990 MISC. PUBLICATION 4 2 3, U. S. DEPT. OF AGRICULTURE 



in the typical form), has been collected below Black Falls, Little 

 Colorado River (eastern Coconino County), and occurs also in 

 Maricopa, Pinal, and Pima Counties. The type of G. pringlei (Pringle 

 in 1884) and the type of G. crinita (Griffiths 2386) both came from 

 near Tucson. 



3. Gaillardia parryi Greene, Torrey Bot. Club Bui. 24: 512. 1897. 



Gaillardia acaulis A. Gray, Amer. Acad. Arts and Sci. Proc. 10: 

 73. 1874. Not Pursh, 1814. 



Kaibab Plateau, Coconino (?) County (Jones in 1890), above 

 Pagumpa Springs and north of Wolf Hole, northern Mohave County, 

 about 5,000 feet (Jones 5059ak, Peebles 14735), plains and hillsides, 

 May and June. Southern Utah and northern Arizona. 



4. Gaillardia pinnatifida Torr., Ann. Lye. N. Y. 2: 214. 1828, as 



Galardia. 



Gaillardia multiceps Greene, Torrey Bot. Club Bui. 24: 512. 



1897. 

 Gaillardia mearnsii Rydb., Torrey Bot. Club Bui. 37: 443. 



1910. 

 Gaillardia linearis Rydb., North Amer. Fl. 34: 137. 1915. 

 Gaillardia crassa Rydb., ibid. p. 138. 

 Gaillardia globosa A. Nels., Wyo. Univ. Pub. Bot. 1: 135. 



1926. 



Navajo, Coconino, and eastern Mohave Counties, south to Cochise. 

 Santa Cruz, and Pima Counties, 3,500 to 7,000 feet, mesas, plains, 

 and open pine forest, often on limestone, May to October, type of 

 G. multiceps from south of Woodruff, type of G. mearnsii from Fort 

 Verde (Mearns 322), type of G. crassa from foothills of the Santa 

 Rita Mountains (Pringle in 1884), type of G. globosa from near Flag- 

 staff (MacDougal 291). Colorado and Utah to Texas, Arizona, 

 and Mexico. 



This species is reported to be used by the Hopi Indians as a diuretic. 

 G. linearis and G. multiceps are forms with narrow entire leaves. 

 G. mearnsii apparently was based on plants flowering in their first year. 



101. PLUMMERA 



Perennial (?) herbs, with aspect of Actinea richardsoni but taller; 

 leaves alternate, divided into filiform lobes; heads very small, cymose- 

 panicled, radiate, yellow, the rays 2 to 5, fertile, the disk flowers 

 6 or 7, hermaphrodite but sterile; involucre double; ray achenes 

 obovoid, plump, about 15-ribbed, villous; pappus none, or of 4 to 6 

 oblong squamellae. 



Key to the species 



1. Achenes epappose, villous with flexuous hairs 1. P. floribunda. 



1. Achenes with a pappus of 4 to 6 oblong to lanceolate squamellae, villous with 

 straight hairs 2. P. ambigens. 



1. Plummera floribunda A. Gray, Amer. Acad. Arts and Sci. Proc. 17: 

 215. 1882. 

 Chiricahua, Dos Cabezas, and Mule Mountains (Cochise County), 

 5,000 to 6,500 feet, September, type from Apache Pass (Lemmon in 

 1881). Known only from southeastern Arizona. 



