Authenticated (7/11/03) by Hugh Singe, Editor of Plant Talk, the magazine on plant conservation worldwide.
http://www.plant-talk.org
Calcareous: Containing free calcium carbonate, chalky.
Endemic: A species or taxonomic group that is only found in one particular country or geographic area.
Ex-situ: Measures to conserve a species or habitat that occur outside of the natural range of the species. E.g. in zoos or botanical gardens.
Whorl: In animals, the spiral or convolutions in the shell of a snail. In plants, a set of leaves, flowers, or branches that spring from a stem at the same point and encircle it.