MANUAL OF THE GRASSES OF THE UNITED STATES 949 



Chaetochloa viridis Scribn., U.S.Dept.Agr., Div. Agrost. Bull. 4: 39. 1897 

 Based on Panicum viride L. 



Setaria viridis var. breviseta Hitchc, Rhodora 8: 210. 1906. Based on Pani- 

 cum viride var. brevisetum Doell. 



Setaria italica subsp. viridis Thell., Mem. Soc. Sci. Nat. Cherbourg 38: 85. 

 1912. Based on Panicum viride L. 



Chaetochloa viridis var. breviseta Farwell, Mich. Acad. Sci. Papers 1: 86. 1921. 

 Based on Panicum viride var. brevisetum Doell. 



Chaetochloa viridis var. weinmanni House, N.Y. State Mus. Bull. 243-244: 39- 

 1923. Based on Setaria weinmanni Roem. and Schult. 



Chaetochloa viridis var. major (Gaudin) Farwell, Mich. Acad. Sci. Papers 1: 

 86. 1921, and C. viridis var. minor (Koch) Farwell (I.e.) are based on Euro- 

 pean types I have not examined. 



(44) SITANION Raf. 



(1) Sitanion hanseni (Scribn.) J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 

 20. 1899. Based on Elymus hanseni Scribn. 

 Elymus hanseni Scribn., U.S.Dept.Agr., Div. Agrost. Bull. 11: 56. f. 12. 



1898. Amador County, Calif., Hansen 1742. 



Sitanion planifolium J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 19. 



1899. Skamania County, Wash., Suksdorf 224. 



Sitanion anomalum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 20. 



pi. 4. 1899. Pasadena, Calif., Allen in 1885. 

 Sitanion leckenbyi Piper, Erythea 7: 100. 1899. Wawawai, Wash., Piper 



3003. 

 Sitanion rubescens Piper, Bull. Torrey Bot. Club. 30: 234. 1903. Mount 



Rainier, Wash., Piper 1954. 

 Elymus leckenbyi Piper, Contrib. U.S. Natl. Herb. 11: 151. 1906. Based on 



Sitanion leckenbyi Piper. 

 Sitanion hanseni anomalum Hitchc, Biol. Soc. W^ash. Proc. 41: 160. 1928. 



Based on S. anomalum J. G. Smith. 

 (3) Sitanion hystrix (Nutt.) J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 



15. pi. 2. 1899. Based on Aegilops hystrix Nutt. 

 Aegilops hystrix Nutt., Gen. PI. 1: 86. 1818. Plains of the Missouri. 

 Sitanion elymoides Raf., Jour. Phys. Chym. 89: 103. 1819. Missouri [River]. 

 Elymus sitanion Schult., Mant. 2: 426. 1824. Based on Sitanion elymoides 



Raf. 

 Polyanthrix hystrix Nees, Ann. Nat. Hist. 1: 284. 1838. Based on Aegilops 



hystrix Nutt., but misapplied to S. jubatum. 

 Elymus elymoides Swezey, Nebr. PI. Doane Coll. 15. 1891. Based on 



Sitanion elymoides Raf. 

 Sitanion minus J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 12. 1899. 



Jacumba Hot Springs, Calif., Schoenefeldt 3277. 

 Sitanion rigidum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 13. 



1899. Cascade Mountains, Wash., Allen 178. 

 Sitanion californicum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 13. 



1899. San Bernardino Mountains, Calif., Parish 3295. 

 Sitanion glabrum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 14. 1899. 



Coso Mountains, Calif., Coville and Funston 914. 

 Sitanion cinereum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 14. 



1899. Reno, Nev., Tracy 222. 

 Sitanion insulare J '. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 14. 1899. 



Carrington Island, Salt Lake, Utah, Watson 1338. 

 Chretomeris trichoides Nutt.; J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 



15. 1899, as synonym of Sitanion hystrix. 

 Elymus difformis Nutt.; J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 15. 



1899, as synonym of Sitanion hystrix. 

 Sitanion montanum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 16. 



1899. Spanish Creek, Mont., Rydberg 3091. 

 Sitanion caespitosum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 16. 



1899. Cliff, N.Mex., J. G. Smith in 1897. 

 Sitanion strigosum J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 17. 



1899. Sheep Creek, Mont., Rydberg 3298. 

 Sitanion molle J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 17. 1899. 



Larimer County, Colo., Shear and Bessey 1469. 

 Sitanion brevifolium J. G. Smith, U.S.Dept.Agr., Div. Agrost. Bull. 18: 17. 



1899. Tucson, Ariz., Tourney 797. 



