JOHNSTON. — A REVISION OP THE GENUS FLAVERIA. 285 



Saltillo, Palmer, 284, Sept. 1898 (hb. Gr., hb. U. S.) ; Jimulco, Pringle, 

 83, May, 1885 (hb. Gr., hb. J. D. S., hb. U. S.). Nueva Leon : Mont- 

 erey, Enero, 1422 & 162, 1828 (hb. Gr.). Durango : rich moist bot- 

 tom-lands, Palmer, 481, Aug. 1896 (hb. Gr., hb. M. B. G., hb. U. S.). 

 San Luis Potosi : en route from San Fernando to Santander, Ber- 

 landier, 839, Oct. 1839 (hb. Gr.) ; Parry & Palmer, 499, 1878 (hb. Gr., 

 hb. M. B. G., hb. U. S.). Chihuahua: Potts ace. Hemsl. Biol. Cent- 

 Am. Bot. ii. 216. Guanajuato: Jaral, Walther Schumann, 64,1885 

 (hb. Gr., hb. J. D. S.) ; Alfredo Duges, Nov. 1897 (hb. Gr.) ; Irapuato, 

 Pringle, 2688, May, 1889 (hb. M. B. G.). Oaxaca : L. C. Smith, 307, 

 Nov. 1894 (hb. Gr.) ; Conzatti & Gonzalez, 1016, Aug. 1900 (hb. Gr.), 

 E. W. Nelson, 130, Sept. 1894, alt. 1,600 to 1,700 m. (hb. Gr.). Hi- 

 dalgo: Cadena in rich valley, Gregg, 22 (hb. Gr.) & 594 (hb. Engel.). 

 Teotitlan : Tecomavaca, Pringle, 5724, Sept. 1894 (hb. Gr., hb. U. S.) ; 

 C. L. Smith, 264, Sept. 1894, alt. 650 m. (hb. M. B. G., hb. U. S.). 

 Tehuacan: Galeotti, 2639 ace. Hemsl. 1. c, alt. 2,000 m. Morelos : 

 Jojutla, Pringle, 9508, June, 1901, alt. 1,000 m. (hb. Gr., hb. U. S.). 

 Yucatan: ditches near Progreso, Millspaugh, 1653, and along railroad 

 south of lagoon, Progreso, Millspaugh, 1699 & 1731, Pub. Field Columb. 

 Mus. Bot. ii. 109 ; downs of Progreso, Schott, 973, Dec. 1865, ace. 

 Millspaugh, Pub. Field Columb. Mus. Bot. i. 395. Cuba: Liebmanr, 

 452 (hb. Gr.) ; salt marshes near Guanimas, Wright, 2860 (hb. Gr., 

 hb. Engel., hb. U. S.) ; waste places, field and roadsides, Cieneguita, 

 R. Combs, 473, Aug. 1895 (hb. Gr., hb. M. B. G.) ; Havana, Palmer 

 & Riley, 1156, July, 1900 (hb. U. S.). Venezuela: Tovar, A. 

 Fendler, 692, 1854-5, alt. 1,000 m. (hb. Gr.) ; Caracas, A. H. Moore, 

 25, Mar. 1899 (hb. Gr.). Peru: Huanuco, ace. Spr. in Schrad. Journ. 

 Bot. iv. 186 (1800). British Guiana : Schomburgk, 247, ace. Baker 

 in Mart. Fl. Bras. vi. pt. 3, 270. Brazil: Riedel, 813 (hb. Gr.) ; 

 Bahia, Riedel, 938, and Luschnath, ace. Baker, 1. c. Cult, specimen : 

 Hort. Cantabr. 1849 (hb. Gr.), Hort. Genev. (hb. Gr.), Hort. Bot. 

 Berol. (hb. Gr.). 



§ 2. Receptacle not setose. 

 * Heads 3- to 8- flowered, 

 t- Annual. 

 ++ Bracts plain. 

 == Ligule slender, nearly upright. 



3. F. cniLENSis, Gmel. Herbaceous, erect, .6 to .9 m. high, with a 

 copious dichotomous branching: stem green or rubescent, branches gla- 



