阅读王昌龄的《送魏二》，回答问题   。 

                                                                                                                                   《送魏二》^①

                                                                                                                  醉别江楼橘柚香，江风引雨入舟凉。
                                                                                                                  忆君遥在潇湘^②月，愁听清猿梦里长。
      【注释】  ①诗作于王昌龄贬龙标尉时。②潇湘：潇水在零陵县与湘水会合，称潇湘。