Keith, I clicked on your links, the problem is, they're confusing things. Yes, they sell lumber, but they also mill the logs.

The examples you linked to, are descriptions of their milling process, not board classification. In your first link, near the top it says "discover more about sawn lumber", if you click on quarter sawn, the page has two actual pictures of a white oak board. The first picture is of end grain, that is a rift sawn board, the growth rings are neither parallel or perpendicular to the board, they're angled. The second picture is of an angle board view, that board is quartersawn, the rays are prominent, you can see the end grain of the board and the growth rings are perpendicular to the board, unlike the picture above it.

Under those pictures is an illustration of a log cut into plain and quarter sawn lumber. The boards in the logs they are saying are quarter sawn are being cut in the process they describe as rift sawing.

Like I said, theres two different terminologies at work here, and this company is confusing the two. This is like wood finishes, people in the business are loose and fast with information and they don't care if they confuse people.

Tim