collecting seeds from Rebutia
Hi everyone, I am in need of some info on collecting seeds from Rebutia. I looked online and there are only vague descriptions about harvesting them. I have 4 varieties of Rebutia, non of which bloomed at the same time. The one I am particularly interested in is the Rebutia muscula. I am now trying my hand at sowing cactus seed from a pack of mixed seed from the local hardware store. I thought it would be even more interesting to try to grow from seed that I collected myself. I got about 9 blooms on mine this year. I read that I have to wait until the fruit is overly ripe before taking the seeds. Are the fruits those little bulbous bottoms from the flowers? Do the sites at which the flower formed become a little Rebutia? I find that the info given here is very reliable and I appreciate all the help I have been previously given. So any tips, experiences or links would be great.