Type : "2.
C. tomentosa nob. racemis terminalibus laxis subnutantibus, foliis oppositis oblongo-ovalibus longe acuminatis subtus ferrugineo-tomentosis.
C. excelsa, foliis lanceolato-oblongis attenuatis utrinque acutis subtus aureo-tomentosis. Vahl. Enum. 1. p.
4. (excluso synonymo Aubletii).
[...] (Fide speciminis herbarii Vahlii in Gujana lecti quod coram habemus.)" [protologue].
Guyane française, L.C.M. Richard s.n. (HT: C; IT: ).