Prov. Setschwan austro-occid. : in montis Tschahungnyotscha supra vicum Ngaitschekou trans flumen Yalung ad septentr. oppidi Yenyuen ca. 28° 15' siti regione frig. temp.
Shaba province (Katanga) ; Lubumbashi District, on earthy bank amid the disused workings of Mine de l'Etoile copper mine, 11 km. from Lubumbashi near Lukuni