Date de publication : Linnaea, 11(2): [
177-]
186[-
204]. 1837 [03/1837, fide V.E. Rudd, Phytologia, 62(4):
278. 1987; voir aussi
IK & R.C. Foster, J. Arnold Arbor. 43: (
400-)
402(-
409). 1962].
Type : "2.
M. nervosum m[ihi]." [protologue].
Guyane française, 1817-1822, A. Poiteau s.n.(HT: B [ex hb. Kunth; détruit; voir V.E. Rudd, Phytologia, 24(2):
121. 26/09/1972]).
D'après V.E. Rudd (Phytologia, 24(2):
121. 26/09/1972): "Although the holotype of this variety is no longer extant, the full description given by Vogel clearly shows that this name may be applied to the smaller-flowered individuals of this species."