JOHNSTON. — A REVISION OF THE GENUS FLAVERIA. 289 



rate: leaves linear, connate to connate-vagiuate, the lower ones breaking 

 away, typically opposite, but this character becomes inconspicuous by the 

 presence of numerous leaves whorled in the axils of the opposite ones, 

 entire, from 2 cm. to 10 cm. long, and from .1 to .4 cm. wide: inflores- 

 cence irregular, consisting of small loose glomerules or larger compact 

 aggregations ; involucral bracts equal, enclosing 3 to 8 flowers, usually 

 one ligulate ; outside bracts small ; ligule of 9 oval, almost equalling the 

 long slender tube : achenes about equal, 9 somewhat stouter than $ . — 

 Lag. Gen. et Sp. Nov. 33, n. 40 (1816). F. marithna, HBK. Nov. 

 Gen. et Sp. iv. 285. F. tenuifoUa, Nutt. in Jouru. Acad. Phil. n. s. 

 vii. 81. Selloa nudata, Nutt. in Am. Journ. Sc. v. 300 (1822). Gyin- 

 nosperma nudata, DC. Prod. v. 312. — Florida: Biscayne Bay, 

 Palmer, 292, 1874 (hb. Gr., hb. U. S.) ; Miami, Garber, May, 1877 (hb. 

 Gr., hb. U. S.) ; New Found Harbor Key, Pollard, Collins, and Morris, 

 79, Mar. 1898 (hb. U. S.) ; No Name Key, /. H. Simpson, 185, May, 

 1891 (hb. U. S.) ; Key West, Blodgett (hb. Gr.). Cuba: Toscano sea- 

 shore, Wright, 2859, 1860-64 (hb. Engel., hb. U. S., hb. Gr.) ; Mariel, 

 Province of Pinar del Rio among coral rocks near sea, Wm. Palmer and 

 /. H. Riley, 713, May, 1900, and 811, June, 1900 (hb. U. S.). Bahamas: 

 Red Bays, Andros, John I. and Alice R. Northrop, 462, Apr. 1900 (hb. 

 Gr.). Mexico: Galeotti, 23 (hb. Gr.). Yucatan: G. F. Gaumer 

 1141 (hb. Gr.) ; Holbox Is., Bay of Honduras, Gaumer, 1886 (hb. Gr.) 

 Var. latifolia, nov. var. Stem herbaceous, erect, greenish or rubes- 

 cent, slender, striate, glabrate ; lower internodes not conspicuously 

 shorter than the upper ones : leaves opposite, linear to lanceolate, con- 

 spicuously narrowed above the expanded connate base ; whorls of leaves 

 inconspicuous ; leaves entire or denticulate, 2.5 cm. to 10.5 cm. long, 

 and .4 cm. to 3 cm. wide: heads gathered in rather small glomerules 

 which are arranged in an open quite regular corymb ; heads similar to 

 type of the species. Although this variety is very distinct in habit from 

 the type of the species, there are intermediate and dubious forms. — 

 Florida: shore of Lake Worth near Palm Beach, Curtiss, 5524, Aug. 

 1895 (hb. M. B. G., hb. U. S); Key West, Palmer, 292; Sneed's Is., 

 Tracy, 6356, Sept. 1899 (hb. Gr., hb. U. S., hb. M. B. G.) ; shore of 

 Indian River, Curtiss, 1504 (hb. Gr., hb. M. B. G.) ; Titusville, Brew- 

 ard Co., G. V. Nash, 2301, Jul.-Aug. 1895 (hb. M. B. G., hb. U. S., 

 hb. Gr.). Yucatan: Cozumel Is., Gaumer, Aug. 1885 (hb. Gr.). 



b.b. Stem branching copiously. 



9. F, RAMOSissniA, Klatt. Stem purplish, terete, striate, glabrate, 



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