Monographs Details: Marlierea ferruginea (Poir.) McVaugh
Authority: Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.

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 inflorescence.