Part 2, 1915] CARDUACEAE : HELENIEAE 143 



Brolcra trinervata Pers. Syn. PI. 2: 498. 1807. 

 Flaveria repanda Lag. Gen. & Sp. Nov. 33. 1816. 

 Brotera Sprengelii Cass. Diet. Sci. Nat. 34: 306. 1825. 

 Flaveria trinervata Baillon, Hist. PI. 8: 55. L882. 



A dichotomously and divaricately branched annual; stem erect, 3-12 dm. high, some- 

 times tinged with red, glabrate; leaves connate, lanceolate, 3-nerved, serrate, 3-9 cm. long, 

 the lower short-petioled; cymes congested and head-like, 2 2.5 cm. broad, axillary, subtended 

 by three pairs of leaves; heads small, usually 1 -flowered, the flower either subligulate and 

 pistillate or regular and hermaphrodite; involucral bracts concave, 1 or 2, if the latter, the 

 outer shorter; corolla of the pistillate flowers 1.5 mm. long, the ligule oblique, 3-dentate; 

 corolla of the hermaphrodite flowers 2 mm. long; tube villous; throat campanulate; achene 

 2 mm. long, somewhat clavate; pappus wanting. 



Type locality: Botanical garden, Halle (cultivated). 



Distribution: Alabama to Arizona, Oaxaca, and Yucatan; Cuba; also in South America. 

 Introduced at Westford, Massachusetts. 



Illustrations: Jour. Bot. Schrad. 1800 2 : pi. 5; Baillon, Hist. PI. 8:/. 94, 95. 



2. Flaveria bidentis (L.) Kuntze, Rev. Gen. 3: 148. 1898. 



Ethulia bidentis L. Mant. 110. 1767. 



Eupatorium chilense Molina, Sagg. Chile 142. 1782. 



Milleria chiloensis Juss. Gen. 187, as synonym. 1789. 



Flaveria chilensis Juss.; J. F. Gmel. Syst. Nat. 2: 1269. 1791. 



Milleria Contrayerba Cav. Ic. 1: 2. 1791. 



Yermifuga corymbosa R. & P. Svst. Fl. Per. 216. 1798. 



Flaveria Contrayerba Pers. Syn. PI. 2: 489. 1807. 



Flaveria capitala Juss.; Smith, in Rees, Cycl. 14: Flaveria no. 1. 1810. 



Flaveria bonariensis DC. Prodr. 5: 635. 1836. 



A dichotomously branched herb; stem 3-10 dm. high, sometimes tinged with red, gla- 

 brous or sparingly villous on the obtuse angles and the nodes; leaves slightly connate, lanceo- 

 late-elliptic, 3-ribbed, serrate, 3-8 cm. long, glabrous; cymes 2-2.5 cm. broad, with scorpioid 

 branches; heads 2-9-flowered ; involucral bracts 3 with 1 or 2 small calyculate ones, the 

 principal ones 4 mm. long, oblanceolate, obtuse; ligule yellow, 1 mm. long, narrow, upright, 

 acute; disk-corollas 1-8, 2-3 mm. long; achenes 2 mm. long, that of the ray-flower slightly 

 larger. 



Type locality: "India?" 



Distribution: Alabama, Georgia, and Florida; Mexico; South America. 



Illustrations: Cav. Ic. 1: pi. 4; R. & P. Prodr. Fl. Per. pi. 24; Bot. Mag. pi. 2400; Feuillee, 

 Jour. Obs. 3: pi. 14 [upper figure]; E. & P. Nat. Pfi. 4 5 :/. 125. 



3. Flaveria robusta Rose, Contr. U. S. Nat. Herb. 1: 337. 1895. 



A somewhat dichotomously branched herb; stem about 12 dm. high, pubescent or glabrate 

 below; leaves linear-lanceolate or the upper linear, 4-13 cm. long, acuminate, tapering into 

 slender petioles, 3-ribbed, entire or serrulate; inflorescence open, corymbose; heads small, 

 3-flowered ; involucral bracts 3, incurved.'the calyculate ones minute or wanting ; ligule orbicular, 

 2 mm. long; disk-flowers 2; corollas 2 mm. long; tube glandular, not longer than the funnelform 

 throat; achenes 1.5 mm. long. 



Type locality: Colima. 

 Distribution: Colima to Chihuahua. 



4. Flaveria campestris J. R. Johnston, Proc. Am. Acad. 39: 287. 



1903. 



Flaveria angustifolia A. Gray (Mem. Am. Acad. II. 4: 88, hvponym. 1849); Coult. Contr. U. S. 

 Nat. Herb. 2: 234. 1892. Not F. angustifolia Pers. 1807. 



A dichotomously branched herb; stem erect, glabrous, or pubescent only at the nodes; 

 leaves linear or linear-lanceolate, serrulate, 3-ribbed, narrowed at the base, slightly connate, 

 2.5-7 cm. long, 1-2.5 cm. wide; inflorescence densely cymose; heads 4-5-flowered; involucral 

 bracts 3, nearly equal, 5 mm. long, the calyculate ones 2, unequal, 1-3 mm. long, linear-lanceo- 

 late; ligule oval, reflexed, 2.5 mm. long; disk-flowers 3-4; corollas 3 mm. long; tube slightly 



