260 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



4. Odostemon fremontii (Torr.) Rydb. Bull. Torrey Club 33: 141. 1906. 

 Berberis fremontii Torr. U. S. & Mex. Bound. Bot. 30. 1859. 



Type locality: On the tributaries of the Rio Yirgeu, southern Utah. 



Range: Colorado and Utah to northern Arizona and New Mexico. 



New Mexico: Las Vegas (B. E. Fernow). Upper Sonoran Zone. 



Judging from the leaflets alone this specimen belongs here. It is an incomplete 

 one and it is impossible to be certain as to its identity. The locality from which it 

 comes is within what may be expected to be the range of 0. fremontii rather than 

 O.haematocarpus. The species should be looked for along the western border of the 

 State north of the middle, since it occurs in the mountains of adjacent Arizona. 



5. Odostemon wilcoxii (Kearney) Heller, Muhlenbergia 7: 139. 1912. 

 Berberis wilcoxii Kearney, Trans. N. Y. Acad. 14: 29. 1894. 



Type locality: Fort Huachuea, Arizona. 



Range: Southwestern New Mexico, southeastern Arizona, and adjacent Mexico. 

 Although we have seen no New Mexican specimens of this it is said by Dr. E. A. 

 Mearns 1 to grow in the San Luis Mountains. 



Order 26. PAPAVERALES. 



KEY TO THE FAMILIES. 



Sepals 2 or 3; endosperm present. 



Flowers regular; stamens numerous 54. PAPAVERACEAE (p. 260). 



Flowers irregular; stamens 6 (diadelphous) 55. FUMARIACEAE (p. 262). 



Sepals 4, rarely more; endosperm wanting. 



Capsules 2-celled; stamens 6, tetrad ynamous, 



rarely 2 or 4 56. BRASSICACEAE (p. 263). 



Capsules 1-celled; stamens various. 



Leaves compound; flowers showy; cap- 

 sules with 2 parietal placentae 57. CAPPARIDACEAE (p. 289). 



Leaves simple; flowers inconspicuous; 

 capsules with 3 to 6 parietal 

 placentae 57a. RESEDACEAE (p. 291). 



54. PAPAVERACEAE. Poppy Family. 



Herbaceous annuals or perennials, with watery or thickened colored Bap; leaves 

 exstipulate, variously pinnatifid or dissected; flowers perfect, regular or irregular; 

 sepals fugacious; petals 4, early deciduous; stamens distinct, hypogynous, with 

 slender filaments; fruit a 1-celled capsule. 



key to the genera. 



Coarse spiny plants; leaves once or twice pinnatifid; 



flowers large, white 1. Argemone (p. 261). 



Slender glabrous plants; leaves usually more dissected; 

 flowers yellow (except in Papaver somnifcrmu , 

 there usually red). 

 Fruit a long slender striate pod splitting length- 

 wise 2. Eschscholzia (p. 262). 



Fruit a globose capsule opening by pores at the 



top 3. Papaver (p. 262). 



^ull. U. S. Nat. Mus. 56: 91. 1907. 



