18 Bulletin 1, Biological Society of Washington, 1918. 



States, with an engraved plan of the District, and view of the 

 Capitol. Paris, 1816, pp. 191-209. 



Lists 142 species including introduced and cultivated forms. 



Washington Botanical Society. 



"Florula Columbiensis: or a list of plants found in the District 

 of Columbia; arranged according to the Linnaean system, under 

 their respective classes and orders, etc., and exhibiting their gen- 

 erally received common names, and time of flowering, during the 

 years 1817 and 1818. Washington: printed for the Washington 

 Botanical Society by Jacob Gideon, Jun., 1819." 



The work is a 14-page pamphlet giving a bare list of the technical 

 and popular names of 296 species of flowering plants with the date 

 of their observation in 1817 and 1818. It apparently was intended 

 as a working list for the members of the Society.-' 



Brereton, J. A. 



Botany of the District of Columbia, pp. 123-138. Heading Florula 

 Columbiana on p. 124. In Elliot, Wm., the Washington Guide, con- 

 taining * * * Botany of the District of Columbia, Nov., 1822. 



460 species listed. Exactly tlie same in Second Edition, 1826, and 

 Second Edition with corrections and additions, 1830. In the 

 "improved edition," 1837, the botany occupies pp. 295-310, and the 

 preface states that it has been "revised and corrected by Mr. Rich 

 from the records of the Botanical Society of this place." However, 

 the number of species remains the same, and the changes, if any, 

 are insignificant. 



Florae Columbianae Prodromus exhibens Enumerationem Plan- 

 tarum Quae Hactenus Exploratae Sunt, or a prodromus of the Flora 

 Columbiana exhibiting a list of all the plants which have as yet 

 been collected. (1830) cover date 1831. 86 pp. 



"During the spring of 1825, after the dissolution of the late Wash- 

 ington Botanical Society, a few gentlemen of the city devoted to 

 Botany formed an association to explore and investigate de novo 

 the indigenous plants of the District of Columbia. The association, 

 under the name of 'The Botanic Club,' consisted of Wm. Mechlin, 

 Wm. Rich, Alex. McWilliams, and the compiler, and in the following 

 year of James W. Robbins, M. D." The results of their labors are 

 embodied in the "Prodromus," which lists 912 species of plants. 



Gale, L. D. 



On the Oaks of the District of Columbia. 



Proc. Nat. Institute, N. S. Vol. I, No. 2 (1855-6), pp. 67-68, 2 figs. 



Read Nov. 21, 1853. Presented for publication May 21, 1855. 



Mentions 12 indigenous and 2 introduced species and gives notes 

 on Bartram's oak (Quercus heterophylla) and on dates of flowering. 



21 Quoted from Coville, F. V. Records of the Columbia Historical So- 

 «iety, Vol. 5, 1902, p. 189. 



