Table S5.

Solanum starch grain size range (length equaling dimension along longest axis)

Taxonomic identification/starch source	Type of tuber material	Status	No. starches analyzed	Mean length (μm)	SD	Range (µm)
Modern cultivated
Paula variety (Solanum sp.)/Puno market*	Freeze-dried tunta	Cultivated	50	48	23	12–100
Paula variety (Solanum sp.)/Puno market*	Fresh tuber	Cultivated	50	41	20	12–75
Paula variety (Solanum sp.)/Puno market*	Freeze-dried chuño	Cultivated	50	25	15	4–66
Imilla negra variety/Puno market*	Freeze-dried chuño	Cultivated	50	38	24	9–96
S. tuberosum ssp. andigenum/GRIN/USDA PI No. 258865)	Fresh	Cultivated/ domesticated	50	25	12	3–46
Modern wild†
Solanum megistacrolobum/GRIN/USDA (PI No. 435072)	Fresh	Wild (relative)	50	27	11	9–45
Solanum infundibuliforme/GRIN/ USDA (PI No. 472858)	Fresh	Wild (relative)	50	30	10	10–45
Archaeological
Late Archaic starches	Unknown	Unknown	38	29	12	11–58
Terminal Archaic	Unknown	Unknown	1	36 x 38 µm	NA	NA
Early Formative	Unknown	Unknown	12	22	17	13–43

^*C.R. purchased tubers at main market in Puno, Peru.

^†Size data not available for S. candolleanum.