MANUAL OF THE GRASSES OF THE UNITED STATES 833 



Danthonia californica var. unispicata Thurb., in S. Wats., Bot. Calif. 2: 294. 



1880. San Diego to San Francisco, Calif., Bolander, Parry, Lemmon. 

 Merathrepta unispicata Piper, Contrib. U.S. Natl. Herb. 11: 123. 1906. 



Based on Danthonia unispicata Munro. 

 Pentameris unispicata Nels. and Macbr., Bot. Gaz. 56: 470. 1913. Based on 



Danthonia unispicata Munro. 



(55) DESCHAMPSIA Beauv. 



(3) Deschampsia atropurpurea (Wahl.) Scheele, Flora 27: 56. 1844. Based on 



Aira atropurpurea Wahl. 

 Aira atropurpurea Wahl., Fl. Lapp. 37. 1812. Lapland. 



Avena atropurpurea Link, Hort. Berol. 1: 119. 1827. Based on Aira atro- 

 purpurea Wahl. 

 Holcus atropurpureus Wahl., Svensk Bot. pi. 687. 1826-29. Based on Aira 



atropurpurea Wahl. 

 Aira latifolia Hook., Fl. Bor. Amer. 2: 243. pi. 227. 1840. Rocky Mountains, 



Drummond. 

 Vahlodea atropurpurea Fries, Bot. Not. 178. 1842. Presumably based on 



Aira atropurpurea Wahl. 

 Deschampsia latifolia Vasey, Grasses U.S. 29. 1883. Not D. latifolia Hochst., 



1851. Based on Aira latifolia Hook. 

 Deschampsia hookeriana Scribn., Bot. Gaz. 11: 97. 1886. Based on Aira 



latifolia Hook. 

 Deschampsia atropurpurea var. minor Vasey, Bull. Torrey Bot. Club 15: 48. 



1888. Vancouver Island, Macoun in 1887. 

 Deschampsia atropurpurea var. latifolia Scribn.; Macoun, Cat. Can. PI. 2 4 : 209. 



1888. Based on Aira latifolia Hook. 

 (5) Deschampsia caespitosa (L.) Beauv., Ess. Agrost. 91, 149, 160. pi. 18. f. 



3. 1812. Based on Aira caespitosa L. 

 Aira caespitosa L., Sp. PI. 64. 1753. Europe. 



Agrostis caespitosa Salisb., Prodr. Stirp. 25. 1796. Based on Aira caespitosa L. 

 Aira ambigua Michx., Fl. Bor. Amer. 1: 61. 1803. Canada, Michaux. 

 Aira caespitosa var. ambigua Pursh, Fl. Amer. Sept. 1: 77. 1814. Based on 



A. ambigua Michx. 

 Aira cespitosa Muhl., Descr. Gram. 85. 1817. Pennsvlvania; New England. 

 Aira aristulata Torr., Fl. North, and Mid. U.S. 1: 132. 1824. New York, 



Cooper. 

 Campbella caespitosa Link, Hort. Berol. 1: 122. 1827. Based on Aira caespi- 

 tosa L. 

 Podionapus caespitosus Dulac, Fl. Haut. Pyr. 82. 1867. Based on Deschamp- 

 sia caespitosa Beauv. 

 Avena caespitosa Kuntze, Taschenfl. Leipzig 45. 1867. Based on Aira caespitosa 



L. 

 Aira major subsp. caespitosa Syme in Sowerby, English Bot. ed. 3. 11: 64. 



1873. Based on A. caespitosa L. 

 Aira caespitosa var. montana Vasey, in Wheeler, Rept. U.S. Survey 100th Merid. 



6: 294. 1878. Not A. caespitosa var. montana Reichenb., 1850. Utah, 



Colorado, and Arizona. 

 Deschampsia caespitosa var. maritima Vasey, Bull. Torrey Bot. Club 15: 48. 



1888. Vancouver Island, Macoun in 1887. 

 Deschampsia ambigua Beauv.; Jacks., Ind. Kew. 2: 735. 1893. Name only, 



presumably referring to Aira ambigua Michx. 

 Deschampsia caespitosa var. alpina Vasey; Beal, Grasses N.Amer. 2: 368. 



1896. Not D. caespitosa var. alpina Gaudin, 1869. Alaska, Elliott; Colo- 

 rado, Letterman. 

 Deschampsia caespitosa var. confinis Vasey; Beal, Grasses N.Amer. 2: 369. 



1896. Southern California, Palmer 231 in 1888. 

 Deschampsia caespitosa var. longiflora Beal, Grasses N.Amer. 2: 369. 1896. 



Vancouver Island, Macoun in 1887. 

 Deschampsia alpicola Rydb., Bull. Torrey Bot. Club 32: 601. 1905. Based on 



D. caespitosa var. alpina Vasey. 

 Deschampsia confinis Rydb., Bull. Torrey Bot. Club 36: 533. 1909. Based on 



D. caespitosa var. confinis Vasey. 

 Deschampsia pungens Rydb., Bull. Torrey Bot. Club 39: 103. 1912. Banff, 



Alberta, McCalla 2309. 



