(Kelly of the Clue Crew reports from inside Carlsbad Caverns Nat'l Park, New Mexico.)  Calcite formations called soda straws are precursors to these larger formations that grow from cave ceilings
The genus Collimonas 
consists of soil bacteria that have the potential to grow at the ...... Bacteria, fungi 
and biokarst in Lechuguilla Cave, Carlsbad Caverns National Park, New Mexico.