MANUAL OF THE GRASSES OF THE UNITED STATES 959 



Vilfa cryptandra Torr.; Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 69. 



1840. Based on Agrostis cryptandra Torr. 

 Vilfa triniana Steud. Syn. PL Glum. 1 : 156. 1854. [British] Columbia. 

 Sporobolus cryptandrus vaginatus Lunell, Amer. Midi. Xat. 2: 123. 1911. 



Benson County, X.Dak., Lunell in 1911. 

 Sporobolus cryptandrus var. involutus Farwell, Mich. Acad. Sci. Rept. 22: 179. 



1921. Rochester, Mich., Far well 5393. 

 (13) Sporobolus curtissii (Vasey) Small; Kearney, U.S.Dept.Agr., Div. Agrost. 



Bull. 1: 24. 1895. "S. floridanus curtissii Vasev in Herb." cited; Scribn., 



U.S.Dept.Agr., Div. Agrost. BuU. 7: 142. f. 124. 1897. Based on S. flori- 

 danus var. curtissii Vasey; Beal. 

 Sporobolus floridanus var. curtissii Vasey; Kearney, U.S.Dept.Agr., Div. 



Agrost. Bull. 1: 24. 1895, as svnonvm of S. curtissii; Beal, Grasses N.Amer. 



2: 290. 1S96. Florida, Curfiss. 

 (19) Sporobolus domingensis (Trin.) Kunth, Rev. Gram. 1: Sup. XVII. 1830. 



Based on Vilfa domingensis Trin. 

 Vilfa domingensis Trin., in Spreng., Neu. Entd. 2: 59. 1821. Dominican 



Republic. 

 Agrostis domingensis Schult., Mant. 3 (Add. 1): 570. 1827. Based on Vilfa 



domingensis Trin. 

 Sporobolus inordinatus Mez, Repert. Sp. Nov. Fedde 17: 294. 1921. Cuba, 



Ramon de la Sagra. 

 (21) Sporobolus flexuosus (Thurb.) Rydb., Bull. Torrey Bot. Club 32: 601. 



1905. Based on Sporobolus cryptandrus var. flexuosus Thurb. 

 Vilfa cryptandra var. flexuosa Thurb.; Vasey, in Wheeler Rep. U.S. Survey 100th 



Merid. 6: 282. 1878. Nevada and Arizona, Wheeler Exped. 

 Sporobolus cryptandrus var. flexuosus Thurb., in S. Wats., Bot. Calif. 2: 269. 



1880. Based on Vilfa cryptandra var. flexuosa Thurb. 



(15) Sporobolus floridanus Chapm., Fl. South. U.S. 550. 1860. Middle and 

 west Florida, [Chapman]. 



(24) Sporobolus giganteus Nash, Bull. Torrey Bot. Club 25: 88. 1898. Dona 



Ana County, N.Mex., Wooton 394. 

 Sporobolus cryptandrus var. robustus Vasev, Contrib. U.S. Natl. Herb. 1: 56. 



1890. Texas, Xealley [746]. 

 Sporobolus cryptandrus var. giganteus Jones, Contrib. West. Bot. 14: 11. 1912. 



Based on S. giganteus Nash. 



(16) Sporobolus gracilis (Trin.) Merr., Rhodora 4: 48. 1902. Based on Vilfa 

 gracilis Trin. 



Agrostis juncea Michx., Fl. Bor. Amer. 1: 52. 1803. Not. A. juncea Lam., 



1783. Carolina, Michaux. 

 Heleochloa juncea Beauv., Ess. Agrost. 24, 147. 1812. Based on Agrostis 



juncea Michx. 

 Colpodium junceum Trin., in Spreng., Neu. Entd. 2: 37. 1821. Based on 



Agrostis juncea Michx. 

 Crypsis juncea Steud., Nom. Bot. 1: 242. 1821. Based on Agrostis juncea 



Michx. 

 Vilfa juncea Trin., Gram. Unifl. 157. 1824. Based on Agrostis juncea Michx. 

 Sporobolus junceus Kunth, Rev. Gram. 1: 68. 1829. Based on Agrostis 



juncea Michx. 

 Vilfa schiedeana Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 73. 1840. 



Arkansas, "Schiede." [Type specimen annotated by Ruprecht "Beyrich 



non Schiede."] 

 Vilfa gracilis Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 74. 1840. 



Carolina. 

 Vilfa fulvescens Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 76. 1840. 



North America, Bosc, Willdenow Herb. no. 1750. 

 Agrostis thyrsoides Bosc; Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 76. 



1840, as synonym of Vilfa fulvescens Trin. 

 Vilfa subsetacea Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 133 (in note). 



1840. Based on V. gracilis Trin., op. cit. (page 74, not op. cit. page 104). 



(See synonymy under Muhlenbergia cuspidata.) Discovering that he had 



named two distinct species Vilfa gracilis, Trinius changed the first to V. 



subsetacea. Since V. gracilis has come into use under Sporobolus and is 



valid, it is retained over V. subsetacea, V. schiedeana, and V. fulvescens all of 



the same date. 

 Vilfa vinzenti Steud., Syn. PL Glum. 1: 155. 1854. [Rusk Countv], Tex., 



Vinzent 62. 



55974°- 35 61 



