variety? There is only one variety of Sago palm. Unless you are referring to sex (that is a female). Seeds are only going to be viable if there has been some pollinator around and a male in cone somewhere nearby about the same time.
The only cycad called Sago Palm is Cycas revoluta---it's very commonly planted in the Austin area. The photo you sent is of a female cone---not a blossom---cycads don't have flowers, they are not flowering plants. Palmbob's right---the only way to get viable seeds is if there was a male plant with cones nearby. The seeds are located on the inner side of those leaflike sporophylls that make up the cone---the seeds are large and turn bright red as they mature. You ought to check out the Hartman Prehistoric Garden in Zilker Park if you're interested in cycads.
And be careful when you go picking those seeds. I discovered I might be allergic to them after I had picked 30 or so one day. Afterwards, my arms felt like I had worked with fiberglass and were red with raised, itchy, red welts.
I have mini roses that never bloom. And yes you can have, how many? There are a couple of big ones. About the size of grapefriut. The smaller ones have set root already. Have like 40 or more small to medium.
Make sure they are dry, a couple of days. Then I soak them in MG Quickstart a couple of minutes, say 10. Then I plant them almost on top of the soil then water them with the rest of whats left of the quickstart and don't touch them. In maybe 2 months they will have roots starting and then you will see a shoot of green palm come up. That's my way. There are other ways.
I was at the Huntington yesterday and they had Cycas Circinalis also called Sago Palm. Whey would the be? They also had the Revoluta called the Sago Palm which it is. This was in the area of the the Owner's Home the area of the cycad collection.
Sago Palm is a real palm, Metroxylon sagu, and is used to produce the staple food in New Guinea and parts of south east Asia. Cycas revoluta has improperly been called Sago Palm and the name has stuck. Which leads to the point that common names are rarely helpful and often misleading. Because Cycas circinalis looks a bit like Cycas revoluta someone has extended the name "Sago palm" to it as well. But because there's no "authority" for common names they're not really right or wrong names, they're just common names.