7tj CRUCIFERAE 



21. LYROCARPA Hook. & Harv. 



Erect herbs, ours peremiial, witli soiiunvlmt floxuoiis branches and stellate pu- 

 bescence. Leaves toothed or rum-inately iiiniiatifid. Sepals linear-oblong, sharply 

 acute, stronu'ly connivcnt. Petals in ours linear-elonj^ated. Style short or none. 

 Sti^Mua very far^'e. Pod in ours obcordate or fiddle-shaped, flattened contrary to 

 the'iiarrowpartition.— Species 2, California and Mexico. (Greek lyra, a lyre, and 

 carpos. fruit). 



1. L. coulteri Hook. & Harv. Stems several, woody at base, 11/2 to 3 feet high; 

 flowers in a loo.se raceme, maturing slowly, sweet-scented; sepals stellate-tomen- 

 tose. strongly eonnivent near or above the middle, becoming distmct from below; 

 petals tawny yellow, lance-linear, 6 to 8 lines long, tapering to a long slender claw; 

 pods ;? to 6 lines long; seeds 2 to several in each cell, round, flat. 



Sandy Hats, 500 to 1500 feet : western Colorado Desert. South to Lower Cali- 

 fornia and Sonora, ea.st to Arizona. INIar.-Apr. 



L0C8.— Borrcgo Spr., Puri)us; San Felipe Narrows, Jepson 12,532; Sentenac Valley, Jepson 

 8781 ; Vallecito, Jepson 8548. 



Kefs. — Lyrocarp.\ coulteri ITook. & Harv. Lond. Jour. Bot. 4:76, t. 4 (1845), the type 

 from Cal., collected by Coulter; B. & W. Bot. Cal. 1 :44 (1876) ; Jepson, Man. 435, fig. 421 (1925). 



22. LESQUERELLA Wats. 



Low herbs, ours stellate-pubescent throughout. Flowers usually yellow. Style 

 slender; stigma entire or nearly so. Pod globose-inflated to obovate; cells 2 to 

 15-seeded; seeds flattened; cotyledons accumbent. — Species about 35, one in South 

 America, the remainder in North America. (Leo Lesquereux, distinguished Amer- 

 ican paleobotanist and bryologist, 1805-1889.) 

 Annual; basal leaves not forminp: a rosette; flowers 2 to 3 lines long; pods globose, glabrous or 



puberulent; style a little shorter than the pod; pedicels curved \. L. pahneri. 



Perennial; basal leaves' in a rosette; style equaling or slightly longer than the pod; pedicels 

 straight or straightish. 

 Pods globose or subglobose, thinly pubescent; flowers yellow, 3 to 5% lines long... .2. L. Tcingii. 



Pods flattened on the margins, ovate, densely pubescent; flowers deep yellow, 4 lines long 



3. L. occidentalis, 



1. L. palmeri Wats. Stems one or few from the base, slender, ascending or 

 mostly erect, 4 to 12 inches high; leaf -blades oblong-oblanceolate or linear, mostly 

 acute, 3 to 12 lines long, narrowed to a slender petiole or the upper subsessile; pedi- 

 cels ascending, horizontal or recurved, usually sigmoid; ovules 4 to 6 in each cell; 

 pods globose, IV2 lines in diameter. 



Desert hills, 500 to 5000 feet: eastern Mohave Desert; northeastern Colorado 

 Desert. East to Arizona and south to Lower California. Mar.-Apr. 



Locs. — New York Mts., J. Grinnell; Bonanza, Providence Mts., Mum ^ Harwood 3444; 

 Goffs, Parish 9647; Fenner, Newlon 532; Canon Sprs., Colorado Desert; Salvation Sprs., Colo- 

 rado Desert. 



Kefs. — LESQUERELLA PALiiERi Wats. Proc. Am. Acad. 23:255 (1888), based on spms. by 

 Palmer (cult, from Arizona seed) and Orcutt (Topo Canon, L. Cal.) ; Jepson, Man. 435 (1925). 



2. L. kingii Wats. Stems ascending or decumbent, 2 to 7 inches long; blades 

 of basal leaves suborbicular to elliptic, entire or 1 to 3-dentate on each side, 3 to 9 

 lines long, drawn down to a petiole 1 to 1^/2 times as long; blades of cauline leaves 

 oblanceolate; pods 2 to 3 lines in diameter, the cells 2 to 4-ovuled. 



Mountain ranges bordering or lying within the desert interior, 5000 to 8000 

 feet: San Bernardino Mts.; east side of the Sierra Nevada (or its northern crests) 

 from Inyo Co. to Modoc Co. May-June. 



Locs. — Bear Lake, San Bernardino Mts., Pcirson 4600; Telescope Peak, Jepson 7022; Cam- 

 pito Mt., White Mts., Jepson 7335 ; Silver Canon, White Mts., Jepson 7335a; upper Squaw Valley, 

 Truckee River, Sonne; Lassen Peak, Jepson 4093; Lake City Mt., Modoc Co., C. C. Bruce 2136. 



