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MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



SYNONYMY 



The following names have appeared 

 in botanical literature as applied to 

 grasses growing in the United States. 

 For grasses introduced into the 

 United States from other countries 

 there are here given only the names 

 appearing in American works. No 

 attempt has been made to present 

 the complex synonymy for these 

 introduced grasses given in foreign 

 works. The synonymy for the generic 

 names will be found in The Genera 

 of Grasses of the United States. 

 Genera not included in this work 

 nor in Manual, ed. 1, and a few 

 changes in generic names will be 

 found in the Appendix, page 1001. 



For quick reference the names of 

 genera and valid species are arranged 

 in alphabetic order, the names in 

 blackface type. The synonyms, in 

 italics, are arranged chronologically 

 under the -names to which they are 

 referred. The numbers in parentheses 

 are the numbers these genera and 

 species bear in the body of this work. 



(44) AEGILOPS L. 



(1) Aegilops cylindrica Host, Icon. Gram. 

 Austr. 2: 6. pi. 7. 1802. Southern 

 Europe. 



Triticum cylindricum Ces., Pass, and Gib., 

 Comp. Fl. Ital. 86. 1867. Presum- 

 ably based on Aegilops cylindrica Host. 

 (3) Aegilops ovata L., Sp. PI. 1050. 1753. 

 Southern Europe. 



Triticum ovatum Raspail, Ann. Sci. Nat., 

 Bot. 5: 435. 1825. Based on A. ovata L. 



(2) Aegilops triuncialis L., Sp. PL 1051. 



1753. Mediterranean region. 

 Triticum triunciale Raspail, Ann. Sci. Nat. 

 Bot. 5: 435. 1825. Based on A. tri- 

 uncialis L. 



(96) AEGOPOGON Humb. and Bonpl. 

 ex Willd. 



(1) Aegopogon tenellus (DC.) Trim, Gram. 

 Unifl. 164. 1824. Based on Lamarckia 

 tenella DC, though Trinius cites not 

 that but A. pusillus Beauv., in Roem. 

 and Schult., Syst. Veg. 2: 805. 1817. 

 Roemer and Schultes cite L. tenella 

 DC, obviously the basis of Trinius' 

 name, as synonym of A. pusillus 

 Beauv., which, however, is the same as 

 A. cenchroides Humb. and Bonpl. (not 

 known from the U. S.). 



Lamarckia tenella DC, Cat. Hort. Monsp. 

 120. 1813. Grown in Montpellier, or- 

 igin unknown, probably Mexico. 



Cynosurus tenellus Cav. ex DC, Cat. 

 Hort. Monsp. 120. 1813, as synonym 

 of Lamarckia tenella DC. 



Hymenothecium unisetum Lag., Gen. and 

 Sp. Nov. 4. 1816. Grown from Mexi- 

 can seed sent by Sesse. 



Hymenothecium tenellum Lag., Gen. and 

 Sp. Nov. 4. 1816. Based on Cyno- 

 surus tenellus Cav. 



Aegopogon unisetus Roem. and Schult., 

 Syst, Veg. 2: 805. 1817. Based on 

 Hymenothecium unisetum Lag. 



Schellingia tenera Steud., Flora 33: 232. 

 1850. Mexico, Galeotti 5750. 



Aegopogon geminiflorus var. unisetus 

 Fourn., Mex. PI. 2: 71. 1886. Based 

 on A. unisetus Roem. and Schult. 



Chloris pedicellata Steud. ex Fourn., Mex. 

 PL 2: 71. 1886, as synonym of A. 

 geminiflorus H. B. K. Misapplied by 

 Fournier. 



Aegopogon geminiflorus var. abortivus 

 Fourn. Mex. PL 2: 71. 1886. Bour- 

 geau 750 bis and Schaffner 7, both in 

 the Paris Herbarium and cited by 

 Fournier have been examined. Both are 

 short-awned specimens of A. tenellus. 



Aegopogon tenellus var. abortivus Beetle, 

 Wyo. Univ. Pub. 13 2 : 18. 1948. Based 

 on A. geminiflorus var. abortivus Fourn. 



(42) AGROPYRON Gaertn. 

 (9) Agropyron albicans Scribn. and Smith, 

 U. S. Dept. Agr., Div. Agrost. Bui. 4: 

 32. 1897. Yogo Gulch, Mont., Ryd- 

 berg 3405. 

 (20) Agropyron arizonicum Scribn. and 

 Smith, U. S. Dept. Agr., Div. Agrost. 

 Bui. 4: 27. 1897. New Mexico, Ari- 

 zona [type, Rincon Mountains, Nealley 

 67], and Chihuahua, Mexico. 

 Agropyron caninum var. majus Scribn., 

 Torrey Bot, Club Bui. 10: 32. 1883. 

 Santa Rita Mountains, Ariz., Pringle. 

 Agropyron spicatum var. arizonicum 

 Jones, West, Bot. Contrib. 14: 19. 

 1912. Based on A. arizonicum Scribn. 

 and Smith. 

 Elymus arizonicus Gould, Madrono 9: 

 125. 1947. Based on Agropyron arizoni- 

 cum Scribn. and Smith. 

 (15) Agropyron bakeri E. Nels., Bot. Gaz. 

 38: 378. 1904. Pagosa Peak, Colo., 

 Baker 139. > 

 Agropyron caninum (L.) Beauv., Ess. 

 Agrost. 102, 146. 1812. Based on Trit- 

 icum caninum L. 

 Triticum caninum L., Sp. PL 86. 1753. 



Europe. 

 Elymus caninus L., Fl. Suec. ed. 2. 39. 

 1755. Based on Triticum caninum L. 

 Zeia canina Lunell, Amer. Midi. Nat. 4: 

 226. 1915. Based on Triticum cani- 

 num L. 



