The Garden says that what we know as white pine, Pinus Strobus, is always called yellow pine in England; and it adds:

"Fir timber of coniferous trees coming from America is distinguished in the market from Baltic timber by being termed Pine instead of Fir. The different kinds imported are known as Yellow Pine, Red Pine, White Pine or Spruce, and Pitch Pine, according to the nature of the wood, and they are mostly classed as first, second, or third quality, without, however, any distinguishing marks. The chief ports for American Pine timber are Quebec and St. John, the best Yellow Pine being shipped from the former, and the best Spruce from the latter.