Palo (the Regla de Palo Monte, also Mayombe) is an Afro-Cuban religion that goes back to the cults of the kingdom of Kongo and other Bantu kingdoms. Its centre is the nganga, the sacred cauldron.
According to Wikipedia, the main branches (ramas) are Mayombe, Briyumba, Monte and Kimbisa. EcuRed calls Mayombe the first form; with the initiation of Cuban-born believers, Kimbisa and Brillumba arose later, and in the 19th century the Kimbisa del Santo Cristo del Buen Viaje of Andrés Facundo de los Dolores Petit.
According to EcuRed, the nganga, also prenda or caldero, is a clay pot or iron cauldron containing earth from different places, bones, sticks, herbs and a stone (matari). It is seen as a pact between life and death: the soul of a dead person works for the initiate, who feeds it with liquor, tobacco smoke and candles.
Wikipedia lists among the most prominent mpungu Lucero, Sarabanda, Siete Rayos, Ma' Kalunga, Mama Chola, Centella Ndoki and Tiembla Tierra. Known correspondences:
The main drums in Palo are tumbadoras, unlike the batá of santería; when these are not available, plywood boxes are sometimes used. The tempo differs per branch: Mayombe and Briyumba are faster than Monte or Kimbisa. Palo dances have a striking element of pantomime, and dancers may work themselves into an "absolute frenzy". In the garabato style, dancers strike sticks, usually of guava wood, against each other. Palo rhythms, with their steps, are also heard at the cajón al muerto.