When I expressed interest, a friend sent me some seeds for Rainbow Eucalyptus (E. deglupta). I started them on 1/24.
-- photo was taken just after setting up. The thermostat-controlled heat mat has maintained temp at approx. 74°F has
I discovered this solitary seedling a couple of days ago. It was thread thin weak looking thing and I wasn't sure it would survive, but it has colored up and is looking more likely to grow since I moved it under the t5 6500K. I really hope this is it (and not some random stray weed.... )

...online search results of eucalyptus cotyldons and hypocotyl seem to match...
