qo T UNO LA ye See a 
1921] 
PAYSON—MONOGRAPH OF THE GENUS LESQUERELLA 183 
two species. L. angustifolia is probably limited to calcareous 
soils. 
25. L. Lindheimeri (Gray) Wats. Proc. Am. Acad. 23: 253. 
1888; Coulter, Contr. U. S. Nat. Herb. 2: 18. 1891; Wats. in 
Gray, Syn. Fl. N. Am. 1:: 120. 1895; Small, Fl. Southeastern 
U. S. 470. 1903, ed. 2,470. 1913. 
Vesicaria Lindheimeri Gray, Bost. Jour. Nat. Hist. (Pl. Lindh.) 
6:145. 1850; Walp. Ann. 2:39. 1851. 
Alyssum Lindheimeri Kuntze, Rev. Gen. Pl. 2: 931. 1891. 
Lesquerella Gordonii Heller, Contr. Herb. Franklin and Mar- 
shall College 1: 40. 1895. 
Annual or short-lived peren- 
nial, canescent throughout with 
minute stellae, raysfew to many, 
branched, distinct or irregularly 
coherent; stems erect or decum- 
bent, 1.5-4 dm. long, simple or 
branched; terminal bud appar- 
ently developing a fertile stem; 
radical leaves usually more dense- 
ly stellate beneath, lyrately pin- 
natifid, oblanceolate, 2-6 cm. 
long; cauline leaves lanceolate 
or oblanceolate, conspicuously 
toothed, 1-3 em. long; petals yel- 
low, spatulate; filaments slight- 
ly enlarged at the base; fruit- 
ing inflorescence elongated; ped- 
icels horizontal, more or less sigmoid, 8-13 mm. long; pods erect 
or ascending, glabrous, subglobose, 4-5 mm. in diameter, stipe 1 
mm. or more long; septum nerved, areolae not tortuous; ovules 
about 8 in each cell, funiculi attached to the septum for about 
one-half their lengths; seeds not margined nor winged. 
Distribution: southern Texas. 
Specimens examined: 
Texas: black, stiff prairie soil east of Victoria, Feb., 1845, 
Lindheimer 327 (Mo. Bot. Gard. Herb.); along Corpus Christi 
Fig. 17. L. Lindheimeri. Habit sketch 
x14. Trichomes x 25. 
