Snelders & Maas (Benth.) 1981 - Maas PJM (1981) NOTES ON NEW WORLD SAPROPHYTES II. Acta Botanica Neerlandica 30(1-2): 139-149. doi: 10.1111/j.1438-8677.1981.tb00393.x.
There is no corrections for Dictyostega orobanchoides subsp. purdieana yet.