1922] 



PA YSON— STUDY OF THELYPODIUM AND ITS IMMEDIATE ALLIES 311 



Gard 



Herb.); Naturita, May 15, 1914, Payson 301 (Mo. Bot 

 Herb.). 



New Mexico: Aztec, April, 1899, Baker 862 (Mo. Bot. Gard. 

 Herb.). 



Utah: Diamond Valley, May 19, 1902, Goodding 879 (Mo. Bot. 

 Gard. Herb.) ; Green River, May 9, 1890, Jones (Mo. Bot. Gard. 

 Herb.); near St. George, 1874, Parry 9 (Mo. Bot. Gard. Herb.). 



Arizona: mesa, Yuma, 1.911, Beard (Mo. Bot. Gard. Herb.). 



Nevada: desert near Goshoot Mountains, May 8, 1859, H. 

 Engelmann (Mo. Bot. Gard. Herb.); Lincoln County,' 1880, Da- 

 vis 46 (Mo. Bot. Gard. Herb.) ; Moapa, April 8, 1905, Goodding 

 2210 (Mo. Bot. Gard. Herb.); Las Vegas, May 8, 1905, Good- 

 ding 2324 (Mo. Bot. Gard. Herb.) ; Winnemucca Lake, June 3 

 1913, Kennedy 1999 (Mo. Bot. Gard. Herb.); Truckee River 

 sands, Wadsworth, June 6, 1913, Kennedy 2035 (Mo. Bot. Gard. 



Herb 



Ore 



Herb. 



Umatilla, May 1, 1882, Howell (Mo. Bot. Gard 



California: near Laws, May 5, 1906, Heller 8183 (Mo. Bot 

 Gard. Herb.) ; Darwin, April 28, 1897, Jones (Mo. Bot. Gard 

 Herb.); Lancaster, June, 1902, Elmer 3625 (Mo. Bot. Gard 

 Herb.). 



WAREA 



Warea Nutt. Jour. Acad. Phila. 7: 83. 1834; Torr. & Gray 

 Fl. N. Am. 1: 98. 1838; Gray, Gen. Am. Bor.-Or. 111. 1: 155! 

 1848; Benth. & Hook. Gen. PI. 1: 80. 1862; Prantl in Engler 

 & Prantl, Nat. Pflanzenfam. Ill, Abt. 2: 155. 1891; Robinson 

 m Gray, Syn. El. N. Am. I 1 : 179. 1895; Small, Fl. Southeas- 

 tern U. S. 487. 1903, and ed. 2, 487. 1913; Hayek, Beih. Bot. 

 Centralbl. 27 1 : 180. 1911. 



Erect, annual, glabrous herbs with slender, branching stems. 

 Leaves entire, amplexicaul, sessile or cuneate at the base, all 

 similar and none rosulate at the base of the stem. Flowers red- 

 dish purple to white, clavate in the bud; sepals equal, broadly 

 linear or spatulate, not saccate, widely spreading or reflexed in 

 an thesis; petals unguiculate, claw slender, blade dilated; stamens 

 nearly equal, filaments linear, exserted, anthers revolute when 



contracted and 



dry; ovary long-stipitate. 



corymbiform, little elongated in fruit; pedicels slender, "in age 

 deciduous at the base from the axis of the inflorescence. Pods 

 somewhat compressed parallel to the partition, linear falcate 



