Thanks for the input.
Some of my ech seedlings never did stand up. They're still lying flat on the surface, and I just don't foresee them ever standing up after all this time. Funny, the cotyledon leaves still look green and healthy, but the stem keeps elongating while on the surface of the wet vermiculite. After all this time on the wet vermiculite, I can't believe they haven't totally rotted. I guess I should prick those out and leave the normal, upright seedlings.
The begonias are still tiny specs, and I need a magnifying glass to really see them.
Karen