I have only recently acquired Hippeastrum solandriflorum, and my bulbs are not yet mature, so I have no pictures, but photographs can be found on the internet, and it is quite spectacular, with elongated white trumpet shaped flowers. It is from Venezuela, and grows in seasonally flooded savannah, experiencing a dry dormancy in winter. I am growing mine in pumice in deep pots with about 1/3 of the bulb exposed. They are on one of the heated benches.