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Cyathophyllum nevadense
Taxonomy
Cyathophyllum nevadense was named by Meek (1877) [Named as "Cyathophyllum (Campophyllum?) nevadense", but "Without seeing better specirnens, it is difficult to determine whether it is a Cyathophyllum, a Campophyllum, or a Zaphrentis"].
Sister species lacking formal opinion data