MANUAL OF THE GRASSES OF THE UNITED STATES 



943 



(28) Poa occidentalis Vasey, U. S. Natl. 

 Herb. Contrib. 1: 274. 1893. Las 

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



Poa flexuosa var. occidentalis Vasey in 

 Rothr., in Wheeler, U. S. Survey W. 

 100th Merid. Rpt. 6: 290. 1878. Twin 

 Lakes, Colo. [Wolf] 1132. 



Poa trivialis var. occidentalis Vasey, 

 Grasses U. S. Descr. Cat. 85. 1885. 

 Colorado and New Mexico, the type 

 being the specimen later described as 

 P. occidentalis Vasey. 



Poa flexuosa var. robusta Vasey, U. S. 

 Natl. Herb. Contrib. 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. 

 flexuosa var. robusta Vasey. 



Poa occidentalis Rydb., N. Y. Bot. Gard. 

 Mem. 1 : 50. * 1900. Based on P. 

 flexuosa var. occidentalis Vasey. 



Poa platyphylla Nash and Rydb., Torrey 

 Bot. Club Bui. 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. occi- 

 dentalis Vasey. 

 (35) Poa paludigena Fern, and Wieg., Rho- 

 dora 20: 126. 1918. Wayne County, 

 N. Y., Metcalf and Wiegand 7572. 



Poa sylvestris var. palustris Dudley, Cor- 

 nell Univ. Bui. 2: 128. 1886. Michigan 

 Hollow, N. Y. 

 (39) 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. Misspelled P. crocea in Muhl., 



Cat. PI. 11. 1813. 

 Poa glauca var. crocata Jones, West. Bot. 



Contrib. 14: 15. 1912. Based on P. 



crocata Michx. 

 Paneion triflorum Lunell, Amer. Midi. 



Nat. 4: 223. 1915. Based on Poa 



triflora Gilib. 

 (50) Poa pattersoni Vasey, U. S. Natl. 



Herb. Contrib. 1: 275. 1893. Grays 



Peak, Colo., Patterson 154. 

 (33) Poa paucispicula Scribn. and Merr., 



U. S. Natl. Herb. Contrib. 13: 69. pi. 15. 



1910. Yakutat Bay, Alaska, Coville and 



Kearney 970. 

 (18) Poa pratensis L., Sp. PI. 67. 1753. 



Europe. 

 Poa angustifolia L. Sp, Pi 67. 1753, 



Europe. 

 Poa pratensis var. angustifolia Gaudin, 



Agrost. Helv. 1: 214. 1811. Based on 



P. angustifolia L. This name has been 



credited to Smith, Fl. Brit. 105. 1800, 



but the combination is not there made, 



"($. Poa angustifolia L." merely cited 



under P. pratensis. 

 ?Poa viridis Schreb. ex Pursh, Fl. Amer. 



Sept. 1: 79. 1814. North America. 



Name only, Muhl., Cat. PI. 11. 1813. 

 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. 

 Poa peckii Chase, Wash. Acad. Sci. Jour. 



28: 54. f. 2. 1938. Jefferson County, 



Oreg., Peck 19804. 

 (58) Poa pringlei Scribn., Torrey Bot. Club 



Bui. 10: 31. 1883. Headwaters of the 



Sacramento River, Calif., Pringle [in 



1882], 

 Poa argentea Howell, Torrey Bot. Club 



Bui. 15: 11. 1888. [Ashland Butte] 



Siskiyou Mountains, Oreg., Howell [in 



1887]. 

 Melica argentea Beal, Torrey Bot. Club 



Bui. 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." 

 Atropis pringlei Beal, Grasses N. Amer. 2: 



578. 1896. Based on Poa pringlei 



Scribn. 

 Poa suksdorfii Vasey ex Piper, U. S. Natl. 



Herb. Contrib. 11: 135. 1906. Based 



on Atropis suksdorfii Beal. 

 (31) Poa reflexa Vasey and Scribn., U. S. 



Natl. Herb. Contrib. 1: 276. 1893. 



Kelso Mountain, near Torrey Peak, 



Colo., Letterman in 1885. 

 Poa acuminata Scribn. in Beal, Grasses 



N. Amer. 2 : 538. 1896. [Mount Black- 

 more] Mont., Tweedy 639 in 1885, 1027 



in 1886. 

 Poa pudica Rydb., Torrey Bot. Club Bui. 



32 : 603. 1905. Near Grays Peak, Colo., 



Rydberg 2443. 

 Poa leptocoma var. reflexa Jones, West. 



Bot. Contrib. 14: 15. 1912. Based on 



P. reflexa Vasey and Scribn. 

 (11) Poa rhizomata Hitchc. in Jepson, Fl. 



Calif. 1 : 155. 1912. Oro Fino, Siskiyou 



County, Calif., Butler 1205. 

 Poa piperi Hitchc. in Abrams, Illustr. Fl. 



1: 201. f. 461. 1923. Waldo, Oreg., 



Piper 6496. 

 (51) Poa rupicola Nash, N. Y. Bot. Gard. 



Mem. 1: 49. 1900. Based on P. 



rupestris Vasey. 

 Poa rupestris Vasey, Torrey Bot. Club 



Bui. 14: 94. 1887. Not P. rupestris 



