At the second in time, there isn’t a clear indication on learn how to receive Alolan Exeggutor by way of evolving. I, as effectively with customers on redditdeveloped Exeggcutes they usually developed into a traditional Exeggutors.
Based on the announcementit appears to be implied that it could solely be obtained by way of catching for now. The preliminary announcement of Alolan types states Niantic shall be releasing further information with reference to this, so there are certain to be further bulletins sooner or later.
I seemed by way of the Pokédex for Pokémon who’ve evolution variants simply to make sure, and the Pokédex exhibits which Pokémon can evolve into the completely different types.
Exeggcute easy does not have that, and Alolan Exeggutor is proven in its place type of Exeggcutor alone.