Lesquerella. CRUCIFER^. 117 



base : petals broadly spatulate, 2 to 4 lines loug : filaments slightly dilated for a third of 

 their length : pods ascending, 2 lines in diameter ; the very slender style as loug ; cells 6-8- 

 ovuled; the fruiting raceme short and crowded. — Vesicaria densijiora, Gray, PI. Lindh. 

 pt. 2, 145. — Central Texas. 



§ 2. Lesquerella proper. Canescent with fine appressed often compact 

 or lepidote-stellate pubescence : seeds immarginate : filaments filiform or linear- 

 subulate. — Wats. 1. c. 



* Ovary and pod finely pubescent, sessile or very nearly so ; cells 2-8-ovuled. 

 -f— Pods not globose : biennials or perennials with simple stems. 

 ++ Pods ovate to oblong-ovate, compressed ; the valves conve.x (especially toward the base), 

 acute or acutish, erect on spreading or ascending pedicels : pubescence compact and 

 rarely if at all distinctly stellate : western species. 



Li. OCCidentalis, Watson, 1. c. Caudex usually simple ; stems a foot high or less : lower 

 leaves oblanceolate, coarsely sinuate-dentate ; the cauline spatulate, entire : petals spatulate, 

 about 3 lines long : pods oval, acutish, 3 or 4 lines long ; the slender style 2 lines long ; cells 

 4-ovuled. — Vesicaria occidentalis, Wats. Proc. Am. Acad. xx. 353. — Oregon, Mitchell and 

 Multnomah Counties, Howell, and N. California, near Yreka, Greene. Taller specimens 

 from the White Bluffs of the Columbia, Wasliington (Brandegee), have broadly obovate 

 obtuse fruit and may be distinct. 



L. Kingii, Watson. Stems shorter, procumbent or decumbent : leaves entire ; the radical 

 ovate on slender petioles ; the cauline spatulate : filaments filiform : pods on shorter pedicels, 

 oblong-obovate, acute, 2 or 3 lines loug ; the cells 2-4-ovuled ; style a line long. — Wats. 1. c. 

 xxiii. 251. Vesicaria Kingii, Wats. 1. c. xx. 353.1 — ]^_ Nevada, Kaolin Hills, Stretch; East 

 and West Plumboldt Mountains, Watson ; California, Lassen's Peak, Lemmon, Mrs. Austin.'^ 



L. alpina, Watson. Dwarf (1 to 3 inches high), usually cespitose and multicipital ; stems 

 slender : leaves entire, narrow, linear to linear-oblauceolate : petals 2 or 3 lines long, spatu- 

 late, with the base somewhat broadly wing-dilated : pods on straight or more or less curved 

 pedicels, compressed, oblong-ovate, acute, 2 lines long ; the slender style about as long ; cells 

 2-4-o^^lled ; septum sometimes perforate. — Wats. 1. c. xxiii. 251. Vesicaria alpina, Nutt. 

 in Torr. & Gray, Fl. i. 102. V. Lndoviciana, Gray, Proc. Acad. Philad. 1863, 58, not DC. — 

 Cypress Hills, Canada, Macoun, to Colorado and Montana. Specimens from Greene River, 

 Wyoming (Parrij), have the pubescence more loosely stellate throughout. 



Var. intermedia, Watson, 1. c. Stems stouter (1 to 6 inches high) : flowers larger; 

 the oblong sepals 2^ to 4 lines long and the petals more narrowly spatulate : pods ovate- 

 elliptical ; the cells 4-ovuled and the styles usually nearly as long. — Vesicaria alpina, 

 Gray, PI. Fendl. 9. —New Mexico, Fendler, no. 38 ; S. Colorado, Pueblo County, Greene; 

 S. Utah, Pnrvjj. 



L. Arizonica, Watson. Dwarf, cespitose and multicipital, 1 to 3 inches high : leaves as 

 in the preceding but the lower usually shorter and more broadly oblanceolate : flowers large, 

 often bright yellow : sepals oblong-ovate, 2 lines long or less : petals with a broad wing- 

 dilated undulate claw scarcely longer than the rounded blade : pods broadly ovate ; cells 

 4-ovuled; the style usually about half as long. — Wats. 1. c. 251,254. — Arizona, Jupiter 

 Mountains, near Prescott, Palmer ; near Williams Station, Lemmon ; Peach Springs, Lemmon, 

 Jones ; Mokiak Pass, near St. George, Palmer. 



++ ++ Pods oblong or ovate-oblong, acute, not compressed or slightly so, erect on usually 

 divaricate curved pedicels : Rocky Mountain species. 

 L. montana, Watson, 1. c. 251. Pubescence often evidently stellate: caudex rarely 

 branclied ; tlie stems less than a foot long : leaves oblanceolate, or the radical often sub- 

 ovate on .slender petioles, often with one or two obscure teeth : petals spatulate, 3 or 4 lines 



1 Add syn. Vesicaria montrma, Brew. & Wats. Bot. Calif, i. 43; K. Brandegee, Zee, iv. 171, not 

 Gray. Physaria montana, Greene, Fl. Francis, 249. 



2 And on Snow Mountain, ace. to K. Brandegee, 1. c; also on Tele.scope Peak, Panamint Mts., 

 ace. to Coville, Contrih. U. S. Nat. Herb. iv. 62. 



