38 CRUCIFER2B. parrya. 



CHEIRANTHUS. 



Tribe 1. Arabideae DC. Stigma when I obed prolonged over the 

 placentae. Pods 2-ccJlcd, sometimes incompletely so,regidarly dehi- 

 scent, flattened parallel to a broad partition or terete. Cotyledons 

 decumbent (incumbent to convolute in Chieranthus). 



1 PARRYA R. Br. in Parry Yoy. App. 268. 



Low perennial herbs with mostly radical entire or toothed 

 somewhat fleshy leaves, and rose-colored or purple flowers. Sep- 

 als erect, equal or the lateral ones saccate at base. Petals spatu- 

 late unguiculate. Anthers usually linear. Style short; stigma 

 lobes connate. Pods compressed, the valves plane, 1 -nerved. 

 Seeds in 1 or 2 rows in the cells, large, somewhat compressed, 

 orbicular. Cotyledons various. 



P. Menziesii Greene Bull. Torr. Club xiii, 143. Phcenicavlis Cheiranthoi- 

 des Nutt. T. & G. Fl. 1, 89. Cheiranthus Menziesii Watson Bot. King, 14. 

 Caudex stout and branching, the branches densely clothed with the persist- 

 ent petioles of former seasons : radical leaves spatulate or oblanceolate, 

 entire, 1-4 inches long, persistent, canescent, with a dense stellate pubesce- 

 nce, the petioles nearly glabrous: scape-like stems several from each branch 

 of the caudex, twice longer than the radical leaves, nearly glabrous, often 

 leafy-bracted below : flowers large dark purple or red, to ochroleucous, in 

 rather dense many-flowered racemes : pods spreading, on short, stout ped- 

 icels, 1-2 inches long, 1-2 lines broad, not carinate, attenuate to the slen- 

 der style, glabrous few-seeded. On stony hillsides, northern California 

 and Nevada to Brit. Columbia east of the Cascade Mountains. 



Var. lanuginosa Watson in Gray's Syn. Fl. 152. Pubescence more 

 loose and woolly. Eastern Washington. 



2 CHEIRANTHUS L. Gen. n. 815. 



Cheiranthus and Erysimum of authors. 



Biennial or perennial herbs With narrow entire or sparingly- 

 toothed leaves and yellow or purple flowers in simple racemes. 

 Sepals erect, oblong to linear-oblong, equal at base or the lateral 

 ones somewhat saccate. Petals commonly large with broad obo- 

 vate blade and slender elongated (daw. Stamens 6, free and un- 

 appendaged. Pods strongly compressed, broadly linear with flat 

 1-nerved valves or narrow and quadrangular with convex and 

 more or less* distinctly keeled valves. Seeds numerous, oblong 

 and turgid, or suborbicular and flattened or winged. Cotyledons 

 incumbent or acenmbent or the radical very oblique. 



* Petals 2-2^ lines long, yellow: pods subterete, 5-10 lines long: 

 cotyledons Incumbent or nearly so. 



('. tnrritoides Lam. Encycl. ii. 71(>. Erysimum cheiranthoidet L. 

 Stem erect, subterete, simple or with few subtermina] branches : leaves 

 Lanceolate, acute at each end, entire or remotely and obscurely denticu- 

 late, L-3 Inches lone, thin, green on both faces, sparsely and finely pubes- 

 cent: flowers small, yellow: pods obtusely angled, &-10 lines Long, on 

 somewhat spreading and rather slender pedicels, glabrous, slenderly snort- 

 beaked. Along streams, eastern Oregon to Alaska and across the conti- 

 nent. 



* * Petals 3-12 lines long, yellow or orange, randy purple. Pods 

 subterete or obviously 4-angled, not strongly compressed, 1-4 inches 

 lont:: cotyledons incumbent or randy oblique or somewhat acenmbent. 



