It was probably a good thing that Ianto didn't ask about the tricorder - Sulu could probably talk his ear off over it and all the things it could do, if he was so inclined. Instead, he just shrugged and grinned, taking a clipping of the shrub and the plants growing beneath it and tucking them into one of the compartments in his kit.

"Anything that might eat us, for one," he said with a wink, moving forward, "Or. Well, you know. Plants that are in no way Earth-like in structure or composition. They're not likely to show up on this planet, and all, given that the planet's basic environment is so close to Earth's, but still. Seriously though, I don't want to completely geek out around you and make you realize how bad I can get about this kind of stuff," he added, grinning.