Dianthera pleurolarynz Blake, Contr. Gray Herb. n. ser. 53: 51. 1918. Type collected at Puerto Cabello, State of Carabobo, Venezuela, June 14, 1917, by H. N. Curran & M. Haman (No. 1145). Justicia pleurolarynz (Blake) Leonard, Fieldiana, Bot. 28: 561. 1953. Branching herbs; stems subquadrangular, bifariously hirtellous, the hairs retrorsely curved, up to 0.2 mm. long; leaf blades lanceolate or ovate-lanceolate, usually up to 4 cm. long (occasionally as much as 7 cm.) and 1.5 cm. wide, acute to acuminate (the tip itself obtuse to subacute), narrowed to rounded at base, moderately firm, entire, glabrous or sparingly hirtellous, the hairs confined chiefly to costa and lateral veins (4 or 5 pairs), curved, up to 0.32 mm. long, the cysto- liths usually obscure; petioles 3 to 4 mm. long, hirtellous; spikes solitary or in pairs, terminating the branches, rigid, straight or slightly curved, up to 7 cm. long and 1 cm. wide, moderately dense, the ped- uncles usually 0.5 to 2 cm. long, and rachis bifariously hirtellous; bracts and bractlets subulate-acuminate, 1.5 to 3.5 mm. long, 0.5 mm. wide at base, sparingly hirtellous; calyx 4-parted, the segments. linear-subulate, 6 mm. long, 1.25 mm. wide near base, sparingly to rather densely hirtellous, the costa and a pair of lateral veins rather prominent; corolla 9 mm. long, hirtellous, the tube 3.5 mm. long, the hairs more or less spreading, up to 0.2 mm. long, the upper lip narrowly ovate, entire, rounded, 2-lamellate within and pilose, the lower lip deltoid, cuneate at base, the tip 3-lobed, the lobes short, rounded, the palate plicate-lamellate, papillose; stamens about 3 mm. long, the anther lobes rounded, obliquely attached to a relatively broad flattened connective 2 mm. broad and about 0.5 mm. thick; capsule clavate, 10 mm. long, glabrous, 4-seeded; seeds ca. 1.7 mm. long, densely papillose. The specific epithet is from the Greek words πλευρά, rib, and λάρυγξ, throat, alluding to the plicate-lamellate lower lip of the corolla. CUNDINAMARCA: Jerusalén, Pérez-Arbeláez 587 (US).