Same sheet as PH-LC 202a. Pursh based his description of Sedum stenopetalum upon a mixed collection of this species and S. lanceolatum (see No. 176 above), citing simultaneously both locations as "On rocks on the banks of Clarck's river and Kooskoosky." Clausen's lectotypification was made specifically to maintain the long-established applications of both names. The lectotype was collected in the vicinity of Travelers' Rest in Missoula Co., Montana. The actual date was probably 2 Jul instead of the date (1 Jul) on the label as Lewis "found serveral other uncommon plants specemines of which I preserved" (Moulton, 1993: 79) on that day. (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:07/02/1806