MANUAL OF THE GRASSES OF THE UNITED STATES 935 



Atropis pauciflora Thurb., in S. Wats., Bot. Calif. 2: 310. 1880. Not Poa 



pauciflora Roem. and Schult., 1817. Sierra Valley, Calif., Lemmon 1871. 



(Though credited to Lemmon the type specimen appears to have been 



collected by Bolander, Lemmon's name not appearing on the label.) 

 Poa pauciflora Benth.; Vasey, Grasses U.S. 42. 1883. Not P. pauciflora 



Roem. and Schult., 1817. Based on Atropis pauciflora Thurb. 

 Poa tenuifolia var. scabra Vasey; Scribn., Bull. Torrey Bot. Club 10: 66, 



1883, as synonym of P. nevadensis. [California, Lemmon.] 

 Panicularia thurberiana Kuntze, Rev. Gen. PL 2: 783. 1891. Based on 



Atropis pauciflora Thurb. 

 Poa thurberiana Vasey, U.S.Dept.Agr., Div. Bot. Bull. 13 2 : pi. 84. 1893. The 



name based on Panicularia thurberiana Kuntze, but the plant described and 



figured is Melica imperfecta Trin. 

 Atropis nevadensis Beal, Grasses N.Amer. 2: 577. 1896. Based on Poa 



nevadensis Vasey. 

 (27) Poa occidentalis Vasey, Contrib. U.S. Natl. Herb. 1: 274. 1893. Las 



Vegas, N.Mex., G. R. Vasey in 1881. 

 Poa flexuosa var. occidentalis Vasey, in Wheeler, Rept. U.S. Survey 100th Merid. 



6: 290. 1878. Twin Lakes, Colo. [Wolf] 1132. 

 Poa trivialis var. occidentalis Vasey, Descr. Cat. Grasses U.S. 85. 1885. 



Colorado and New Mexico, the type being the specimen later described as 



P. occidentalis Vasey. 

 Poa flexuosa var. robusta Vasey, Contrib. U.S. Natl. Herb. 1: 271. 1893. 



Rocky Mountains, Colo., Vasey 673 [Powell's Expedition]. 

 Poa autumnalis var. robusta Beal, Grasses N.Amer. 2: 534. 1896. Based on 



P k flexuosa var. robusta Vasey. 

 Poa occidentalis Rydb., Mem. N.Y. Bot. Gard. 1: 50. 1900. Based on P. 



flexuosa var. occidentalis Vasey. 

 Poa platyphylla Nash and Rydb., Bull. Torrey Bot. Club 28: 266. 1901. 



Based on P. occidentalis Vasey, the name changed because of P. flexuosa 



var. occidentalis Vasey, thought to be different. 

 Poa lacustris Heller, Muhlenbergia 6: 12. 1910. Based on P. flexuosa var. 



occidentalis Vasey. 

 (34) Poa paludigena Fern, and Wieg., Rhodora 20: 126. 1918. Wayne County, 



N.Y., Metcalf and Wiegand 7572. 



Poa sylvestris var. palustris Dudley, Cornell Univ. Bull. 2: 128. 1886. Michi- 

 gan Hollow, N.Y. 



(38) Poa palustris L., Syst. Nat. ed. 10. 2: 874. 1759. Europe. 

 Poa serotina Ehrh., Beitr. Naturk. 6: 83. 1791, name only; Schrad. Fl. 



Germ. 1: 299. 1806. Europe. 



Poa triflora Gilib., Exerc. Phyt. 2: 531. 1792. Europe. 

 Poa crocata Michx., Fl. Bor. Amer. 1: 68. 1803. Lake Mistassini, Quebec, 



Michaux. 

 Poa glauca var. crocata Jones, Contrib. West. Bot. 14: 15. 1912. Based on 



P. crocata Michx. 

 Paneion triflorum Lunell, Amer. Midi. Nat. 4: 223. 1915. Based on Poa 



triflora Gilib. 

 (47) Poa pattersoni Vasey, Contrib. U.S. Natl. Herb. 1: 275. 1893. Grays 



Peak, Colo., Patterson 154. 

 (32) Poa paucispicula Scribn. and Merr., Contrib. U.S. Natl. Herb. 13: 69. pi. 15. 



1910. Yakutat Bay, Alaska, Coville and Kearney 970. 

 (17) Poa pratensis L., Sp. PL 67. 1753. Europe. 



?Poa viridis Schreb.; Pursh, FL Amer. Sept. 1: 79. 1814. North America. 

 Poa angustifolia Ell., Bot. S.C. and Ga. 1: 160. 1816. South Carolina. 

 Paneion pratense Lunell, Amer. Midi. Nat. 4: 222. 1915. Based on Poa 



pratensis L. 

 (54) Poa pringlei Scribn., Bull. Torrey Bot. Club 10: 31. 1883. Headwaters 



of the Sacramento River, Calif., Pringle [in 1882]. 

 Poa argentea Howell, Bull. Torrey Bot. Club 15: 11. 1888. [Ashland Butte], 



Siskiyou Mountains, Oreg., Howell [in 1887]. 

 Melica argentea Beal, Bull. Torrey Bot. Club 17: 153. 1890. Based on Poa 



argentea Howell. 

 Melica nana Beal, Grasses N.Amer. 2: 504. 1896. Based on Poa argentea 



Howell. Name changed because of " M. argentea Desv. " [error for M. 



argentata Desv.]. 

 Atropis suksdorfii Beal, Grasses N.Amer. 2: 574. 1896. [Mount Adams], 



Wash., Suksdorf 1116. Beal gives as synonym "Poa suksdorfii Vasey ined. " 



