It seems not right as the book appears to mean that only the Time Meal grows Merlinia.

Devil's Snare seems to be slowing mobs down, but not only, like the guidebook says, players.

The page where the picture of Scientia settles shows Seed of Knowledge at the bottom, but not Scientia, which follows the overall format, thus I took a look at the lang file, and found tile.uniquecrops.cropknowledge.name=Seed of Knowledge, maybe it should be tile.uniquecrops.cropknowledge.name=Scientia? Moreover, I found three different names for that musical crop: Musica, Musical Plant, and Musical Essence, which is a bit confusing.

And also, the crop block shows the name of corresponding seed names in Hwyla etc., where I think the crops' names should be shown, as can be seen in the screenshot below.