An axial turbine for an exhaust-gas-driven turbocharger, the turbine having no inlet stator, and comprising: an axial turbine wheel comprising a hub and a plurality of blades extending generally radially outward from the hub; and a turbine housing assembly in which the turbine wheel is mounted, the turbine housing assembly comprising a turbine housing that defines a meridionally divided scroll extending circumferentially and surrounding the turbine wheel, the meridionally divided scroll defining a first scroll extending substantially fully about the turbine wheel and a separate second scroll extending substantially fully about the turbine wheel; the turbine housing assembly defining a separate inlet for each of the first and second scrolls through which separate exhaust gas streams are received; the turbine housing assembly defining separate first and second outlets for each of the first and second scrolls, respectively, through which the respective exhaust gas streams are fed into an inlet side of the turbine wheel, wherein: the first and second outlets are configured so that the respective exhaust gas streams are fed generally in an axial direction into the turbine wheel, and so that the first outlet is generally radially outward of the second outlet such that the exhaust gas from the first outlet is fed to a radially outer portion of the inlet side of the turbine wheel and the exhaust gas from the second outlet is fed to a radially inner portion of the inlet side of the turbine wheel; the turbine housing assembly defines a circumferentially and radially extending dividing wall that separates the first scroll from the second scroll, the first outlet being defined in part by a radially inner portion of the dividing wall and the second outlet being defined in part by the radially inner portion of the dividing wall; and the radially inner portion of the dividing wall is part of a dividing member that is a separately formed part from the turbine housing. an axial turbine wheel comprising a hub and a plurality of blades extending generally radially outward from the hub; and a turbine housing assembly in which the turbine wheel is mounted, the turbine housing assembly comprising a turbine housing that defines a meridionally divided scroll extending circumferentially and surrounding the turbine wheel, the meridionally divided scroll defining a first scroll extending substantially fully about the turbine wheel and a separate second scroll extending substantially fully about the turbine wheel; the turbine housing assembly defining a separate inlet for each of the first and second scrolls through which separate exhaust gas streams are received; the turbine housing assembly defining separate first and second outlets for each of the first and second scrolls, respectively, through which the respective exhaust gas streams are fed into an inlet side of the turbine wheel, wherein: the first and second outlets are configured so that the respective exhaust gas streams are fed generally in an axial direction into the turbine wheel, and so that the first outlet is generally radially outward of the second outlet such that the exhaust gas from the first outlet is fed to a radially outer portion of the inlet side of the turbine wheel and the exhaust gas from the second outlet is fed to a radially inner portion of the inlet side of the turbine wheel; the turbine housing assembly defines a circumferentially and radially extending dividing wall that separates the first scroll from the second scroll, the first outlet being defined in part by a radially inner portion of the dividing wall and the second outlet being defined in part by the radially inner portion of the dividing wall; and the radially inner portion of the dividing wall is part of a dividing member that is a separately formed part from the turbine housing. the first and second outlets are configured so that the respective exhaust gas streams are fed generally in an axial direction into the turbine wheel, and so that the first outlet is generally radially outward of the second outlet such that the exhaust gas from the first outlet is fed to a radially outer portion of the inlet side of the turbine wheel and the exhaust gas from the second outlet is fed to a radially inner portion of the inlet side of the turbine wheel; the turbine housing assembly defines a circumferentially and radially extending dividing wall that separates the first scroll from the second scroll, the first outlet being defined in part by a radially inner portion of the dividing wall and the second outlet being defined in part by the radially inner portion of the dividing wall; and the radially inner portion of the dividing wall is part of a dividing member that is a separately formed part from the turbine housing.