MANUAL OF THE GRASSES OF THE UNITED STATES 



961 



Petersb. Mem. VI. Math. Phys. Nat. 



1: 66. 1830. Not T. pennsylvanicum 



Beauv. Based on Aira pennsylvanica 



Spreng. 

 Glyceria pennsylvanica Heynh., Nom. 1: 



361. 1840. Based on Air a pennsyl- 

 vanica Spreng. 

 Reboulea pennsylvanica A. Gray, Man. 



591. 1848. Based on Koeleria pennsyl- 

 vanica DC. 

 Eatonia pennsylvanica A. Gray, Man. ed. 



2. 558. 1856. Based on Koeleria 



pennsylvanica DC. 

 Eatonia dudleyi Vasey, Bot. Gaz. 11: 116. 



1886. Michigan to Long Island and 



Pennsylvania to North Carolina. [Type, 



Ithaca, N. Y., Dudley in 1882.] 

 Eatonia nitida Nash, Torrey Bot. Club 



Bui. 22: 511. 1895. Based on Aim 



nitida Bieler. 

 Eatonia glabra Nash, in Britton, Man. 



1043. 1901. Madison County, Tenn., 



Bain 507. 

 Sphenopholis nitida glabra Scribn., Rho- 



dora 8: 145. 1906. Based on Eatonia 



glabra Nash. 

 Sphenopholis nitida var. glabra Scribn. ex 



Robinson, Rhodora 10: 65. 1908. 



Based on Eatonia glabra Nash. 

 Sphenopholis glabra Heller, Muhlenbergia 



6: 12. 1910. Based on Eatonia glabra 



Nash. 

 Reboulea nitida Farwell, Mich. Acad. Sci. 



Rpt, 17: 181. 1916. Based on Aim 



nitida Bieler. 

 Reboulea nitida var. glabra Farwell, Mich. 



Acad. Sci. Rpt. 17: 181. 1916. Based 



on Eatonia glabra Nash. 

 (1) Sphenopholis obtusata (Michx.) Scribn., 



Rhodora 8: 144. 1906. Based on Aim 



obtusata Michx. 

 Aira obtusata Michx., Fl. Bor. Amer. 1: 



62. 1803. Carolina to Florida [type], 



Michaux. 

 Airopsis obtusata Desv., Jour. Bot. 1: 



200. 1808. Based on "Agrostis" 



[error for Aira] obtusata Michx. 

 Festuca obtusata Michx. ex Beauv., Ess. 



Agrost. 163. 1812. Name only, prob- 

 ably error for Aira obtusata Michx. 

 Aira truncata Muhl., Descr. Gram. 83. 



1817. Pennsylvania. Name only, Muhl., 



Cat. PI. 11. 1813. 

 Koeleria paniculata Nutt., Gen. PI. 2: 



(Add. 2): 1818. East Florida, T. Say. 

 Aira obtusa Raf., Jour, de Phys. 89: 104. 



1819. Name only under Eatonia. Doubt- 

 less either error for A. obtusata Michx. 



or change of name. 

 Koeleria truncata Torr., Fl. North, and 



Mid. U. S. 1: 116. 1823. Based on 



Aira truncata Muhl. 

 Poa obtusata Link, Hort. Berol 1: 76. 



1827. Based on Aira obtusata Michx. 

 Reboulea gracilis Kunth, Rev. Gram. 2: 



341. pi. 84. 1830. New England to 



Florida. 



Trisetum lobatum Trim, Acad. St. Petersb. 

 Mem. VI. Math. Phys. Nat. 1: 66. 

 1830. North America. 



Agrostis obtusata Steud., Nom. Bot. ed. 2. 

 1: 41. 1840, as synonym of Airopsis 

 obtusata Desv. 



Koeleria lobata Trin. ex Steud., Nom. 

 Bot. ed. 2. 1: 849. 1840. Not K. lobata 

 Roem. and Schult., 1817. As synonym 

 of Reboulea gracilis Kunth. 



Koeleria obtusata Trin. ex Steud., Nom. 

 Bot. ed. 2. 1 : 849. 1840, as synonym of 

 Airopsis obtusata Desv. 



Reboulea obtusata A. Gray, Man. 591. 

 1848. Based on Aira obtusata Michx. 



Eatonia obtusata A. Gray, Man. ed. 2. 

 558. 1856. Based on Aira obtusata 

 Michx. 



Reboulea truncata Torr. ex Munro, Jour. 

 Linn. Soc. Bot. 6: 43. 1862, as syn- 

 onym of R. gracilis Kunth. 



Graphephorum densifiorum Fourn., Soc. 

 Bot. France Bui. 24: 182. 1877. 

 Name only. Mexico [Texas], Berlandier 

 1617. 



Eatonia densifiora Fourn., Mex. PI. 2: 

 111. 1886. Bejar, Tex., Berlandier 

 1617. 



Aira mexicana Trin. ex Fourn., Mex. PI. 2: 

 111. 1886, as synonym of Eatonia 

 densifiora Fourn. 



Eatonia obtusata var. robusta Vasey ex 

 L. H. Dewey, U. S. Natl. Herb. Con- 

 trib. 2: 544. 1894. Western Texas 

 [Wallisville, Wallis in 1881] to Arizona. 



Eatonia obtusata var. robusta Vasey ex 

 Rvdb., U. S. Natl. Herb. Contrib. 3: 

 190. 1895. Mullen, Nebr., Rydberg 

 1807. 



Eatonia obtusata var. purpurascens Vasey 

 ex R}^db. and Shear, U. S. Dept. Agr., 

 Div. Agrost. Bui. 5: 30. 1897. "Vasey 

 in U. S. Natl. Herb." This, the type, 

 from False Washita, Okla., Palmer 

 404; Nebraska, Shear 252, 252 )4, Ryd- 

 berg 2002, Kearney 271, also cited. 



Eatonia pubescens Scribn. and Merr., 

 U. S. Dept. Agr., Div. Agrost. Cir. 27: 

 6. 1900. Starkville, Miss., Tracy. 



Eatonia robusta Rydb., Torrey Bot. Club 

 Bui. 32: 602. 1905. Based on E. 

 obtusata var. robusta Vasey. 



Sphenopholis obtusata lobata Scribn., Rho- 

 dora 8: 144. 1906. Based on Trisetum 

 lobatum Trin. 



Sphenopholis obtusata pubescens Scribn., 

 Rhodora 8: 144. 1906. Based on 

 Eatonia pubescens Scribn. and Merr. 



Eatonia annua Suksdorf, West. Amer. 

 Sci. 15: 50. 1906. Dalles on Columbia 

 River, Oreg., Suksdorf 1553. [Plants 

 depauperate, flowering first year.] 



Sphenopholis obtusata var. pubescens 

 Scribn. in Robinson, Rhodora 10: 65. 

 1908. Based on Eatonia pubescens 

 Scribn. and Merr. 



Sphenopholis obtusata var. lobata Scribn. 



