MANUAL OF THE GRASSES OF THE UNITED STATES 



851 



Arundo semiannularis Labill., Nov. Holl. 

 PL 1: 26. pi. 33. 1804. Australia. 

 (3) Danthonia sericea Nutt., Gen. PI. 1: 



71. 1818. Carolina to Florida. 

 Danthonia glabra Nash, Torrey Bot. Club 



Bui. 24: 43. 1897. Not D. glabra Phil., 

 1896. Little Stone Mountain, Ga., 

 Small in 1895. 



Danthonia epilis Scribn., U. S. Dept. Agr., 

 Div. Agrost. Cir. 30: 7. 1901. Based on 

 D. glabra Nash. 



Merathrepta sericea Heller, Muhlenbergia 

 5: 120. 1909. Based on Danthonia 

 sericea Nutt. 



Pentameris epilis Nels. and Macbr., Bot. 

 Gaz. 56: 469. 1913. Based on Dantho- 

 nia epilis Scribn. 



Pentameris sericea Nels. and Macbr. , Bot. 

 Gaz. 56: 470. 1913. Based on Dantho- 

 nia sericea Nutt. 



This is the species described by Elliott 



(Bot. S. C. and Ga. 1 : 174. 1816) under the 



name Avena spicata L. 



(1) Danthonia spicata (L.) Beauv. ex 



Roem. and Schult., Syst. Veg. 2: 690. 



1817. Based on Avena spicata L. 



Avena spicata L., Sp. PL 80. 1753. Penn- 

 sylvania. 



Avena glumosa Michx., Fl. Bor. Amer. 1: 



72. 1803. Pennsylvania; Carolina, 

 Michaux. (In Index Kewensis this name 

 is erroneously credited to Ell. Elliott 

 cited A. glumosa Michx. as synonym of 

 A. spicata L.) 



Danthonia glumosa Beauv., Ess. Agrost. 

 92, 153, 160. 1812. Based on Avena 

 glumosa Michx. 



Avena spicaeformis Beauv., Ess. Agrost. 

 154. 1812, name only; Roem. and 

 Schult., Syst. Veg. 2: 690. 1817, as 

 synonym of Danthonia spicata L. 



Triodia glumosa Beauv., Ess. Agrost. 

 Atlas 12. pi. 18. f. 7. 1812. Evidently 

 an error for Danthonia glumosa Beauv. 



Merathrepta spicata Raf. ex Jacks., Ind. 

 Kew. 2: 211. 1894, as synonym of 

 Danthonia spicata. 



Danthonia spicata var. villosa Peck, N. Y. 

 State Mus. Ann. Rpt. 47: 168. 1894. 

 Brownville [Peck] and Taberg, N. Y. 



Danthonia spicata pinetorum Piper, Ery- 

 thea 7: 103. 1899. Mason County, 

 Wash., Piper 943. 



Danthonia thermale Scribn., U. S. Dept. 

 Agr., Div. Agrost. Cir. 30: 5. 1901. 

 Yellowstone Park, Wyo., A. Nelson 

 and E. Nelson 6140. 



Danthonia spicata var. longipila Scribn. 

 and Merr., U. S. Dept. Agr., Div. 

 Agrost. Cir. 30: 7. 1901. Benton 

 County, Ark., Plank 38. 



Merathrepta pinetorum Piper, U. S. Natl. 

 Herb. Contrib. 11: 122. 1906. Based 

 on Danthonia spicata pinetorum Piper. 



Merathrepta thermale Heller, Muhlen- 

 bergia 5: 120. 1909. Based on Dan- 

 thonia thermale Scribn. 



Merathrepta thermale var. pinetorum Piper 



ex Fedde and Schust., in Just's Bot. 



Jahresber. 37: 128. 1911 (erroneously 



ascribed to Heller, Muhlenbergia 5: 



120. 1909). 

 Pentameris spicata Nels. and Macbr., 



Bot. Gaz. 56: 470. 1913. Based on 



Avena spicata L. 

 Pentameris thermale Nels. and Macbr., 



Bot. Gaz. 56: 470. 1913. Based on 



Danthonia thermale Scribn. 

 Danthonia pinetorum Piper in Piper and 



Beattie, Fl. Northw. Coast 46. 1915. 



Based on D. spicata pinetorum Piper. 

 Danthonia spicata var. typica Fernald, 



Rhodora 45: 242. 1943. Based on 



Avena spicata L. 

 (7) Danthonia unispicata (Thurb.) Munro 



ex Macoun, Can. PL Cat. 2*: 215. 



1888. Based on D. californica var. 



unispicata Thurb. The name was earlier 



listed without description as follows: 



Thurb. in A. Gray, Proc. Acad. Phila., 



1863: 78. 1863, name only, for Geyer 



189. Thurb. in S. Wats., Bot. Calif. 



2: 294. 1880, as synonym of D. 



californica var. unispicata Thurb. 



Munro; Vasey, Descr. Cat. Grasses 



U. S. 59. 1885. Name only. 

 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, U. S. Natl. 



Herb. Contrib. 11: 123. 1906. Based 



on Danthonia unispicata Munro. 

 Pentameris unispicata Nels. and Macbr., 



Bot. Gaz. 56: 470. 1913. Based on 



Danthonia unispicata Munro. 



(58) DESCHAMPSIA Beauv. 



(4) Deschampsia atropurpurea (Wahl.) 



Scheele, Flora 27: 56. 1844. Based on 



Aira atropurpurea Wahl. 

 Air a atropurpurea Wahl., Fl. Lapp. 37. 



1812. Lapland. 

 Holcus atropurpureus Wahl., Svensk Bot. 



pi. 687. 1826-29. Based on Aira 



atropurpurea Wahl. 

 Avena atropurpurea Link, Hort. Berol. 



1: 119. 1827. Based on Aira atropur- 

 purea 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, Torrey Bot. Club Bui. 15: 48. 



