id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ebl-990	Weiland, Andrew W.; Gremillion, Kristen J.	Patterns of Variation in the Seed Morphology of Iva annua var. macrocarpa, an Extinct North American Domesticate	2018	15	.pdf	application/pdf	6743	430	53	Domesticated marshelder achenes at Napoleon Hollow and Riverton (3370 ± 40 cal BP) sites in Illinois predate its first appearance on the Appalachian Plateau of eastern Kentucky, which comes from the Hooton Hollow rock shelter and has been directly dated to 3315 cal BP (Gremillion 1996). When interpreted literally, it would take an average of 667 years for marshelder achenes to grow one millimeter longer, while it would take an average of 960 years for achenes to grow one millimeter wider.	cache/ebl-990.pdf	txt/ebl-990.txt