Lobelia gypsophila T. J. Ayers

Heterotoma pringlei B. L. Robinson, Proc. Am. Acad 44:615. 1909.
Stem erect, simple or nearly so, slender and wiry, up to 1 mm. in diameter at base, purplish nearly throughout, 6-35 cm. high, the whole plant glabrous; leaves all radical or nearly so, 10 or fewer, rigid and thickish when dry, purplish or greenish, spatulate or oblanceolate, acute or obtuse at tip, the base cuneate, narrowed to a petiole 1 cm. long or less, the blades sometimes broadly elliptic, sharply set off from the petiole; blades 2-4 mm. broad, 4-6 mm. long, with 2 or 3 sharp teeth on the margin on each side of the midrib, the cauliue leaves, if present, linear, entire, obtuse, 5-20 mm. long; inflorescence sectmd, 2.5-15 cm. long, loosely 5-10flowered, the stem sometimes naked below it or with 1 or 2 small bracts; pedicels wide-spreading, filiform, 6-15 ram. long in fruit, smooth and glabrous, nearly straight except the distal end, which is sharply ctirv'ed outward so that the mature capsule is pendent; bracteoles none; flower-bracts linear or nearly so, entire, blimt, 2-15 mm. long; flower 7-8 mm. long, including hypanthium; corolla light-blue when dry, the tube 1.7-2.0 mm. long, entire except for the dorsal fissure which extends about two-thirds its length, the two upper lobes about 0.5 mm. broad by 2-2.3 mm. long, the lower Up 3.5-5 mm. long, the lobes elliptic or obovate; filamenttube 1.5 mm. long, the filaments connate about one-third their length; anther-tube 1.0-1.2 mm. long, the two shorter anthers white-tufted at tip, the three larger very minutely pubescent on the backs; hypanthium unilaterally short-campanidate, often appearing oblong with a truncate base, in fruit becoming ellipsoid, about 1.5 mm. in diameter; spur broadly conic, about 1 mm. high and broad, formed by a pouch-like enlargement of the hypanthium; hj-panthium varying to regular or essentially so, the spur then wanting; capsidc about two-thirds inferior, about 2.5 mm. long; calyx-lobes linear or nearly so, entire, rounded or blunt at tip, green or purplish, 1.0-1.5 mm. long, the two lower erect (in line with long axis of flower) or slightly spreading; seeds light brown, about 0.3 mm. in length.
TvTB ixtCAhiTv: San L4zaro Mountains. Nucvo Lc6ii, PringU 13274 (Gray!). DisTKiBt'TiON: Calcareous areas, mountains of southeastern Nuevo Le6n.
DOUDTPUL SPECIUS MvopsiA MKxiCANA Pfesl, Prodr. Mon. Lob. 8. 1836. The type locality is "Mexico," and the type was perhaps collected by Hacnke between Acapuico and Mexico City, but has not been located (see Bull. Torrcy Club 67: 143-144. 1940).