[Vol. 8 
182 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
24. L. angustifolia (Nutt.) Wats. Proc. Am. Acad. 23: 253. 
1888; Wats. in Gray, Syn. Fl. N. Am. 1': 120. 1895; Small, 
Fl. Southeastern U. S. 471. 1903, and ed. 2, 471. 1913. 
Vesicaria angustifolia Nutt. ex Torr. & Gray, Fl. N. Am. 1: 
101. 1838; Walp. Rep. 1: 141. 1842; Dietr. Gen. Pl. 3: 639. 
1843. 
Biennial ?, canescent with scarcely contiguous stellae, stellae 
small, rays few to many, branched; stems numerous, slender, 
erect or decumbent, 1-2 dm. high, branched; terminal bud ap- 
parently developing into a fertile stem; radical leaves 1-2 cm. 
long, entire to sublyrate, narrowly oblanceolate, narrowed to a 
slender rae cauline leaves linear to narrowly oblanceolate, 
R entire, 1-2 cm. long; petals yellow, 
spatulate, about 5 mm. long; filaments 
abruptly dilated at the base; fruiting 
inflorescence short but not crowded; 
pedicels straight, strongly ascending, 
slender, 7-8 mm. long; pods erect, 
subsessile, glabrous, exactly globose, 
2-3 mm. in diameter; styles slender, 
3-4 mm. long; septum thin, nerved, 
areolae tortuous; ovules 2 in each cell, 
Fig. 16 L. angustifolia. Habit funiculi attached to septum less dat 
sketch x J$. Trichomes x 25. one-half their lengths; seeds flat, not 
margined. 
Distribution: Arkansas, southwestern Missouri, and prob- 
ably western Oklahoma. 
Specimens examined: 
Missouri: Willard, 1887, Blankinship (U. S. Nat. Herb.); 
Greene County, April 30, 1887, Blankinship (Mo. Bot. Gard. 
Herb.); Greene County, June, 1899, Plank (Mo. Bot. Gard. 
Herb.); Springfield, May 7, 1887, Blankinship (Mo. Bot. Gard. 
Herb.). 
From L. gracilis, with which this species has been confused 
in herbaria, it is at once separable by the numerous slender 
stems that apparently never attain the height reached by L 
gracilis. 'The sessile pods, the dilated bases of the filaments, 
and the few ovules in each cell serve farther to distinguish these 
