What is "schoenocephalium"

Schoenocephalium is a group of plants in the family Rapateaceae described as a genus in 1845.

The genus is endemic to South America.

1. Schoenocephalium cucullatum Maguire - S Venezuela, SE Colombia, NW Brazil
2. Schoenocephalium martianum Seub. - Colombia ( Amazonas)
3. Schoenocephalium schultesii Maguire - Colombia ( Vaupés)
4. Schoenocephalium teretifolium Maguire - SE Colombia to Venezuela ( Amazonas)