Suillus is a merchant in Bavelock, sitting in the park. He buys and sells mushrooms and butterflies. You can pick mushrooms and sell them for a small profit.

Arbog Finger mushrooms
Bought for 2 Pix. Sold for 7 Pix.

Bloodsprout mushrooms
Bought for 2 Pix. Sold for 7 Pix.

Moonflame Stalk mushrooms
Bought for 4 Pix. Sold for 10 Pix.

Red Pearl butterflies
Bought for 15 Pix. Sold for 25 Pix.

Spider Cap mushrooms
Bought for 2 Pix. Sold for 7 Pix.

The Suncrest butterflies
Bought for 10 Pix. Sold for 20 Pix.