Huangshan (Tangkou) has one bus to Jiuhuashan directly every day, at about 13:30. If you miss the bus, you can get on any of the buses from huangshan to Hefei. Those bus will pass Qingyang, get off at Qingyang and then it will be very easy to transfer to Jiuhuashan.
Take bus to Hangzhou first and then take tourist bus at Hangzhou East Railway Station to Shenjiamen. The ferry to Putuoshan is available at BAnshengdong Dock.