>> Displaying both, labeled, in a photo makes the difference obvious.
I agree! I wasn't sure what was what in alyssum seeds until after I tried germinating some "chaff" on a coffee filter. It seemed to have around 500% germination, so lots of things were seeds that I didn't THINK were seeds.
By the way, the PVC shells for my seed sieves are PVC DWV Sewer & Drain Adapters ("DWV" is the key word).
I got the idea from Katlien over in DG years ago:
I wrote a rather poor "Idea" about using hardware cloth to sieve seeds. I wish I could edit that and add photos!
http://garden.org/ideas/view/R...
