Not sure if you already mentioned it, but have you joined the
Bromeliad Forum? It's been a while since I visited last but I thought they had several Tillandsia growers in Australia.
Also, if you haven't already tried contacting these nurseries...
Bird Rock Tropicals and
Rainforest Flora.
Have you joined Flickr? The
Tillandsia group has 277 members. I've received Tillandsia seeds from a Flickr friend in Brazil.
It's rather interesting that you seem to shelter your Tillandsias from the rain. I'd
love to have even a little summer rain! But nope. We only get a little rain when it's cool/cold and the Tillandsias don't really want/need it. Well... that's the interesting thing. My tree has at least 100 Tillandsia aeranthos on it. They are all seed grown (as opposed to divisions) so they are all different. They don't all have the same exact range of growing temps. But I wonder how much difference there is in their ranges. The individuals that can take the most advantage of the winter rains will out compete the other individuals. So the population will adapt over time to the local conditions. The time it takes for the population to adapt depends on the amount of difference there is in growing temps.
On
my Youtube I have a couple videos of the wind disseminating some seeds of the Tillandsias on my tree. I've seen the hummingbirds pollinate aeranthos but haven't yet seen them pollinating ionanthas. For the first few years the ionanthas didn't have any pods develop. But now they usually do. I guess somebody is pollinating them.
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