I'm not sure that I understand the problem that you're having. It looks like the odd numbered rows may be the RS and the even numbered rows may be the WS. If you follow the directions as given for A, E, C and D just as they are written for the rows, does something strange happen to the pattern of leaves on the RS? This pattern is different from the ones you may be used to where the twisted st is only worked on the RS rows. What happens if you follow the directions as given?
The online book that you link to looks wonderful. Thanks very much for the link.