Lobelia divaricata Hook. & Arn.

Lobelia divaricata H. & A. Bot. Beech. Voy. 301. pi. 67. 1838
Rapuntium pusillum Presl, Prodr. Mon. Lob. 22. 1836. (Haenke, Prahal)
Lobelia pusilla A. DC. in DC. Prodr. 7: 379. 1839. Not Lobelia pusilla G. Don, 1834.
Dortmannia divaricata Kuntze, Rev. Gen. 972. 1891.
Dortmannia pusilla Kuntze, Rev. Gen. 973. 1891.
Lobelia Schmitzii F. E. Winimer, Repert. Sp. Nov. 26: 2. pi. 71, /. 2. 1929.
Lobelia Seleriana F. E. Wimmer. Repert. Sp. Nov. 38: 82. 1935. (Arsine 6995. US!)
Lobelia Irivialis F. E. Wimmer, Repert. Sp. Nov. 38: 83. 1935. (Purpiis 491S, isotype. Gray!)
Stems weak, simple and erect or branched and decumbent, often rooting at the lower nodes, usually not exceeding 1 mm. in diameter at base, usually reddish-purple at base and green above, 6-27 cm. in length, either smooth and glabrous throughout, sparsely pubescent in the lower axils, or plainly hirtellous below; cauline leaves few-1 2, often somewhat appressed, thin, glabrous or pubescent beneath at base, entire or sparingly toothed; principal leaves linear to broadly elliptic, reaching a maximum size of 0.7 cm. wide by 3 cm. long, their tips obtusely rounded to acute and their bases acute, subpetiolate, decurrent; lower leaves relatively broader, often suborbicular, their petioles 0.5 cm. long or less; inflorescence secund, 2-18 cm. long, often appearing pedunculate, loosely 1-10-flowered; pedicels filiform, stiff, strongly ascending, 10-25 (70) mm. long in fruit, smooth and glabrous, or rarely finely prickly, each with a pair of tiny bracteoles at base; flower-bracts linear, or the lower ones leafiike and resembling the upper leaves, the middle ones usually 3-8 mm. long; flower 9-13 mm. long, including h>T3anthium; corolla blue, often with dark veins, glabrous without, the tube sparsely hairy within, 3.5-4.0 mm. long, entire except for the dorsal fissure which extends to a point slightly more than 1 mm. from base, the lower lip with two conspicuous tubercles at base (according to Hooker & Amott) ; the lobes shorter than the tube, the upper ones erect, narrow, those of the lower lip elliptic, reflexed; filament-tube 2.5-3.5 mm. long, blue at least distally, the filaments connate one-half to two-thirds their length, ciliate at base; anther-tube 1.0-1.7 mm. long, gray, the two smaller anthers white-tufted at tip, the others minutely ciliate on backs; h>'panthium in anthesis narrowly obconic, glabrous, becoming cup-shaped or campanulate in fruit, 2-3 mm. across; capsule 5-6 (7.5) mm. long, one-half to three-fifths inferior; calyx-lobes linear or subulate, glabrous, entire, short-pointed, (2) 3-4.5 mm. long; seeds brown, ellipsoid, smooth, shining, 0.3-0.5 mm. long.
Type locality: "Talisco" Qalisco, near Tepic, Nayarit), Beechey (Kew!). Distribution: Coahuila to Mexico (D. F.), Michoacin, and Nayarit, at elevations up to about 2200 m.