370 MISC. PUBLICATION 42 3, IT. S. DEPT. OF AGRICULTURE 



2. Erysimum capitatum (Dougl.) Greene, Fl. Francisc. 269. 1891. 



Cheiranthus capitatus Dougl. ex Hook., Fl. Bor. Amer 1: 38 



1833. 

 Erysimum elatum Nutt. ex Torr. and Gray, Fl. North Amer. 1 ■ 



95. 1838. 

 Erysimum wheeleri Rothr. in Wheeler, U. S. Survey West 100th 



Mer. Rpt. 6: 64. 1879. 

 Cheirinia elata Rydb., Torrey Bot. Club Bui. 39: 323. 1912. 

 Cheirinia wheeleri Rydb., ibid. 



Throughout the State except the extreme western portion, 2,500 to 

 9,500 feet, March to September. Saskatchewan to Washington, 

 south to New Mexico, Arizona, and California. 



Western -wallflower, a showy plant, with flowers resembling those of 

 the cultivated wallflower. The petals are usually bright yellow, but 

 in the form described as E. wheeleri they are orange or maroon, and 

 the plant is usually found in coniferous forests, at higher altitudes, 

 rarely below 7,000 feet. This form is perhaps entitled to varietal 

 rank. 



34. MALCOLMIA 



Annual; herbage roughly pubescent with mostly forked hairs; stems 

 several, sparingly branched above; leaves petioled, the blades oblong 

 or lanceolate, coarsely few-dentate; petals purplish pink, the blades 

 much shorter than the claws; pods ascending-spreading, tetragonal, 

 slender, 4 to 6 cm. long, with a short, conic beak. 



1. Malcolmia africana (L.) R. Br. in Ait. f., Hort. Kew., ed. 2, 4: 121. 

 1812. 



Hesperis africana L., Sp. PL 663. 1753. 



Near Wolf Hole and Fredonia (northern Mohave County), 3,500 to 

 4,500 feet, April and May. Utah, southern Nevada, and north- 

 western Arizona ; introduced from the Mediterranean region. 



35. CONRINGIA. Hares-ear-mustard 



Plant glabrous, annual; stems tall, leafy; stem leaves sessile, the 

 blades broad, entire or denticulate, with clasping bases; petals pale 

 yellow; pods long and narrow, 4-sided, spreading; seeds in 1 row in 

 each cell. 



1. Conringia orientalis (L.) Dum., Fl. Belg. 123. 1827. 



Brassica orientalis L., Sp. PI. 666. 1753. 



Keam Canyon, Navajo County, 6,300 feet (Peebles and Smith 

 13406). Here and there in the United States; introduced from 

 Europe. 



47. CAPPARIDACEAE. Caper family 



Plants herbaceous or woody, often ill-scented; leaves alternate, 

 simple or palmately compound; flowers perfect, regular or nearly so, 

 commonly in bracted racemes; sepals and petals 4; stamens 6 or more, 

 usually much exserted; ovary commonly 1 -celled and stipitate; fruit a 

 2-valved pod, or berrylike. 



