Complex sentence: The subgenera "Pleurothallis" and "Specklinia" are becoming separate genera, and the subgenus "Acuminatae" might become the proposed genus "Anathallis".
Split into simpler sentences: The subgenera "Pleurothallis" and "Specklinia" are becoming a separate genus. The subgenus "Acuminatae" might become the proposed genus "Anathallis".