A new species of Ceratolacis (C. pedunculatum) is illustrated and described. The new species is known from four locations in central Minas Gerais, Brazil. Ceratolacis pendunculatum is distinguished from the only other species of the genus based on the presence of a prominent peduncle and the oblique orientation of the ovary of the pedicel.
Philbrick, Tom PhD; Novelo R., Alejandro; and Irgang, Bruno E., "A New Species of Ceratolacis (Podostemaceae) from Minas Gerais, Brazil" (2004). Faculty Papers. 4.