Matriarchies may also be confused with matrilineal, matrilocal, and matrifocal societies. The Mescalero also practiced matrilocal residence patterns. Both groups are matrilineal and conform to matrilocal residence practice. Traditionally matrilocal, their social organisation is communal. Lahu trace descent bilaterally, and typically practice matrilocal residence. Women initiate marriage negotiations and residence is matrilocal. The bands and family groups making up the Guaycuruans were matrilocal and exogamous. Matrilocal residence is found most often in horticultural societies. J.F. del Giorgio insists on a matrifocal, matrilocal, matrilineal Paleolithic society. The Jicarilla are traditionally matrilocal and are organized into matrilineal clans. Matrilocal residence may be regarded as the opposite of patrilocal residence. Other societies are matrilinear or matrilocal, primarily among indigenous tribal groups. The Lenape have a matrilineal clan system and historically were matrilocal. When young couples married, they lived with the woman's family in a matrilocal pattern. Monogamy is the predominant form of marriage, and residence is usually matrilocal.