56 CRUCIFERAE 



Swamps. 1000 to 3000 feet: cismoiitaiic Southern California from Santa Bar- 

 bara Co. to San Diego Co. South to ^Mexico. 



Locs. — Los Angeles (Abrams, Fl. Los Angeles 172) ; San Bernardino, Parish 379C; Julian, 

 San Diego Co. 



Refs. — Cardamine oambeui Wats. Proc. Am. Acad. 11:147 (1876), type loc. near Santa 

 Barbara, Gambcl, Eothroclc; Jepson, Man. 426 (1925). 



6. C. oligosperma Nutt. Hill Cress. Stems branched from the base or 

 simple, 3 to 14 inclies higli; herbage hispidulous or glabrous; leaves pinnate (the 

 basal in a rosette), i/o to V/2 inches long (including the petiole) ; leaflets 5 to 11, 

 little unequal, with a notch in each side toward the apex, 1 to 4 lines long, petiolu- 

 late; petals much surpassing the sepals; pods 6 to 9 (or 12) lines long; valves 

 separating while still green-herbaceous; pedicels 1 to 2 lines long, little accrescent 

 in fruit. 



Under oaks and other trees in openly wooded country, 20 to 700 feet : Santa 

 Monica Mts.; Coast Ranges from Monterey Co. to Humboldt Co.; Sierra foothills 

 from Sacramento Co. to Shasta Co. North to British Columbia. Feb.-Mar. 



Locs. — Topango Canon, Los Angeles coast (ace. Parish, Bull. S. Cal. Acad. 8:7) ; Del Monte, 

 Berg; Los Gatos; Alum Ptock, Santa Clara Co., Pendleton 672; Berkeley, Jepson 13,357; Mill 

 Valley, Chandler; Olema, Jepson; Santa Eosa. M. S. Baker 97; Duncan Mills, Bavy 1643; Kel- 

 seyviile. Lake Co., Jrwin 23; Humboldt Bay, Tracn 4923; Redding, BlanUnship; Burney Falls, 

 Shasta Co., M. S. Balcer; Michigan Bar, ne. Sacramento Co., Jepson 15,259. 



Refs. — Cakdamine OLIGOSPERMA Nutt. ; T. &G. Fl. 1:85 (1838), type loc. shady woods of the 

 Columbia, Nuttall; Jepson, Fl. W. Mid. Cal. 222 (1901), ed. 2, 188 (1911), Man. 426 (1925). 



7. C. pennsylvanica ]\Iuhl. Quaker Cress. Annual or biennial; stems simple 

 or branched, 8 to 20 inches high; herbage glabrous or nearly so; leaflets 7 to 13, 

 mostly oblong or linear, but those of the lowest leaves suborbicular, mostly sessile; 

 pods suberect, on spreading pedicels 3 to 6 lines long. 



Moist places, chiefly in shade, 3000 to 4000 feet : eastern Nevada Co. North to 

 Alaska, east to the Atlantic. May. 



Loc. — Truckee, Sonne 628. 



Refs. — Cakdamine pennsylvanica Muhl.; Willd. Sp. PI. 3:486 (1800), type loe. Pennsyl- 

 vania; Britt. & Br. 111. Fl. 2:128, fig. 1726 (1897) ; Jepson, Man. 426 (1925). 



14. DENTARIA L. Toothwort 



Glabrous perennials. Stems and one or two long-petioled basal leaves from 

 tuberous rootstocks, the stems usually with few leaves, rarely branched, and spar- 

 ingly leafy. Flowers in a raceme, large, white or rose-tinted. Sepals equal at 

 base, erect or nearly so. Petals with slender claws and ovate spreading limb, much 

 longer than the sepals. Pod linear, flattened parallel to the partition, stout, atten- 

 uate above into the slender style, the valves and partitions not nerved; seeds wing- 

 less. — Species about 10, northern hemisphere. (Latin dens, a tooth, the rootstocks 

 toothsome in some species.) 



Leaves all simple; rare species. 



Cauline leaves scattered along the stem, their blades round-cordate; flowers in a raceme; 



foothills 1- B. cardiophylla. 



Cauline leaves approximate beneath the corymbose raceme, their blades suborbicular, obtuse 



at base; montane 2. B. corymbosa. 



Cauline leaves pinnate or pinnately parted, the basal simple or 3 to 5-foliolate. 



Style 1 to 3 lines long ; leaf -segments mostly ovate or roundish ; common.. ..3. B. integrifolia. 

 Style 5 lines long; leaf -segments narrow; rare 4. B. macrocarpa. 



1. D. cardiophylla Rob. Lad's Toothwort. Stem 6 to 11 inches high; leaf - 

 blades cordate, denticulate, shortly acutish or obtuse, 1^4 to 2 inches wide; petioles 

 2 to 3 inches long, or of the cauline leaves 5 to 6 lines long; racemes subcorymbose ; 

 flowers 3^2 lines long; corolla white. 



