In article ,
"Ann Heanes" writes:
|
| Where would Britain be today in regards to its supply of plants had
| your
| forefathers not explored the world and returned with what are considered
| today as being plant treasures....where would any country be.......H
|
| There'd maybe be a few more Elms, much less Russian vine ?

No. The recent outbreak of Dutch elm disease was from timber
with bark on, not plants. Nobody knows what the cause of the
similar decline in paleo/meso/neo-lithic times was.

| ......and don't even mention knotweed!!

Why knot?


Regards,
Nick Maclaren.