Type : "BRITISH GUIANA. Upper Demerara River, about 110 m. S. of Georgetown, alt. 100 ft., Oct. 15th 1935, Davis in Forest Dept. no. 2457: stout bushy undergrowth shrub, about 7 ft. high, growing in Mora forest near a creek on clay soil; inflorescence and calyx dark red-brown; buds deep red; corolla tube deep red, lobes milk-white within." [protologue].
Guyana, Demerara River, env. 110 miles au Sud de Georgetown, in
Mora forest near a creek on clay soil, env. 300 m, 15/10/1935, fleurs. Stout bushy undergrowth shrub, about 7 ft. high. Inflorescence and calyx dark red-brown; buds deep red; corolla tube deep red, lobes milk-white within. T.A.W. Davis 462 [F.D.-2457] (HT:
K000424521,
K000424522).