Cardami7ie. CRUCIFER^. 157 



slender, nearly terete, curving upward, about 10 lines in length. — Shuttleworth in distr. 

 Rugel; Gray, Proc. Am. Acad. xv. 46. Nasturtium officinale, Torr. & Gray, Fl. i. 666, not 

 L. N. sti/losuin, Shuttl. ace. to Gray, 1. c. — On river hanks, &c., Florida, Rugel, Leaven- 

 worth, Garher, Rothrock, Simpson, Curtiss. A species with the habit of N'asturtium officinale, 

 and, but for its long slender pods and uniseriate seeds, to be referred to that genus. 



C. Clematitis, Shuttl. Glabrous ; rootstock slender : stem lax, simple or branched, a 

 foot high : radical leaves small, reniform-cordate, occasionally with a pair of much smaller 

 leaflets on the petiole ; cauliue petiolate ; the petiole sagittately appendaged at base ; 

 terminal leaflet reniform to oblong and subhastately 3-lobed ; tlie lateral oblique and very 

 • variable : raceme nearly sessile : flowers white : pods about an inch long, with a long 

 slender style ; radicle cleft a third of its length. — Shuttl. in Wats. Bibl. Index, 53, excl. 

 syn. ; Chapm. Fl. ed. 2, 605 ; Gray, Proc. Am. Acad. xv. 45. — Springs and moist places in 

 the Southern Alleghanies ; ^ Smoky Mountains, Rugel, Roan Mountain, Grai/ ; Alabama, 

 Buckley. 



•i— -I— Western species. 



C. Breweri, Watson. Glabrous or slightly pubescent below : stems from a slender run- 

 ning rootstock, erect or decumbent at base, usually branched, a foot high or more : radical 

 leaves simple or with a pair of small rounded lateral leaflets, round-cordate, entire or sinu- 

 ate ; the cauline with usually rounded and sinuate or sometimes lobed leaflets ; the upper 

 more oblong or lanceolate: flowers small, white: pods 8 to 12 lines long, with a short 

 thick style, ascending or erect on pedicels 2 to 4 lines long; radicle scarcely cleft. — Ih-oc. 

 Am. Acad. x. 339; Brew. & Wats. Bot. Calif, i. 31. — In the Sierra Nevada near Sonora 

 Pass, Bretver, and near Carson City, Anderson; Humboldt Co., Calif., Rattan; Oregon, Hall 

 (no. 31), Howell ; Teton Eauge, Idaho, Coulter; Henry's Fork, Hayden.'^ 



C. angulata, Hook. Glabrous or more or less pubescent : stem erect from a rather slender 

 running rootstock, simple, 1 or 2 feet high: leaves all 3-foliolate or sometimes 5-foliolate; 

 leaflets ovate to oblong, usually cuueate at base and coarsely 3-5-toothed or the lateral 

 entire; the terminal not greatly larger than the lateral, al)out an inch long, exceeding the 

 petioles: racemes short, few-flowered: flowers white, larger: pods about 9 lines long includ- 

 ing the style (1 line long), on spreading or divaricate pedicels. — Fl. Bor.-Am. i. 44, & Bot. 

 IMisc. i. 343, t. 69. — Cascade Mountains of Oregon and Washington ; Puget Sound, Wilkes. 



C. purpurea, Cham. & Schlecht. Glabrous or sparingly hirsute: stems erect, 2 to 6 

 inches high : cauline leaves one or two ; leaflets entire, round-oval or ovate, acute ; the 

 terminal subcordate and somewhat 3-lobed : raceme few-flowered, often subtended by a 

 3-lobed foliaceous bract : flowers rather large, often purple or rose-colored : pods erect, 

 nearly an inch long ; style short, stout. — Linn«;a, i. 20 ; Hook. Fl. Bor.-Am. i. 44. — Arctic 

 Alaska; also on the Asiatic side of Bering Strait, Wright. A very imperfectly known 

 species. 



* * * Leaves all piunately divided with several pairs of leaflets. 

 ■i— Flowers rather large : petals (except in C. pratensis, var. occidentahs) 3 or 4 lines long. 



C. pratensis, L. Glabrous or somewhat pubescent below : stems erect from usually a very 

 short rootstock or rarely subtuberous fibrous-rooted b;ise, branched, a foot high or more : 

 radical leaves with small rounded leaflets I to 4 lines broad ; leaflets of the upper leaves 

 oblong to linear or oblanceolate, entire or rarely toothed, 2 to 10 lines long: flowers rather 

 large (3 to 6 lines long) in a broad corymb, white to deep rose-color ; ]iods 9 to 15 lines long 

 and a line wide, on ascending pedicels ; style short, rather stout. — Spec. ii. 656 ; DC. Syst. 

 ii. 256 ; Hook. Fl. Bor.-Am. i. 45 ; Torr. & Gray, Fl. i. 84 ; Lange, Medd. Groon. iii. 48. 

 C. digitata, Richards, in Fraukl. Lst .Tourn. ed. 1, App. 743 (reprint, p. 15). — Labrador to 

 New Brunswick ; Bristol, Vermont, Pringle ; New Jersey ; Central New York, Ontario,^ and 

 Lake Superior and northward to the Arctic Ocean ; Alaska. Rarely collected in fruit. 

 C. digitata, Richards, appears to be an arctic form Mith the leaves reduced to a few approxi- 

 mate linear leaflets. 



1 Northward to White Top Mt., S. W. Virginia, Small; also on Grandfather Mt., N. C, Small & 

 Heller. 



2 Northward to Vancouver Isl., Macoun. 



8 Southward into Michigan and even N. Indiana, Van Gorder. 



