Verbatim text: Sealy, J. R. 1937. Zephyranthes, Pyrolirion, Habranthus and Hippeastrum. J. Roy. Hort. Soc. 62: 195–209.
Author: Sealy, J.R.
Year: 1937
Title: Zephyranthes, Pyrolirion, Habranthus and Hippeastrum
Journal: J. Roy. Hort. Soc
Volume: 62
Pages: 195–209