Three New Species of Eugenia (Myrtaceae) from Ecuador

摘要

Three new species of Eugenia (Myrtaceae) from Ecuador are described and illustrated: Eugenia ampia, E. prolongata, and E. sericifolia. Eugenia is the largest genus of neotropical Myrtaceae and pantropical in distribution, comprising more than 700 species (Barrie 2006). It is characterized by the following combination of characters: inflorescences racemose, the axis elongate to greatly reduced and then appearing fasciculate or glomerate, or flowers solitary; flowers 4-merous, hypanthium usually not prolonged above the ovary; ovary 2-locular with (2-) several-many ovules per locule; and embryo eugenioid, i.e., the cotyledons fused into a solid mass, fleshy and thick, the hypocotyl indistinguishable.