there is a bug with quests were you can do part of the quests before you hear about from the questgiver. With 'clearing the path', i slew most of the snakes while i collected the flowers, and they dont counted for the real quest.
And the quest about the slimefungi is the same, more or less. There are fungi visible before i get the quest, and im very curious so i tried to pick they, but they dont produced the quest item. By the way, the description of the slimefungi is german.
It is a great game, thank you