Lobelia longicaulis Brandegee

Lobelia longicaulis Brand. Univ. Calif. Publ. Bot. 6: 73. 1914
Lobelia neglecia Vatke, Linnaea 38: 720. 1874. {Ehrenberg 520, Berlin!) Not Lobelia neglecta
R. &S. 1819. Dortmannia neglecta Kuntze, Rev. Gen. 973. 1891.
Lobelia urticifolia F. E. Wimmer, Repert. Sp. Nov. 22: 195. 1926. (Based on L. neglecia Vatke.) Lobelia poasensis F. E. Wimmer, Ann. Naturh. Mus. Wien 46: 239. 1933. (Cufodontis 605, isotype.
Field!)
Perennial, with short woody caudex and tufted fibrous or somewhat tuberous roots; stems weakly erect, decumbent or prostrate, 15-50 cm. long, often several from the same root, simple, or with few weak subordinate side branches, 1-2 (rarely 4) mm. in diameter at base, green, or purplish below, rather sparsely chaffy-pubescent, the angles somewhat winged ; cauline leaves few-20, spreading, thin or even membranous, sparsely chaffy-pubescent especially on the veins, coarsely and irregularly sharp-serrate with 2-5 teeth per cm. the blades mostly about twice as long as wide, 1-3 cm. wide by 2.5-8 cm. long or the lower smaller, ovate to broadly lanceolate or elliptic, acute or short-acuminate at tip, the base cuneate, subpetiolate or with a distinct margined petiole up to 1 cm. long; inflorescence few-35 cm. long, often occupying half the stem or more when in fruit; flowers few-25, the lower or sometimes all in the a.xils of the upper leaves, the bracts then scarcely reduced; pedicels spreading, straight or somewhat curved upward near tip, 8-30 mm. long in fruit, sparsely chaffy-pubescent (or minutely prickly, especially near distal end) or nearly glabrous; bracteoles none; flower-bracts all leafy, the upper as large as the lower or more often somewhat reduced, lanceolate to Hnear; flower 8-U mm. long, including hypanthium; corolla pale lavender (according to Skutch) or nearly white, minutely pubescent at least on the veins without, the lower lip with two green tubercles within at base, the tube 3-4 mm. long, entire except for the dorsal fissure, which extends to a point 0.7-0.3 mm. from base, the lobes of the lower lip elliptic, 1-1.5 mm. wide by 2-3.5 mm. long, the two upper lobes nearly linear, 2-3.2 mm. long; filament-tube (2.5?) 3.5—4.5 mm. long, the filaraenls pubescent at least below, connate about a third their length or a little more, adnale to the corolla-tube for about 0.7 mm.; anther-tube 1.0-1.6 mm. long, the two smaller anthers minulcly white-tufted at tip, the 3 larger ciliate on the back; hypanthium in anthesis campanulate, chaffyor prickly-pubescent or nearly glabrous, becoming ellipsoid or long-campanulate in fruit, 2.0-3.5 mm. in diameter; capsule 5.5-10 mm. long, ellipsoid, the free part 1.5-3 mm. long, one-third to two-thirds as long as the hypanlhium-tubc; calyx-lobes linear-subulate, entire, ciliate or nearly glabrous, (1.6) 3-4 mm. long; seeds ellipsoid, smooth, shining, 0.5 mm. long.
TvPB locality: Finca CovadonKa, Chiapas, Purpus 6697 (II. of Calif.!).
DiSTKiBUTiON: fcxico (state) and Michoacin to western Paiioiiia, ni<«lly at elevations of 20003000 m.
LobalU plabeU V. P.. Wimmer, Repert. Sp. Nov. 22: 194. 1926 {Liebmann pi. mex. 7772, Coi>cnagcn!) ii scarcely distinct, difTcrinx only in the linear and clonKalcd fluwcr-bracta, and in the apparently annual duration of the plants. The range is Mexico (state) to Oaxaca and Chiapas.

Lobelia longicaulis là loài thực vật có hoa trong họ Hoa chuông. Loài này được Brandegee mô tả khoa học đầu tiên năm 1914.