Any help would be very welcome.
First, this variegated tree at the University of Reading. I managed to convince myself it was a Zelkova of some kind
but looking back at the pictures now I think that is just pony poo.

6, 060813 by John Jearrard, on Flickr
Young plant, growing on a 2m standard trunk. That's about the only intelligent thing I can think to add. It had leaves and stuff.

5, 060813 by John Jearrard, on Flickr
The second plant was growing at Hidcote. It must be a bulb of some sort, I just don't recognise it. Maybe it's one of those Scilla that aren't Scilla any more.

3, 060813 by John Jearrard, on Flickr

4, 060813 by John Jearrard, on Flickr
And finally a purple leaved thing also growing at Hidcote. I was convinced it was an Impatiens and the only one I have seen like it was Impatiens balansae but I'm thrashing around in the dark really.

2, 060813 by John Jearrard, on Flickr

1, 060813 by John Jearrard, on Flickr
Anybody got any ideas?