Verbatim text: Shuey, A. G. and R. P. Wunderlin. 1977. The needle palm: Rhapidophyllum hystrix. Principes 21: 47--59.
Author: Shuey, A.G., Wunderlin, R.P.
Year: 1977
Title: The needle palm: Rhapidophyllum hystrix
Journal: Principes
Volume: 21
Pages: 47–59