cheiranthus. CRUCIFERJE. 36 



C. inconspicuus Greene Pitt. iii. 134. Erysimum parvijiorum Nmt. 

 (1838), not Pers. (1807) Cinereous and scabrous with appressed forked 

 hairs: stems erect, 10-18 inches high: leaves narrow, oblong-linear or lan- 

 ceolate, mostly entire, the radical crowded, sometimes repand-dentate : 

 sepals linear-oblong, acute, 3 lines long, little surpassed by the narrow sul- 

 phur-yellow petals : pedicels 2-3 lines long, spreading in fruit : pods slen- 

 der, suberect, 1-2 inches long, scarcely narrowed above, tipped with a short 

 stout style and 2-lobed stigma. Eastern Washington to Alaska, Wyoming 

 and Minnesota. 



C. elatus Greene 1. c. 135. Erysimum elatum Nutt. Scabrous and usu- 

 ally canescent with appressed 2-parted hairs: stems erect from a biennial 

 or short-lived perennial root, 1-6 feet high, usually simple, angled; leaves 

 lanceolate to entire or repand-dentate, or the lowest pinnatifid : petals 

 yellow or orange, 6-8 lines long, with broadly obovate suborbicular, blade 

 the very slender claw, much exceeding the oblong or linear sepals : pods 

 2-5 inches long by a line wide usually sharply angled, erect or spreading 

 on spreading pedicels 2-6 lines long ; style 1-2 lines long ; stigma some- 

 what 2-lobed: seeds oblong, brown, often sharply wing-appendaged at the 

 apex. Common on dry hillsides, California to Brit. Columbia. 



* * * Flowers large or middle-sized, pods more strongly flatten- 

 ed, 1-nerved or somewhat keeled. 



C. occiden talis Watson Proc. Amer. Acad, xxiii, 261. Erysimum oc- 

 cidental, Rob. Stems erect, simple or branching from near the base, 2-18 

 inches high, from an annual or biennial root, becoming stout, angular, 

 finely pubescent with appressed forked hairs : narrowly linear to lance-lin- 

 ear, leaves attenuate to long slender petioles entire or nearly so : racemes 

 at first short, but becoming 4-8 inches long in fruit : pedicels stout, spread- 

 ing 2-4 lines long: petals light yellow, 8-10 lines long, much exceeding the 

 pale narrowly-oblong strongly saccate calyx : pods 3-4 inches long, 1% lines 

 broad, rather abruptly beaked; style slender, 2 lines long; stigma small : 

 seeds oblong, rather broadly winged : cotyledons accumbent. On sandy or 

 gravelly banks, Klickitat county, Washington to Nevada. 



C. arenicola Greene 1. c. 131. Erysimum arenicola Watson Proc, Am. 

 Acad, xxvi, 142- Cespitose perennial : stems several from the densely mul- 

 ticipital caudex, terete, 6-8 inches high : leaves very numerous, chiefly 

 clustered at the base, oblanceolate, repandly denticulate, including the 

 petiole \% inches long, 2-3 lines broad, pubescent with white appressed 

 2-3 pointed hairs: racemes short, rather few-flowered: pedicels spreading, 

 a line long : sepals 4 lines long ; petals unknown : pods very gradually nar- 

 rowed to a point: cotyledons oblique-incumbent. Olympic Mountains 

 Washington, 5000 feet altitude. C. V. Piper. 



C. capitatus Dough in Hook. Fl. 1, 38. Cheiranthus asper Cham. & 

 Schlecht. in Linnxa i, 14. Finely pubescent with appressed 2-parted or on the 

 lowest leaves somewhat stellate hairs: stem 3-24 inches high from a per- 

 ennial root, somewhat angular, stout, simple or less frequently branched, 

 sometimes from the base : leaves oblong to spatulate or linear, attenuate 

 below, entire or more or less deeply repand-dentate: flowers light yellow, 

 in a many-flowered at first subcapitate but elongating raceme : petals 8-12 

 lines long, with broad rounded blade and slender claw: pods 1-4 inches 

 long, 1-1)*> lines broad; valves flattish, 1-nerved: style stout, %-\ line 

 long: stigma broad: seeds oblong, brown, margined. Common on the 

 coast from Curry county, Oregon to California. 



3 NASTURTIUM R. Br. in Ait. Hort. Kew ed. 2, iv, 109. 



Perennial herbs with lyrately compound or simple and pin- 

 natifid or undivided leaves and white flowers. Sepals erect. Pet- 

 als unguiculate. Pods short, turgid, little compressed, nerveless. 



