Approximately 125 green-yellow flowers and 17 buds well-arranged on 40-cm by 18-cm diameter compact plant grown in decaying bark in clay pot; pseudobulbs ovate, slightly flattened 3-cm by 1.5-cm, lanceolate leaves dark green 10-cm by 1-cm, one flower per inflorescence to 9-cm; petals linear; acuminate lip darker green-yellow, column green; substance firm; texture dorsal surface lip waxy, shiny, petals matte.
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below from erics maxillaria book
Rhetinantha acuminata, award 20161881, has been confirmed to be  Rhetinantha acuminata by SITF (Oct 2016).Â