"The typus of C. cordata var. grabowskii was heavy damaged at the end of WW2, making it difficult to interpret." - JB
coll. Grabowski s.n. (1881)
Herbarium sheet of C. cordata var. grabowskii (as C. grandis) collected near Matang, Sarawak. Note the very long tube.
Coll. Haviland 2319