premise: Lysichiton is a genus in the family Araceae. These plants are known commonly as skunk cabbage or less often as swamp lantern. The spelling Lysichitum is also found. The genus has two species, one found in north-east Asia (Japan and Russian Far East), the other in north-west America (Aleutians to Santa Cruz County in California).
hypothesis: The genus has two species, one found in north-west Asia , the other in north-west America (Aleutians to Santa Cruz County in California).
  
reason: North-east asian, not north-west. Similar words