WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 981 
21. ERUCA Mill. 
Branched annual with pirnately lobed or pinnatifid leaves and yellowish flowers; 
siliques linear-oblong, long-beaked, the valves 3-nerved, concave; seeds in 2 rows in 
in each cell. 
1. Eruca eruca (L.) Britton in Britt. & Brown, Tlustr. Fl. ed. 2. 2: 192. 1913. 
Brassica eruca L. Sp. Pl. 667. 1753. 
Eruca sativa Mill. Gard. Dict. ed. 8. no. 1. 1768. 
Type Ltocauty: ‘Habitat in Helvetia.” 
Rance: Native of Europe, introduced into many parts of North America. 
New Mexico: Mesilla Valley. 
22. BRASSICA L. Musrarp. 
Coarse annuals, 60 to 100 em. high or larger, with simple or pinnately lobed leaves 
10 to 15 em. long; flowers yellow, in terminal elongated racemes; siliques elongated, 
4-angled, beaked; seeds in one row in the cell. 
KEY TO THE SPECIES. 
Plants glabrous; pedicels 10 to 20 cm. long......---.-----+-++++--+++-- 1. B. juncea. 
Plants hispid; pedicels about 5 mm. long......---.------------------ 2. B. arvensis. 
1. Brassica juncea (L.) Coss. Bull. Soc. Bot. France 6: 609.1859. INDIAN MUSTARD. 
Sinapis juncea L. Sp. Pl. 668. 1753. 
Type Locauity: ‘‘Habitat in Asia.” 
New Mexico: Fresnal; Gilmores Ranch; Las Cruces; Ponchuelo Creek; Santa Fe; 
Espanola; Las Vegas; Shiprock; Agricultural College. 
Not uncommon in cultivated fields; widely introduced into North America from 
Europe. 
2. Brassica arvensis (L.) B. S. P. Prel. Cat. N. Y. 5. 1888. CHARLOCK. 
Sinapis arvensis L. Sp. Pl. 668. 1753. 
Brassica sinapistrum Boiss. Voy. Bot. Esp. 2: 39. 1839-45. 
Type Locauity: ‘Habitat in agris Europae.”’ 
New Mexico: Mesilla Valley. 
Introduced into grain fields, gardens, and waste ground in many parts of the United 
States. 
23. CHEIRINIA Link. WESTERN WALLFLOWER. 
Coarse biennials or perennials with harsh pubescence of branched appressed hairs; 
leaves alternate, entire or toothed, simple; flowers large for the family, 6 to 20 mm. 
long, in long terminal racemes; sepals oblong, one pair saccate; petals long-clawed, 
yellow, brownish, or maroon; siliques subterete or more or less strongly 4-angled. 
KEY TO THE SPECIES. 
Flowers small, less than 1 cm. long. 
Plants tall and slender; basal leaves fugacious; plant of the 
high mountains. ... : Lecce cece cece tence eee e cece cence 3. C.inconspicua. 
Plants low and stout, with persistent basal leaves; of the 
gravelly mesas of the southern part of the State........- 2. C. desertorum. 
Flowers large, more than 1 cm. long. 
Petals orange, reddish brown, or purplish maroon. ......------- 6. C. wheelert. 
Petals light golden yellow. 
Basal leaves, at least, silvery white; cauline leaves very 
NAITOW..-----2 eee eee ee ee eee eee eee eee eee eee 1. C. bakeri. 
