MANUAL OF THE GRASSES OF THE UNITED STATES 873 



Asprella angustifolia Nutt., Amer. Phil. Soc. Trans, (n.s.) 5: 151. 1837. 



Arkansas, Nuttall. 

 Asprella major Fres.; Steud., Norn. Bot. ed. 2. 1: 152. 1840, as synonym of 



Elymus hystrix L. . 



Hystrix hystrix Millsp., Fl. W.Va. 474. 1892. Based on Elymus hystrix L. 

 Hystrix elymoides Mackenz. and Bush, Man. Fl. Jackson County 39. 1902. 



Based on Elymus hystrix L. 

 Hordeum hystrix Schenck, Bot. Jahrb. Engler 40: 109. 1907. Not H. hystrix 



Roth, 1797. Based on Elymus hystrix L. 

 Gymnostichum patulum Lunell, Amer. Midi. Nat. 4: 228. 1915. Based on 



Hystrix patula Moench. 

 Asperella hystrix var. bigeloviana Fernald, Rhodora 24: 230. 1922. Hanover, 



Conn., Williams in 1910. 

 Hystrix patula var. bigeloviana Deam, Ind. Dept. Conserv. Pub. 82: 117. 1929. 



Based on Asperella hystrix var. bigeloviana Fernald. 



(140) IMPERATA Cyrillo 



(1) Imperata brasiliensis Trim, Mem. Acad. St. PStersb. VI. Math. Phys. Nat. 

 2: 331. 1S32. Brazil. 



Imperata brasiliensis var. mexicana Rupr., Bull. Acad. Sci. Brux. 9 2 : 245. 

 1842. Name only. Mexico, Galeotti 5678. 



Imperata arundinacea var. americana Anderss., Ofv. Svensk. Vet. Akad. Forh. 

 12: 160. 1855. British Guiana, Schomburgk 665; Mexico, Galeotti 5678; 

 Chile, D'Urville. 



This is the species described as Imperata caudata Cyrillo, in Chapm., Fl. South. 

 U.S. ed. 2. 668. 1883. 



Imperata cylindrica (L.) Beauy., Ess. Agrost. 8, 165, 166, 177. pi. 5. f. 1. 1812. 

 Based on Lagurus cylindricus L. 



Lagurus cylindricus L., Syst. Nat. ed. 10. 2: 878. 1759. Europe. 



Saccharum cylindricum Lam., Encycl. 1: 594. 1783. Based on Lagurus cylin- 

 dricus L. 



Imperata arundinacea Cyrillo, PL Rar. Neap. 2: 27. pi. 11. 1788. Italy. 



(2) Imperata hookeri Rupr.; Anderss., Ofv. Svensk. Vet. Akad. Forh. 12: 160. 



1855. Texas, Drummond II. 283. 

 Imperata brevifolia Vasey, Bull. Torrev Bot. Club 13: 26. 1886. Southern Cali- 

 fornia, Parish 1031 [type]; New Mexico, Wright 2001. 



(52) KOELERIA Pers. 



(1) Koeleria cristata (L.) Pers., Syn. PL 1: 97. 1805. "Poa cristata aucto- 



rum", presumably Poa cristata L., used by Willd. (Sp. PL 1: 402. 1797), 



Lamarck (Tabl. Encycl. 1: 182. 1791), and others. 

 Aira cristata L., Sp. PL 63. 1753. Europe. 



Poa cristata L., Syst. Nat. ed. 12. 94. 1767. Based on Aira cristata L. 

 Festuca cristata VilL, Hist. PL Dauph. 1: 250. 1786. Not F. cristata L., 1753. 



Based on Aira cristata L. 

 Koeleria gracilis Pers., Syn. PL 1: 97. 1805. Europe. 

 Koeleria nitida Nutt., Gen. PL 1: 74. 1818. Plains of the Missouri. 

 Aira gracilis Trim, Fund. Agrost. 144. 1820. Based on Koeleria gracilis Pers. 

 Airochloa cristata Link, Hort. Berol. 1: 127. 1827. Based on Aira cristata L. 



The specific name was misspelled "aristata" in Link, Handb. Gewachs. 1: 64. 



1829. 

 Airochloa gracilis Link, Hort. Berol. 2: 276. 1827. Based on Koeleria gracilis 



Pers. 

 Koeleria cristata var. nuttali Wood, Class-book ed. 2. 613. 1847. Presumably 



based on K. nitida Nutt. 

 Koeleria cristata var. gracilis A. Gray, Man. 591. 1848. No definite locality 



cited. Presumably based on K. gracilis Pers. 

 Brachy stylus cristatus Dulac, Fl. Haut. Pyr. 85. 1867. Based on Koeleria 



cristata Pers. 

 Koeleria nitida var. arkansana Scribn., Kans. Acad. Sci. Trans. 9: 118. 1885. 



[Arkansas.] 

 Koeleria arkansana Nutt.; Scribn., Kans. Acad. Sci. Trans. 9: 118. 1885. 



[Arkansas, Nuttall], as synonym of K. nitida var. arkansana. 

 Achaeta geniculata Fourn., Mex. PL 2: 109. 1886. Mexico, Liebmann 609. 

 Koeleria cristata var. major Vasey in Macoun, Cat. Can. Pi. 2 4 : 218. 1888. 



Not K. cristata var. major Koch, 1837. Name only, for Macoun, Vancouver 



Island. 



