PLANTS OF ARKANSAS. 159 



prominent early American naturalists. He spent several years 

 in the territory, as it then was, most of his time being occupied 

 in botanical observations. The results of these observations 

 were not published as a report, but at odd times and in differ- 

 ent places. They are all long out of print. 



"Journal of Travels Into Arkansas Territory, 1819 : By 

 Thomas Nuttall, p. 236, Phila., 1821." This book has not been 

 obtained by the writer, and no sketch of its contents can be 

 given. 



"A Description of Some New Species of Plants Recently 

 Introduced Into the Gardens of Philadelphia, from the Arkan- 

 sas Territory : By Thomas Nuttall. Jour. Phil. Acad. Sci., 

 Vol. II, pp. 1 14-123 ; Phila., 1821." Twelve species of Arkan- 

 sas plants are described. 



" Description of Two New Genera of the Natural Order 

 Cruciferse: By Thomas Nuttall. Ibid., Vol. V, pp. 132-135." 

 The plants are Selenia aurea and Streptanthus maculatus ; the 

 latter from Red River, the former from the Arkansas. 



" Collections Toward a Flora of the Territory of Arkansas : 

 By Thomas Nuttall. Transactions of the American Philosophi- 

 cal Society, Vol. II (New Series), pp. 139-203. Philadelphia, 

 1837." There are included two fungi, and several Pteridophyta, 

 the remainder being flowering plants, some newly described. 

 The paper appears to be a list of all the plants, so far as it 

 goes, found in Arkansas up to the time of publication. But 

 the Polypetalse and several orders of the Gamopetalse (one of 

 the Composite) are omitted. 



The work of Lesquereux. — In the year 1859, Prof. Leo 

 Lesquereux was engaged by the geological survey then being 

 carried on by the state under the direction of David Dale 

 Owen, to make an examination of the botany, both fossil and 

 recent. Only the last three months of the year were spent in 

 the field. Lesquereux's report is published in the u Report of 

 the Second Geological Survey of Arkansas, pp. 295-399. Phil- 

 adelphia, i860." It includes a sketch of the botanical features 



