If you still need more, Muser has a Japanese maple as well as some other meshes in their mesh pack here: http://adf.ly/2262836/http://www.mediafire.com/?2oz5aah7ky50bel (http://adf.ly/2262836/http://www.mediafire.com/?2oz5aah7ky50bel)
A cherry blossom mesh: http://adf.ly/2262836/http://www.mediafire.com/?2b0rb9scmvka8ra (http://adf.ly/2262836/http://www.mediafire.com/?2b0rb9scmvka8ra)
Glave also has a particle to go with the cherry blossom: http://adf.ly/2262836/http://www.mediafire.com/?e532kll6b9m234x (http://adf.ly/2262836/http://www.mediafire.com/?e532kll6b9m234x)
I hope you've found what you are looking for.