The permanent staff of Stemma Journal is:
Mark Randal, Editor
markroyrandal@gmail.com
and
Rachel Colette Conroy, Chief Researcher
r.colettek@gmail.com
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The International Cultivar Registration Authority for the genus Hoya is a separate organization from Stemma Journal, but we work together to publish new cultivars and clarify the status of older cultivars. find the Hoya ICRA at: