Larnax dilloniana S. Leiva, Quipuscoa & N. W. Sawyer (1998: 85)

Lectotype (designated here):— PERU. San Martín: Rioja, arriba del poblado Miraflores (ca. Nueva Cajamarca), 1260–1420 m, 3 November 1996, S. Leiva, M. Dillon, I. Sánchez, V. Quipuscoa & P. Lezama 1919 (CONN 00066074 !, isolectotypes: CONN 00066075!, CORD 00004043!, F 2183234!, HUT 031930!, MO 05097641!)

The selected lectotype has some buds, four flowers, one immature fruit and one mature fruit (Fig. 13 A), while no other specimen possesses fruits. The exserted stamens, mucronate anthers (Fig. 13 B), and wrinkled fruiting calyx (Fig. 13 C) are the diagnostic characters observable in this specimen; these features allow L. dilloniana to be distinguished from L. subtriflora (Ruiz López & Pavón) Miers (1849: 38) that grows in nearby areas.