduces Tranq cd, the other one made no sense ever. Gift of nature is the passive healing increase that druids get when choosing resto specialisation. As such it does not have multiple levels and as such it never will be able to reduce Tranq CD for 2.5/5 min.
In the first patch note only the reduction through gift of nature was listed. It was an obvious mistake they seem to have fixed later with listing malfurions gift as the tranq reduction talent but i guess they forgot to delete the gift of nature entry.
Patch 4.1 is live now - Gift of Nature does NOT reduce the CD of Tranquality, so they fixed the typo. Only Malfurion's Gift (talent in the 4th tree) will reduce it to 3 mins. And it frekin rocks!!!!