Pokémon Diamond / Pearl / Pokémon professor
Professor Rowan

Pokémon professor · Sandgem Town
Rowan studies Pokémon evolution and gives the player a Pokédex after the Lake Verity encounter.
- Story: His laboratory is a recurring destination for Pokédex progress. Professor Oak visits for the National Pokédex upgrade.
- In the game: See the required 150 Sinnoh species, then visit Rowan’s lab. Manaphy is entry 151 but is excluded from the original Diamond/Pearl National Dex sighting requirement.
Story spoilers.
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