Any more information on the 6 buses from Hangzhou West Bus Station to Mt. Huangshan?

From the West Bus Station to Mt. Huangshan, there are six buses which run directly to the Huangshan Scenic Area everyday between 08:00 and 15:10. Do they go to Huangshan Taiping or Huangshan Tunxi 屯溪 or directly to Tang kou ? Do all 6 buses ply the same route or slightly different routes to these different cities which means I need to select the right bus and departure from the West Bus Station?