Pursh provides a full Latin description of this new species. Lewis collected the plant "On the waters of Cokahlaishkit river, near the Rocky-mountains" according to Pursh, or along the Blackfoot River west of Lewis and Clark Pass in Lewis and Clark Co., Montana, on 7 Jul 1806 (Moulton, 1993: 95-96). (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:07/07/1806

Meehan (1898: 46) lists this as Zizania palustris {errore, Z. aquatica -Spamer & McCourt, here} L. (Mant. Pl. 2: 295. 1771). The var. palustris occur commonly along the Missouri River near the Nebraska-South Dakota state line where Lewis gathered his specimen on 8 Sep 1804 (Moulton, 1987a: 469). While this is at the very edge of the northward distribution of var. interior as now defined (Terrell et al., 1997), Lewis 59 is clearly representative of the variety. (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:09/08/1804

Agrostis dispar "Banks of Mohanic" Collected by:Benjamin Smith Barton

Miniature bust depicting head and part of shoulders of George Washington. Hair in ponytail, wearing cravat. "F. Gasparro ©1982" on back.

Aristida spiciflora Collected by:Aloysius Enslen

Arrhenatherum elatius Collected by:Thomas Nuttall

Arundo gigantea Collected by:Benjamin Smith Barton Collection date:10/08/1807

Nearly waist-length portrait bust of a man with beard and moustache, in academic robes, without arms. Inscribed "1825 Henry Charles Lea 1909" on front, and "1910 May" and "Roman Bronze Works, N.Y." on back, lower right.

Echinochloa crus-gallii Collected by:Aloysius Enslen

Eleusine sp. (illegible) Collected by:Aloysius Enslen

Head and shoulders of figure facing forward, wearing jacket, vest, and tie. The base of the truncated torso is supported by a low, flat scroll with a lengthy inscription at the verso. Inscribed "C A Heber 19(27)" and "Francis X. Dercum M. D." Additional inscription at rear bottom: "one of the generalizations held out to us by the conception of the universe here outlined is that of a whole, all parts of which are expressive of manifestations of energy, manifestations cognate in correlative and intrinsically identical of necessity [.] such a conception must include living matter. Francis X. Dercum"

Erianthus saccharoides Collected by:Peter Custis

Festuca myuros Collected by:Thomas Nuttall

Festuca polystachya Collected by:Aloysius Enslen

Plaster portrait bust on low, circular, columnar base. The subject has long hair, slightly curled over his ears, and tied in the back with a ribbon at the nape of his neck. He wears a vest, coat, and a pleated cravat with a ruffled jabot. Unsigned and undated. Inscribed, "T.J." on verso under shoulder.

Panicum filiforme Collected by:Dr. Gray, of Southampton, VA

Panicum atropurpureum "'Sweet Reed,' 'Black Grass,' '2 Black ???' Collect. near the city, August 18, 1806. I am told that 'Black Grass' is the most common name." Collected by:Benjamin Smith Barton Collection date:08/18/1806

Life-sized, marble portrait bust on low, circular, columnar base. The subject's hair is curled about his ears and tied back with a ribbon. He wears a high-collared, ruffled shirt, a vest, and an open jacket. Incised on proper right shoulder, "Houdon Fecit 1785."

Paspalum laeve Collected by:Benjamin Smith Barton

Trichodium sp. Collected by:Aloysius Enslen