Encephalosphaera vitellina Lindau, Bull. Herb, Boiss. II. 4: 323, 1904. Type collected in damp, rocky woods at Agua Clara, Popayán, Cauca, Colombia, 1,000 to 1,200 meters altitude, by Lehmann (No. 9048) and deposited in the Berlin Herbarium. Isotype in New York Botanical Garden. Photograph of type in the U. S. National Herbarium, No. 8722. A sparingly branched shrub up to 1.3 meters high; branches essen- tially glabrous, up to 1 cm. in diameter; leaf blades ovate, 14 cm. long, about 8 cm. wide, long and subobliquely acuminate at apex, abruptly narrowed at the base and decurrent on the petiole, more or less carnose, glabrous, the lateral nerves numerous, parallel, arcuate; petioles 2 to 4 cm. long, glabrous; spikes terminal, subsessile, a little shorter than the leaves, the rachis pubescent; bracts imbricate, ovate, 20 mm. long, about 11 mm. wide, acuminate, minutely pubescent, the margins bearing 7 to 8 minute teeth; bractlets linear, 8 mm. long, 0.75 mm. wide, minutely puberulous; calyx lobes subequal, 11 mm. long and 2 mm. wide, minutely puberulous especially toward the tip, the posterior segment bidentate at tip; corolla yellowish orange, puberulous, the tube 35 mm. long, 5 mm. broad at base, 7 mm. broad at mouth, the upper lip erect, 16 mm. long, 9 mm. wide at middle, acute at apex, the lower lip 3-lobed, the lobes rounded, the middle lobe 20 mm. long and 10 mm. wide, the lateral lobes 16 mm. long and 7 mm. wide; fila- ments inserted above the base of the corolla tube, 40 mm. long, curved and pilose at base; anthers 5 mm. long, cohering at tip by villous hairs; pollen grains globose, 55 to 58 μ in diameter; staminode membranous, lobulate, minute; styles 45 mm. long, sparingly pilose, stigmas 2- parted; capsule not seen. The name vitellina, yellowish orange, alludes to the color of the corolla.