I am no expert, but I don't believe that the bit about Fenghuang dancong and Wuyi yancha being the same varietal (and that it originally came from the Fenghuangshan area) is universally agreed upon. You can see one other take at:http://tea-obsession.blogspot.com/2008/ ... -wuyi.html
Personally, I'm not inclined to take Hojo's word on this one, but I'd be interested to see more research backing up this statement (or, for that matter, more research backing up anyone's
thoughts on this).
I don't know if anyone can prove conclusively that one came from the other, which area started making oolong style tea first, etc. But given the number of legends about this, and given that there is some debate, even among "experts", I don't know that anyone can state conclusively that they are right.
While the exact meaning of 'dancong' (either historically or in contemporary usage) is also a matter of debate*, I think the point that there are teas from the Phoenix Mountain area that are not dancong and that there may be so-called "dancong" teas (by some definitions of the term) produced elsewhere is well taken.
* viewtopic.php?f=3&t=10814http://marshaln.xanga.com/713413274/tro ... th-a-bush/http://camelliasinensisblog.blogspot.co ... t-dan.htmlhttp://tea-obsession.blogspot.com/2009/ ... ng_12.html
(see earlier posts around the same time, as well as the comments)http://tea-obsession.blogspot.com/2009/ ... aking.html
[Disclaimer: I am not a historian, native Chinese speaker, or tea expert. I am not taking any sides, nor trying to revive old flamewars. Just trying to point out that there are a lot of points of view on this subject, even among folks who have been drinking and / or selling tea for quite some time]
While I have nothing but respect for all the vendors mentioned in this thread, it is unfortunate that most of the English language tea knowledge we're able to get access to comes from vendors. Even the best-intentioned vendors still have to make a living, and, conveniently, what they are selling often goes along with their point of view.