Dick,
It looks like the two trees of Dennis Vojtilla - Nothofagus and Crataegus- have their tags mixed up. The first one - labelled Nothofagus- looks like a Crataegus, and the second one - labelled Crataegus- has leaves that clearly look like Nothofagus antarctica. Also, the broom style that the second label refers to, is more befitting to the first tree, while the clip-and-grow method's result can be seen on the second one.
I noticed it because I happen to be very fond of the species Nothofagus antarctica, even though here in SoCal it doesn't grow well (I still have a small one in my backyard, that is hanging on for dear life).
I hope you don't mind me mentioning this...