《唐诗鉴赏辞典》和多数参考书中是”生“，我查到的多数书法也是用的‘生”

http://pic10.nipic.com/20101021/6026722_212506008900_2.jpg

http://www.daqiangallery.com.cn/UploadFile/201111151457fanzeng01.JPG

http://blog.luohuedu.net/images/new/suoluefile/20032/2008-8/2008816132342229600877.jpg

http://www.hh-book.com/bookpic/20103614543359438.jpg

http://ts3.mm.bing.net/th?id=H.5021208346034366&pid=15.1

http://www.shuhua114.com/upfiles/201132315475916098.jpg

http://www.xlysauc.com/img/2010qp/d/1469.jpg

http://pic11.nipic.com/20101216/3420027_125255439186_2.jpg

也有书法中用“深”的，但我不清楚权威书法家用的什么字，你那儿查到了一些图片吗？谢谢！