I recently discovered a "Mother" Trident Maple right across the street and this year, I think because of the mild Winter it had a bumper crop of seeds.
I harvested a bunch, stuck them in to the dirt and here's the result.
[url=https://s26.photobucket.com/albums/c145/djlen/?action=view¤t=IMG_3706b.jpg][img]https://i26.photobucket.com/albums/c145/djlen/th_IMG_3706b.jpg[/img][/url]
[url=https://s26.photobucket.com/albums/c145/djlen/?action=view¤t=IMG_3703b.jpg][img]https://i26.photobucket.com/albums/c145/djlen/th_IMG_3703b.jpg[/img][/url]
[url=https://s26.photobucket.com/albums/c145/djlen/?action=view¤t=IMG_3704b.jpg][img]https://i26.photobucket.com/albums/c145/djlen/th_IMG_3704b.jpg[/img][/url]
I'm guessing I've got about 90% germination rate on these cuties and some are still germinating. With Maple, freshness is the key. They came off the tree and into the soil.