1) Direct 2) Lineal 3) Patrilinear 1) Lineal 2) Patrilinear 
Relating to, based on, or tracing ancestral descent through the paternal line.
Related to descent through the male line; inheritance of the Y chromosome is exclusively patrilineal. ... Origin: L. Pater, father, + linea, line ... (05 Mar 2000) ... 
(pat″rĭ-lin´e-әl) descended through the male line.
Type: Term Pronunciation: pat′ri-lin′ē-ăl Definitions: 1. Related to descent through the male line; inheritance of the Y chromosome is exclusively patrilineal.
[adj] - based on or tracing descent through the male line
patrilineal, patrilineage 1. Designating or of descent, kinship, or derivation through the father instead of the mother. 2. Related to descent through the male line; inheritance of the Y chromosome is exclusively patrilineal.
patrilinear adjective based on or tracing descent through the male line; `a patrilineal society`
based on or tracing descent through the male line