Cutright was probably unaware of the paratype, Bradbury s.n., "Louisiana," 1811 (PH); the sheet is annotated "Polygala Seneca g . tenuifolia" by Pursh. Pursh certainly obtained the majority of the features he included within his description from the Bradbury specimen as this name was published in a supplement to his Flora dominated by Bradbury specimens. The Bradbury specimen would have made a more logical lectotype as this sheet has more ample material with diagnostic features. If the lectotype was collected by Lewis, he probably got it near his camp of 10 Aug 1806 on the south shore of the Missouri River in McKenzie Co., North Dakota, opposite Williston while his party was making a series of repairs to their canoes (Moulton, 1993: 153-154). If the specimen was gathered by Clark, who was busy working on his journal and apparently collecting plants, the lectotype was probably found further down stream along the Missouri River in McKenzie Co. at a site now under Garrison Reservoir (Moulton, 1993: 287-288). At this time, unknown to Lewis, his co-captain was just ahead of him on the Missouri River. (The Lewis & Clark Herbarium Digital Imagery Study Set, ANSP, 2002) On deposit at the Academy of Natural Sciences, Philadelphia Collected by:Meriwether Lewis & William Clark Collection date:08/10/1806