Inside the petals is a pale yellow staminal tube (a tube made up of fused stamens) up to  long and  in diameter. Set at the top of the staminal tube are 100-150 filaments  long, the outer unfused. The inner 10-20 filaments are erect and united into a central bundle that extends for about  beyond the top of the tube.
Within the petals is a pale yellow staminal tube (a tube formed by fused stamens) measuring up to  long and in diameter. At the top of the staminal tube are 100-150 filaments  long, with the outer ones separate and the inner 10-20 filaments standing upright and united into a central bundle that extends beyond the top of the tube.