Hey, williewillus here.
Tldr: This is the port and unofficial continuation of Vazkii's wonderful mod Botania from Minecraft 1.8.9 to Minecraft 1.10.2 (build 320).
From Build 321 on, Vazkii will be developing Botania again. So please go back to the link above for newer versions.
Please see this note from Vazkii regrading permissions to distribute these few versions: http://vazkii.us/uncategorized/1-8-botania-permission-statement/
If you are looking for the alternate textures by futureazoo, they have been split into a separate resource pack due to technical changes behind the scenes. You can grab the .zip file here: https://github.com/williewillus/Botania/tree/MC19/alt_resources
The Garden of Glass jars can be found at the official Garden of Glass project page: http://minecraft.curseforge.com/projects/botania-garden-of-glass