Another cycad, this one from the land down under. Australia has a large genus of cycads called Macrozamia and the specimen below is probably the species a non-australian is most likely to come across; Macrozamia communis, the burrawang. I say probably because M. communis had two other species split out of it in 1998 so some older plants in some collections may be more correctly attributable to these; I know nothing of differentiating these 3.
As you can see there is no real trunk on this girl but probably a big subterranean caudex. That said this one can form a small trunk on occasion. This specimen at San Diego zoo is a female and obviously a well-pollinated one at that. There's 3 ripe cones full of seeds bursting on this one!
This is a good illustration of how the seed cones break down. The seeds are toxic although the Aborigines found a way to denature the poison and get food out of these. Seeds will often germinate near the parent where they drop but can be moved around by small marsupials (and I would guess) big aussie birds which would go for the fleshy stuff around the seed.