FLOWERING PLANTS AXD FERNS OF ARIZONA 851 



3. Galium brandegei A. Gray, Anier. Acad. Arte and Sci. Proc. 12: 



58. 1S76. 

 Given for Arizona by K. Wiegand (Torrey Bot. Club Bui. 24: 398. 

 1897), but no specimens are cited. A collection on the Kaibab Pla- 

 teau, Coconino County (Grand Canyon Herb. 994) may belong here. 

 Wyoming to New Mexico and southern California. 



4. Galium trifidum L., Sp. PL 105. 1753. 



Willow Spring, southern Apache County (Palmer 514), Prescott, 

 Yavapai County (McLeHan and Stitt 1347), apparently very rare in 

 Arizona. Labrador to Alaska, south to New York, Colorado, Arizona. 



and southern California. 



5. Galium wrightii A. Gray, PL Wright. 1: 80. 1S52. 



Apache County to Coconino County, south to Cochise, Santa 

 Cruz, and Pima Counties, 3.500 to 8.500 feet, June to September. 

 Western Texas to Arizona and northern Mexico. 



6. Galium rothrockii A. Grav, Amer. Acad. Arts and Sci. Proc. 17: 



203. 1882. 



Coconino County (both sides of the Grand Canyon) to Cochise, 

 Santa Cruz, and Pima Counties, 3.000 to 8.000 feet, rocky slopes, 

 canyons, etc., common, July to September, type from Camp Critten- 

 den, Santa Cruz County (Roikrock 675). Southern New Mexico to 

 southeastern California and Mexico. 



Intergrades or hybridizes with the nearly related G. wrightii, 



7. Galium fendleri A. Grav, Amer. Acad. Arts and Sci. Mem. ser. 2. 



4: 60. 1849. 

 Greenlee, Graham, and Cochise Counties, 8,000 to 9.500 feet, 

 coniferous forests, July and August. New Mexico and southeastern 

 Arizona. 



8. Galium stellatum Kellogg, Calif. Acad. Sci. Proc, 2: 97. 1863. 

 Mohave, Yavapai, Gila, Pinal, Pima, and Yuma Counties, 3.000 



feet or lower, dry rocky slopes, common, January to May. Southern 

 Utah and Nevada, central and western Arizona, southern California, 

 and Baja California. 



The species is represented hi Arizona by var. eremicum Hilend and 

 HoweU. 



9. Galium watsoni (A. Grav) Heller, Torrey But. Club Bui. 25: 627. 



1898. 



Galium muUiflorurn Kellogs- var. watsoni A. Grav. Syn. PL 

 ed. 2. 1 2 : 40. 1886. 



Both sides of the Grand Canyon (Coconino County), apparently 

 common. 5.000 to 7.000 feet, also (?) Fossil Creek, Gila County 

 (Cottom 596), crevices of rocks on dry slopes. May to July. Idaho 

 and Oregon to northern Arizona. 



Mrs. Collom's specimen, and specimens collected on the north wall 

 of the Grand Canyon (Eastwood and Howell 1008. 1008A\ seem to 

 approach G. munzii Hilend and Howell in their rough-hirsute or hispid 

 pubescence. 



