WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 727 
2. Flaveria repanda Lag. Gen. & Sp. Nov. 33. 1816. 
Type Locauity: ‘‘Nova Hispania.”’ 
RanGeE: Texas and New Mexico, south to tropical America. 
New Mexico: Pajarito Park; Las Vegas; Mesilla Valley; above Tularosa; south of 
Roswell; Lake Arthur; Carlsbad; Guadalupe Mountains. Valleys, especially in cul- 
tivated ground, in the Lower and Upper Sonoran zones. 
A common weed in cultivated fields of the Rio Grande and Pecos valleys. 
8. Flaveria campestris J. R. Johnston, Proc. Amer. Acad. 39: 287. 1903. 
Tyre LOCALITY: Courtney, Missouri. (No type is designated, but the first specimen 
cited is from this locality.) 
RaNnGE: Missouri and Kansas to Colorado and eastern New Mexico. 
New Mexico: Roswell (Cockerell). 
112. SARTWELLIA A. Gray. 
Branched annual, 30 to 60 cm. high, with entire opposite linear leaves and numerous 
small heads of yellow flowers in corymbiform cymes; bracts 5, oval or oblong; rays 
mostly entire, obovate; achenes cylindric, striate; pappus a cup with fimbriolate 
edge. 
1. Sartwellia flaveriae A. Gray, Pl. Wright. 1: 122. pl. 6. 1852. 
Tyre Locauity: ‘Prairies of the Rio Seco, Texas, and mountain valleys and plains 
of the Pecos, and base of the Guadalupe Mountains.” 
Rance: Western Texas to southeastern New Mexico. 
New Mexico: White Sands; White Mountains; Roswell; Lake Arthur; Buchanan; 
mesa west of Organ Mountains. Plains and rocky hills, in the Upper Sonoran Zone. 
113. MACDOUGALIA Heller. 
Loosely woolly, cespitose perennial with mostly basal linear leaves and scapelike 
monocephalous stems; involucre hemispheric, the bracts lanceolate, acute, coriaceous, 
about 12 in each series, distinct, those of the inner series slightly longer and scarious- 
margined; rays about 12, yellow; pales of the pappus about 10, subulate-lanceolate, 
with evident cost, attenuate into a bristle-like cusp. 
1. Macdougalia bigelovii (A. Gray) Heller, Bull. Torrey Club 25: 629. 1898. 
Actinella bigelovii A. Gray, Pl. Wright. 2: 96. 1853. 
Type Locauity: Mountains near the Copper Mines, New Mexico. Type collected 
by Bigelow. 
Rance: Mountains of New Mexico and Arizona. 
New Mexico: Santa Rita; Agua Fria. 
114. HYMENOXYS Cass. CoLORADO RUBBER PLANT, 
Herbaceous perennials or annuals with gland-dotted alternate divided leaves and 
few or numerous showy pedunculate heads; involucre of 2 series of bracts, the outer 
ones thick, united at the base, the inner ones thinner and broader, often with fimbri- 
ate margins; ray flowers pistillate or the heads homogamous; rays pale to bright yel- 
low; achenes turbinate, pubescent; pappus of 5 to 12 conspicuous hyaline pointed 
paleze. 
KEY TO THE SPECIES. 
Annuals with often spreading branches; inner bracts not very dil- 
ferent from the outer; disk corollas distinctly expanded at the 
mouth. 
Plants tall, 30 to 50 em. high; heads about 8 mm. in diameter.. 1. H. cockerellit. 
Plants low, 20 cm. high or less, more branched; heads less than 
8 mm. in diameter. 
