Lemyrea was reviewed by Stone & Davis (2004), who noted that some previous authors had suggested that this and several related genera might be better included in Fernelia. Stone & Davis surveyed these genera and concluded they are all better separated. The first several species of Lemyrea discovered were originally described in Coffea ser. Lemyrea A. Chev., which was later recognized as a distinct genus of a separate tribe, Octotropideae.
Lemyrea was characterized morphologically by Stone and Davis by its articulated petioles; several-flowered fasciculate inflorescences (i.e., lacking a single common peduncle for a group of flowers); bisexual, pedunculate ("pedicellate") flowers with 4 or 5 calyx lobes, corolla lobes, and stamens; sessile, sub-medifixed, very narrowly oblong ("linear") anthers; the style partially to completely divided; the ovary with two locules and 3-32 axile ovules in each locule, with the ovules arranged in two series; and seeds with the endosperm entire (i.e., not ruminate) and the testa with a fine pattern of striations that resemble finger-prints (they did not have information about the seeds of all the species). Additionally Lemyrea has triangular interpetiolar stipules that are often aristate, a rather distinctive brown or grayish brown drying color of the specimens, homostylous flowers, funnelform white corollas, and rather leathery berry-like fruits that apparently become yellow at maturity. The illustrations of species of Lemyrea show the anthers as included in the corolla tube (e.g., Stone & Davis 2004, fig. 1, p. 120; Chevalier 1938: t. 15, p. 840), but many of the specimens identified by Stone & Davis have the anthers partially exserted.
Lemyrea is similar in general aspect and many details in particular to Galiniera and Gallienia, and also to the plants included by Chevalier in Chapelieria lemyroides.