MANUAL OF THE GRASSES OF THE UNITED STATES 933 



(20) Poa glaucifolia Scribn. and Williams, U.S.Dept.Agr., Div. Agrost. Circ. 10: 



6. 1899. Based on P. planifolia Scribn. and Williams. 

 Poa planifolia Scribn. and Williams, U.S.Dept.Agr., Div. Agrost. Circ. 9: 3. 



1899. Not P. planifolia Kuntze, 1898. Spring Creek, Big Horn Basin, Wyo., 



Williams 2814. 

 Poa plattensis Rydb., Brittonia 1: 84. 1931. Lawrence Fork, Nebr., Rydberg 



461. 

 (58) Poa gracillima Vasey, Contrib. U.S.Natl. Herb. 1: 272. 1893. Mount 



Adams, Wash., Suksdorf 33. 

 Sporobolus bolanderi Vasey, Bot. Gaz. 11: 337. 1886. Not Poa bolanderi 



Vasey, 1882. Multnomah Falls, Oreg., Bolander. [The type an over- 

 mature specimen from which all but the lowermost floret had fallen from the 



spikelets.] 

 Atropis tenuifolia var. stenophylla Vasey; Beal, Grasses N.Amer. 2: 580. 1896. 



[Roseburg], Oreg., Howell in 1887. 

 Poa saxatilis Scribn. and Williams, U.S.Dept.Agr., Div. Agrost. Circ. 9: 1. 



1899. Mt. Rainier, Wash., Piper 1964. 



Poa tenerrima Scribn., U.S.Dept.Agr., Div. Agrost. Circ. 9: 4. 1899. Cali- 

 fornia. 

 Poa invaginata Scribn. and Williams, U.S.Dept.Agr., Div. Agrost. Circ. 9: 6. 



1899. Summit Camp, Sierra Nevada, Calif. 

 Poa multnomae Piper, Bull. Torrey Bot. Club 32: 435. 1905. Multnomah 



Falls, Oreg., Piper 6459. 

 Poa alcea Piper, Bull. Torrey Bot. Club 32: 436. 1905. Portland, Oreg., 



Piper 6463. 

 Poa buckleyana var. stenophylla Jones, Contrib. West. Bot. 14: 14. 1912. 



Based on Atropis tenuifolia var. stenophylla Vasey. 

 Poa gracillima yar. saxatilis Hack., Allg. Bot. Ztschr. 21: 79. 1915. Based 



on P. saxatilis Scribn. and Williams. 

 Poa englishii St. John and Hardin, Mazama 11: 64. 1929. Mount Baker 



National Forest, Hardin and English 1391. 

 (2) Poa howellii Vasey and Scribn., U.S.Dept.Agr., Div. Bot. Bull. 13 2 : pi. 78. 



1893. California to Oregon. [Portland, Howell 25 in 1881, type.] 

 Poa howellii var. microsperma Vasey, Contrib. U. S. Natl. Herb. 1: 273. 1893. 



Santa Cruz, Calif., Anderson 99. 

 Poa bolanderi yar. howellii Jones, Contrib. West. Bot. 14: 15. 1912. Based 



on P. howellii Vasey and Scribn. 

 (39) Poa interior Rydb., Bull. Torrey Bot. Club 32: 604. 1905. Headwaters of 



Clear Creek and Crazy Woman River, Wyo., Tweedy 3706. 

 Poa caesia yar. strictior A. Gray, Man. ed. 5. 629. 1867. "Lake Superior, 



C. G. Loring, especially Isle Royale, Prof. Whitney." 

 Poa coloradensis Vasey; Pammel, U.S.Dept.Agr., Div. Agrost. Bull. 9: 41. 



1897. Name only, for a specimen collected by Pammel in Colorado in 1895- 

 96. 



Poa subtrivialis Rydb., Bull. Torrey Bot. Club 36: 536. 1909. Big Horn 



Mountains, Wyo., Tweedy 2141. 

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



P. caesia var. strictior A. Gray. 

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



interior Rydb. 



(49) Poa involuta Hitchc., Biol. Soc. Wash. Proc. 41: 159. 1928. Chisos Moun- 

 tains, Brewster County, Tex., Ferris and Duncan 2811. 

 (63) Poa juncifolia Scribn., U.S.Dept.Agr., Div. Agrost. BuU. 11: 52. pi. 8. 



1898. Point of Rocks, Sweetwater County, Wyo., Nelson 3721. 



Poa brachyglossa Piper, Biol. Soc. Wash. Proc. 18: 145. 1905. Douglas 



County, Wash., Sandberg and Leiberg 267. 

 Poa fendleriana var. juncifolia Jones, Contrib. West. Bot. 14: 14. 1912. Based 



on P. juncifolia Scribn. 

 (15) Poa kelloggii Vasey, U.S.Dept.Agr., Div. Bot. BuU. 13 2 : pi. 79. 1893. 



[Mendocino County], Calif., Bolander 4705. 

 Poa bolanderi var. kelloggii Jones, Contrib. West. Bot. 14: 15. 1912. Based 



on P. kelloggii Vasey. 

 (25) Poa languida Hitchc., Biol. Soc. Wash. Proc. 41: 158. 1928. Based on 



P. debilis Torr. 

 Poa debilis Torr., Fl. N..Y. 2: 459. 1843. Not P. debilis Thuill., 1799. 



[Gorham], New York, 



