Maniacal Dendrologist
Maniacal Dendrologist or twilightforest:Aborist' is an Advancement added to The Twilight forest in Version 3.9.984 (August 7, 2019) and consists of obtaining all wood types and their respective crafting counterparts as well as a few other bits.
To complete the advancement you will need: the Log, Stripped Log, Hollow Log, Wood, Stripped Wood, Planks, Stairs, Slabs, Fence, Fence Gate, Bannister, Pressure Plate, Button, Door, Trapdoor, Sign and Chest Variants of Twilight Oak, Canopy Wood, Mangrove Wood, Darkwood, Timewood, Sortingwood, Transwood and Minewood as well as their respective leaves and saplings. You will also need the 4 obtainable Towerwood Variants as well as Robust and Rainbow Twilight Oak Saplings and the Canopy Bookshelves both regular and Empty.
The final few bits you will need are: Giant Log and leaves Liveroots (Block) Liveroot (Item) Mangrove Roots, Roots, Root Strands, Rainbow Leaves, Hedge Leaves, Leaf Pile, Thorn Rose, Thorn Leaves, Huge Stalk and Beanstalk Leaves.
You will NOT need any foliage like Mayapples or Moss patches Nor will you need any Bugs like Fireflies or Cicadas.