894 MISC. PUBLICATION 200, IT. S. DEPT. OF AGRICULTURE 



Sporobolus richardsonii Merr., Rhodora 4: 46. 1902. Based on Vilfa richara- 



sonis Trin. - 

 Muhlenbergia richardsonis Rydb., Bull. Torrey Bot. Club 32: 600. 1905. 



Based on Vilfa richardsonis Trin. 

 Muhlenbergia brevifolia var. richardsonis Jones, Contrib. West. Bot. 14: 12. 



1912. Based on Vilfa richardsonis Trin. 

 This is the species which Nash (Britton, Man. 105. 1901) called Sporobolus 

 brevifolius, but that name is based on Agrostis brevifolius Nutt., which is Muhlen- 

 bergia cuspidata (which see). 



(28) Muhlenbergia sylvatica Torr.; Trin., Mem. Acad. St. Petersb. VI. Sci. Nat. 

 4 1 : 292. 1841. Based on Agrostis sylvatica Torr. 

 Agrostis diffusa Muhl., Descr. Gram. 64. 1817. Not A. diffusa Host, 1809. 



Pennsylvania. 

 Agrostis sylvatica Torr., Fl. North, and Mid. U.S. 1: 87. 1823. Not A. 



sylvatica L., 1762. Mountains of New Jersey. 

 Muhlenbergia sylvatica var. gracilis Scribn., Kans. Acad. Sci. Trans. 9: 116. 



1885. Topeka, Kans., Popenoe. 

 Muhlenbergia umbrosa Scribn., Rhodora 9: 20. 1907. Based on Agrostis 



sylvatica Torr. 

 Muhlenbergia umbrosa attenuata Scribn., Rhodora 9: 21. 1907. Aurora 



County, S.Dak., Wilcox 25. 

 Muhlenbergia diffusa Farwell, Mich. Acad. Sci. Rept. 20: 168. 1919. Not 



M. diffusa Willd., 1797. Based on Agrostis diffusa Muhl. 

 Muhlenbergia umbrosa forma attenuata Deam, Ind. Dept. Conserv. Pub. 82: 

 171. 1929. Based on M. umbrosa attenuata Scribn. 

 (23) Muhlenbergia tenuiflora (Willd.) B.S.P., Prel. Cat. N.Y. 67. 1888. 

 Based on Agrostis tenuiflora Willd. 

 Agrostis tenuiflora Willd., Sp. PI. 1: 364. 1797. North America. 

 Apera tenuiflora Beauv., Ess. Agrost. 151. 1812. Based on Agrostis tenuiflora 



Willd. 

 Trichochloa longiseta Trin., Fund. Agrost. 117. 1820. Based on Agrostis 

 tenuiflora Willd. Erroneously given as T. longiflora Trin., in Kunth, Enum. 

 PL 1: 601. 1833. 

 Cinna tenuiflora Link, Enum. PL 1: 71. 1821. Based on Agrostis tenuiflora 



Willd. 

 Muhlenbergia willdenowii Trin., Gram. Unifl. 188. pi. 5. f. 3. 1824. Based 



on Agrostis tenuiflora Willd. 

 Trichochloa tenuiflora Sweet, Hort. Brit. 443. 1826. Based on Agrostis 



tcTtwifloT a Willd. 

 Podosaemum tenuiflorum Link, Hort. Berol. 1: 82. 1827. Based on Agrostis 



tcTiwiiloT & ^Villcl. 

 Muhlenbergia tenuiflora variabilis Scribn., Rhodora 9: 18. 1907. Chimney 

 Mountain, N.C., Biltmore Herbarium 654a. 

 (1) Muhlenbergia texana BuckL, Acad. Nat. Sci. Phila. Proc. 1862: 91. 1863. 

 Northern Texas. 

 Agrostis barbata BuckL; A. Gray, Acad. Nat. Sci. Phila. Proc. 1862: 334. 1863. 



Not A. barbata Pers., 1805. As synonym of Muhlenbergia texana BuckL 

 Muhlenbergia buckleyana Scribn., Contrib. U.S. Natl. Herb. 1: 56. 1890. 



Based on M. texana BuckL 

 Podosaemum texanum Bush, Amer. Midi. Nat. 7: 41. 1921. Based on 

 Muhlenbergia texana BuckL 

 (8) Muhlenbergia thurberi Rydb., Bull. Torrey Bot. Club 32: 601. 1905. 

 Based on Sporobolus filiculmis Vasey; Beal. Vilfa filiculmis Thurb., also 

 cited, is a name only, and no reference is made. to Sporobolus thurberi Scribn. 

 Sporobolus filiculmis Vasey, Descr. Cat. Grasses U.S. 44. 1885, name only; 

 Vasey: Beal, Grasses N. Amer. 2: 288. 1896. Not S. filiculmis L. H. Dewey, 

 1894. ' New Mexico, Whipple Exped. [Plaza Larga, Bigelow 778]. 

 Vilfa filiculmis Thurb.; Vasey, Descr. Cat. Grasses U.S. 44. 1885, as synonym 



of Sporobolus filiculmis Vasey. 

 Sporobolus thurberi Scribn., U.S.Dept.Agr., Div. Agrost. Bull. 11: 48. f. 5. 1898. 



" Vilfa filiculmis Thurb." Plaza Larga, N.Mex., Bigelow. 

 Vilfa filiculmis Thurb.; Scribn., U.S.Dept.Agr., Div. Agrost. Bull. 11: 48. 



1898, as synonym of Sporobolus thurberi Scribn. 

 Muhlenbergia filiculmis Jones, Contrib. West. Bot. 14: 12. 1912. Not M. 



filiculmis Vasey, 1893. Based on Vilfa filiculmis Thurb., name only. 

 Muhlenbergia curtifolia grijfithsii Scribn., Bull. Torrey Bot. Club 38: 328. 1911. 

 De Chelly Canyon, Ariz., Griffiths 5837. 



