Cycas revoluta, the Sago Palm. I aspired to one when first I saw them in Florida. Nurse Gwen dug one from around her MIL's cycad, potted it and gave to me. After its first winter in the garden, all the fronds were brown and dry and I was sure it was dead. It put out four new fronds. I cut off the old ones. Every year afterward, it multiplied fronds in multiples of 4: first 8, then 12, then 16, then 24. If old fronds died, I cut them off. When it got a leggy stem, I heaped compost around it.
Last spring, the usual whorl of emerging fronds looked odd. It was rounder. It got bigger but the fronds didn't emerge and were overlapped and tan.
It took a while for me to decide there was something amiss. I searched and learned that my cycad was a female, in what most be the nesting mode for a Cycad. The bad part was, by the time I figured it all out, it was too late to have searched for a male cone and pollinated. If there was pollination, it would have to come on the wind from far away. I couldn't remember seeing another cycad in the community. In the fall, I looked and there were little orange seeds there.
Today, I decided to see if there might be any viable seed. I raked out pieces of the 'nest' and found many tiny undeveloped seedpods and about 4 that were bigger than the first joint of my thumb. I took a handful of seeds, floated them in rainwater. All floated except for 2 of the largest. I planted those two and some of the others. I noticed that one rattled when I shook it. I cut it open and there was a seed kernel inside the size of a marble; it had separated from the hard coat. I've since learned that this means that the seed dried out.
Winter was not kind to cycads in this part of the country. Mine has damage and I've cut off some dead fronds. I saw some in Tallahassee in February that were totally brown and looked dead. I hope they'll come back.