MANUAL OF THE GRASSES OF THE UNITED STATES 



823 



1817. Not A. stricta Michx., 1803. 



Georgia. 

 Aristida squarrosa Trin. in Spreng., Neu. 



Entd. 2: 62. 1821. North America. 

 Chaetaria squarrosa Schult., Mantissa 3 



(Add. 1 ) : 577. 1827. Based on Aristida 



squarrosa Trin. 

 (30) Aristida stricta Michx., Fl. Bor. Amer. 



1: 41. 1803. South Carolina, Michaux. 

 Chaetaria stricta Beauv., Ess. Agrost. 30, 



152, 158. 1812. Based on Aristida 



stricta Michx. 

 Aristida beyrichiana Trin. and Rupr. 



Acad. St. Petersb. Mem. VI. Sci. Nat. 



5 1 : 104. 1842. Georgia and Arkansas, 



Beyrich. 

 (38) Aristida tenuispica Hitchc, U. S. Natl. 



Herb. Contrib. 22: 581. 1924. Hills- 



boro, Fla., Combs 1384. 

 (5) Aristida ternipes Cav., Icon. PI. 5: 48. 



1799. Panama, Nee. 

 Streptachne scabra H. B. K., Nov. Gen. et 



Sp. 1 : 124. pi. 40. 1815. Near Toluca, 



Mex., Humboldt and Bonpland. 

 Streptachne tenuis H. B. K., Nov. Gen. et 



Sp. 1 : 124. 1815. Venezuela, Humboldt 



and Bonpland. 

 Aristida scabra Kunth, Rev. Gram. 1 : 62. 



1829. Based on Streptachne scabra 



H. B. K. 

 Aristida tenuis Kunth, Rev. Gram. 1 : 62. 



1829. Based on Streptachne tenuis 



H. B. K. 

 Stipa tenuis Wilid. ex Steud., Nom. Bot. 



ed. 2. 2: 643. 1841, as synonym of 



Aristida tenuis. 

 Muhlenbergia scabra Trin. and Rupr., 



Acad. St. Petersb. Mem. VI. Sci. Nat. 



5 1 : 183. 1842. Based on Aristida scabra 



Kunth. 

 Streptachne cubensis A. Rich, in Sagra, 



Hist. Cuba 11: 311. 1850. Cuba, 



Sagra. 

 Oriachne scabra Fourn., Soc. Bot. France 



Bui. 27: 295. 1880. Based on Strep- 

 tachne scabra H. B. K. 

 Ortachne tenuis Fourn., Soc. Bot. France 



Bui. 27: 295. 1880. Based on Strep- 

 tachne tenuis H. B. K. 

 Aristida ternipes var. minor (Vasey) 



Hitchc, Wash. Acad. Sci. Jour. 23: 453. 



1933. Based on A. schiedeana var. minor 



Vasey. 

 Aristida schiedeana var. minor Vasey, 



Torrey Bot. Club Bui. 13: 28. 1886. 



Arizona, Pringle [type]; Bowie, Jones. 

 Aristida divergens Vasey, U. S. Natl. 



Herb. Contrib. 3: 48. 1892. Based on 



A. schiedeana var. minor Vasey. 

 Aristida ternipes divergens Hitchc, U. S. 



Natl. Herb. Contrib. 22: 525. 1924. 



Based on A. divergens Vasey. 

 (2) Aristida tuberculosa Nutt., Gen. PL 1 : 



57. 1818. Near Augusta, Ga. 

 Chaetaria tuberculosa Schult., Mantissa 



2: 211. 1824. Based on Aristida tuber- 

 culosa Nutt. 



(35) Aristida virgata Trin. in Spreng., Neu. 



Entd. 2: 60. 1821. North America 



[Philadelphia, Pa.]. 

 Aristida stricta Steud., Nom. Bot. ed. 2. 



1: 132. 1840. Not A. stricta Michx., 



1803. As synonym of A. virgata Trin. 

 Aristida perennis Panz. in Trin. and 



Rupr., Acad. St. Petersb. M6m. VI. Sci. 



Nat. 5 1 : 104. 1842. South Carolina. 



(Fide Henrard, Med. Rijks Herb. 



Leiden 54A: 439. 1927. (Critical 



Revis. Aristida.) 

 Aristida gracilis var. virgata, Wood, Amer. 



Bot. and Flor. pt. 2: 389. 1871. Pre- 

 sumably based on A. virgata Trin. 

 Aristida purpurascens var. depauperata 



Vasey ex Beal, Grasses N. Amer. 2: 201. 



1896 [Ocean Springs], Miss., Tracy 



[107]. 

 Aristida chapmaniana Nash in Small, Fl. 



Southeast. U. S. 118, 1327. 1903. 



Apalachicola, Fla., Chapman. 

 (25) Aristida wrightii Nash in Small, pi 



Southeast. U. S. 116. 1903. Dan as ' ; 



Tex., Reverchon 1061. 



(63) ARRHENATHERUM Beauv. 



(1) Arrhenatherum elatius (L.) Presl, Fl. 



Cech. 17. 1819. Based on Avena 



elatior L. 

 Avena elatior L., Sp. PL 79. 1753. 



Europe. 

 Holcus avenaceus Scop., FL Cam. ed. 2. 



2 : 276. 1772. Based on Avena elatior L. 

 Avena elata Salisb., Prodr. Stirp. 23. 



1796. Not A. elata Forsk., 1775. Based 



on A. elatior L. 

 Arrhenaiherum avenaceum Beauv., Ess. 



Agrost. 55, 152, 164. pi. 11. f. 5. 1812. 



Based on Holcus avenaceus Scop. 

 Arrhenaiherum americanum Beauv., Ess. 



Agrost. 56, 152, 1812. Name only. 

 Hordeum avenaceum Wigg. ex Beauv., 



Ess. Agrost. 165. 1812. Name only, 



referred to Arrhenaiherum; Steud, Nom. 



Bot. 413. 1821, as synonym of Holcus 



avenaceus Scop. 

 Arrhenatherum elatius var. biaristatum 



(Peterm.) Peterm., Flora 27: 229. 



1844. Based on A. biaristatum Peterm. 

 Arrhenatherum biaristatum Peterm., FL 



Lips. 106. 1838. Germany. 

 Arrhenatherum elatius var. bulbosum 



(Willd.) Spenner, Fl. Friburg. 1: 113. 



1825. Based on Avena bulbosa Willd. 

 Avena tuberosa Gilib., Exerc Phyt. 2: 538. 



1792. France. 

 Avena bulbosa Willd., Ges. Naturf. 



Freund. Berlin Neue Schrift. 2: 116. 



1799. Switzerland. 

 Holcus btdbosus Schrad., FL Germ. 1: 248. 



1806. Based on Avena bulbosa Willd. 

 Holcus avenaceus var. bulbosus Gaudin, 



Agrost. Helv. 1: 136. 1811. Based on 



H. bulbosus Schrad. 

 Avena elatior var. bulbosa St. Amans, Fl. 



