Eugenia ferruginea Poir. in Lam. Encye. Suppl. 3: 124. 1813.
Krugia ferruginea (Poir.) Urb. Bot. Jahrb. 19: 604. 1895.
For description see Urban, I.e., or Amshoff, Fl. Surin. 3: 68 (1951). St. Vincent and Trinidad to the Guianas, the type perhaps from French Guiana or the Antilles.
There seems to be little justification for the maintenance of the monotypic
genus Krugia. The only character of the genus resides in the corolla, in which
the petals are adherent to the calyptra and break free from the flower with it.
Petals are weakly adherent to the calyptriform segment of the calyx in most if
not all the species of Marlierca that have a calyx opening in this way, and one
or more petals may fall with the calyptra and remain attached to it. The degree
of coherence among the petals is unusually great in M. ferruginea, but this is
hardly sufficient to serve as a generic distinction. In other respects, including
the morphology of the inflorescence, this is a typical Marlierea except that the
hypanthium does not split deeply as the fruit develops, but remains nearly entire
and tubular. The calyx in M. ferruginea, with its 2 interior and 2 or 3 exterior
lobes, is suggestive of that in the newly described M. summa. This species is
rather readily recognized, even in fruit, by the combination of abundant rufous
pubescence and persistent broadly deltoid-ovate bracts (3-4 mm long) in the