1	Calyx appendages less than 2 mm long, or reduced to small protuberances, the calyx sometimes tearing, appearing lobed or two-lipped; berry ovoid, orange	L. pringlei
–	Calyx appendages usually greater than 2 mm long, the calyx margin truncate, never appearing lobed or two-lipped; berry turbinate, globose, or depressed globose, orange to red	2
2	Corolla purple; berry turbinate, the tip pointed, orange; seed surface with widely spaced serpentine cell pattern, noticeably pitted; state of Oaxaca	L. textitlaniana
–	Corolla white to lilac, sometimes with purple or green markings; berry globose to depressed globose, the tip round, orange to red; seed surface finely marked with shallow serpentine cell pattern, not noticeably pitted; widely distributed	3
3	Leaf pairs of similar shape; inflorescence of 1–5 flowers; calyx appendages in flower 2–10 mm long, to 11 mm long in fruit; stamens unequal with one filament noticeably longer than the other four, the anthers free of one another; from state of Sinaloa to Oaxaca, 670–2200 m in elevation	L. surotatensis
–	Leaf pairs usually very different in shape, the smaller leaf blade orbicular to ovate, the larger leaf blade narrowly ovate to lanceolate; inflorescence of a single flower; calyx appendages in flower 7–15 mm long, to 20 mm long in fruit; stamens equal or nearly so, the filaments of approximately the same length, the anthers connate to one another at their edges; Mexico (states of Chiapas, Oaxaca, Tabasco, and Veracruz) to Belize and Guatemala, 200–1000 m in elevation	L. gorgonea