"Martin Rand" wrote in message
...
No. 1 is a Prunus (Cherry).
No. 2 is an Acer (Maple).
No. 3 is a Taraxacum (Dandelion).
No. 4 is also a Prunus.

I shouldn't have been so categorical about #4. As Monique points out,
without counting the styles you can't rule out Pyrus etc.