284 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Nichol Bay, N. W. coast, F. Gregory's Expedition ; Victoria River and 

 Hooker's Creek, F. Mueller (hb. Gr., hb. U. S.) ; islands of the Gulf of 

 Carpentaria, R. Brown ; in the interior, M'DouaU Stuart's Expedition ; 

 Albert River, Henne ; Balonne River, Queensland, Mitchell (hb. Gr.) : 

 these ace. Benth. Fl. Aust. iii. 546 (1866). 



** Leaves lanceolate to elliptical; American. 

 2. F. repanda, Lag. Herbaceous, stem 30 to 120 cm. high, green or 

 reddish, dichotomous, striate, glabrate : leaves opposite, lanceolate, promi- 

 nently 3-nerved, apex rounded or acute, 2 to 9 cm. long, .6 to 2.5 cm. 

 wide, the base of the lower leaves tapering into a sort of petiole, the two 

 opposite ones being connate at the stalk ; the upper leaves are decidedly 

 connate; leaves in three pairs about inflorescence; lanceolate leaves ser- 

 rate, elliptical leaves repand-dentate : heads usually 1 -flowered, gathered 

 in dense axillary or terminal clusters : 9 bracts 1 to 2, usually 2, both 

 concave, acute or rounded at apex, even emarginate, one larger than the 

 other : corolla subligulate, emarginate, entire or tridentate, a little over 

 .1 cm. long, lamina the length of the tube, oblique, entire corolla a little 

 over \ length of achene, lower part of tube villous : achene scarcely 

 .1 cm. long: £ bracts 1 to 2 as in 9 \ corolla tube narrow becoming full 

 at throat, lobes acute, reflexed, tube villous as 9 ; anthers with obtuse 

 appendages at apex ; filaments thickened immediately below the anther : 

 setae filamentous, slightly flattened and spreading at apex, or flattened 

 throughout as half-aborted bracts ; achene of £ smaller by ^ than that 

 of 9. — Lag. Gen. et Sp. Nov. 33, no. 406 (1816). Oedera trinervia, 

 Spr. in Bot. Gart. Halle, 63 (1800). Brotera Contrayerva, Spr. in 

 Schrad. Jouru. Bot. iv. t. 5 (1800), not Millera Oontrayerba, Cav. 

 Nauemburgia trinervata, Willd. Sp. PI. iii. 2393 (1804). Broteroa trin- 

 ervata,, DC. Prod. v. 636 (1836). Brotera Sprengelii, H. Cass. Diet, 

 xxxiv. 304. Flaveria trinervata, Baillon, Hist. PI. viii. 55 (1886). 

 Flaveria trinervia (Spreng.) Mohr, Cont. Nat. Herb. vi. 810 (1901). — 

 Alabama: adventive with ballast, Mobile County, 3fohr, Cont. Nat. 

 Herb. vi. 810 (1901) (hb. Geol. Surv.,hb. Mohr). Texas : Barstow, S. M. 

 Tracy, 8161, Oct. 1902 (hb. Gr.) ; Rio Grande, Wright, 356, Oct. 1849 

 (hb. Gr., hb. U.S.) ; near Dofiana, valley of Rio Grande, Parry, Bige- 

 low, Wright, and Schott, 593 (hb. U. S.). New Mexico : Mesilla, E. O. 

 Wooton, 51, June, 1898, alt. 1300 m. (hb. M. B. G., hb. U. S.) ; Roswell, 

 F. S. Earle & E. S. Earle, 304, Aug. 1900, alt. 1,200 m. (hb. M. B. G., 

 hb. U. S.); Las Cruces, Vasey, 184, 1881 (hb. J. D. S., hb. U. S.). 

 Coahuila: San Carlos, Berlandier 2372, Nov. 1831 (hb. Gr.); Parras, 

 Palmer, 686, Oct. 1880 (hb. Gr., hb. U. S., hb. J. D. S., hb. M. B. G.) , 



