Given the description, it is not likely that this is the element Pursh had before him when he proposed Anemone tenella (1813: 386), an illegitimate name for A. caroliniana Walter (Fl. Carol.: 157. 1788; see No. 13, below). He makes no reference to A. pensylvanica L. (Mant. 2: 247. 1771), as the plant was then known. The Lewis specimen was collected along the Missouri River at or near Tonwontonga, a large Indian village in Dakota Co., Nebraska, on 17 Aug 1804 (Moulton, 1986: 486-488). The sheet lacks a Lewis label and is not listed among the plants collected by him in 1804 (Moulton, 1987a: 450-472). (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:08/17/1804