As the title says, there's a typo in the command for "/mt botaniaOrchid". Orechid has an 'e' in it. The botaniaOrechid command is unrecognized, but is spelled that way on the
Botania support page: http://minetweaker3.powerofbytes.com/wiki/ModTweaker:Botania_Support.

8c974ec
There you go ;)