MANUAL OF THE GRASSES OF THE UNITED STATES 975 



Trisetum ludovicianum Vasej', Bull. Torrey Bot. Club 12: 6. 1885. Pointe 



a la Hache, La., Langlois. 

 Sphenopholis palustris Scribn., Rhodora 8: 145. 1906. Based on Avena 



palustris Michx. 

 Sphenopholis palustris flexuosa Scribn., Rhodora 8: 143,145. 1906. Wilming- 

 ton, Del., Commons 274. 

 Sphenopholis palustris var. flexuosa Scribn.; Robinson, Rhodora 10: 65. 1908. 



Based on S. palusiris flexuosa Scribn. 

 Sphenopholis pennsylvanica Hitchc, Amer. Jour. Bot. 2: 304. 1915. Based 



on Avena pennsylvanica L. 

 Sphenopholis pennsylvanica var. flexuosa F. T. Hubb., Rhodora 18: 234. 1916. 



Based on S. palustris flexuosa Scribn. 

 The plant from Hunting Creek, Va., discussed by Vasey (Bot. Gaz. 9: 165. 

 1884) as a hybrid between Trisetum palustre and Eatonia pennsylvanica, is an 

 exceptional specimen of Trisetum pennsylvanicum (L.) Beauv. with short-awned 

 and awnless spikelets. 

 (5) Trisetum spicatum (L.) Richt., PI. Eur. 1: 59. 1890. Based on Aira 



spicata L., Sp. PI. 64. 1753. 

 Aira spicata L., Sp. PL 64. 1753. 32 Lapland. 

 Aira subspicata L., Syst. Nat. ed. 10. 2: 873. 1759. Based on A. spicata L. 



(Sp. PI. 64. 1753), the diagnosis copied. 

 Avena airoides Koel., Descr. Gram. 298. 1802. Based on Aira subspicata L. 

 Avena mollis Michx., Fl. Bor. Amer. 1: 72. 1803. Canada. Not Avena mollis 



Salisb., 1796, nor Koel., 1S02. 

 Avena subspicata Clairv., Man. Herbor. 17. 1811. Based on a phrase name in 



Haller which refers to Aira spicata L. 

 Trisetum subspicatum Beauv., Ess. Agrost. 88, 149. 1812. Based on Aira 



subspicata L. 

 IMelica triflora Bigel., New England Jour. Med. and Surg. 5: 334. 1816. 



Mount Washington, N.H., Boott. 

 Trisetaria airoides Baumg., Enum. Stirp. Transsilv. 3: 265. 1816. Based on 



Avena airoides Koel. 

 Trisetum airoides Beauv. ; Roem. and Schult., Syst. Veg. 2: 666. 1817. Based 



on Avena airoides Koel. 

 Trisetum molle Kunth, Rev. Gram. 1: 101. 1829. Based on Avena mollis 



Michx. 

 Koeleria subspicata Reichenb., Fl. Germ. 49. 1830. Based on Aira subspicata 



L. 

 Koeleria cancscens Torr., in Trim, Mem. Acad. St. Petersb. VI. Sci. Nat. 2 1 : 



13. 1836, as synonym of Trisetum molle Kunth. 

 Trisetum subspicatum var. molle A. Gray, Man. ed. 2. 572. 1856. Based on 



Avena mollis Michx. 

 Koeleria spicata Reichenb.; Willk. and Lange, Prodr. Fl. Hisp. 1: 72. 1861, 



as synonym of Trisetum subspicatum Beauv. 

 Rupestrina pubcscens Provancher, Fl. Canad. 689. 1862. Based on Avena 



mollis Michx. 

 Trisetum spicatum. var. molle Beal, Grasses N.Amer. 2: 377. 1896. Based on 



Avena mollis Michx. 

 Trisetum britlonii Nash, Bull. N.Y. Bot. Gard. 1: 437. 1900. Marquette, 



Mich., Brilton in 1883. 

 Trisetum congdoni Scribn. and Merr., Bull. Torrey Bot. Club 29: 470. 1902. 



Mariposa County, Calif., Congdon. (T. sesquiflorum Trim, to which T. 



congdoni has been referred, is a distinct Alaskan species.) 

 Trisetum americanum Gandog., Bull. Soc. Bot. France 49: 182. 1902. Colo- 

 rado; Idaho. 

 Trisetum majus Rydb., Colo. Agr. Expt. Sta. Bull. 100: 34. 1906. "T. 



subspicatum major Vasey", an unpublished name, cited as basis. A tall speci- 

 men collected by Vasey, Pen Gulch, Colo., in 1884 and marked "var. major 



Vasey" in his script is taken as type. No description by Rydberg except the 



distinctions given in the key. 

 Avena spicata Fedtsch., Act. Hort. Petrop. 28: 76. 1908. Not A. spicata L. 



Based on Aira spicata L. 

 Trisetum spicatum var. pilosiglume Fernald, Rhodora IS: 195. 1916. 



Newfoundland, Fernald, Wiegand, and Bartram 4593. 



32 On page 63 of this work is another Aim apicnta L. In the errata at the end of the second volume of the 

 Species Plantarum (issued a few months after the first volume) Linnaeus changes A. spicata of pape ti.'t to 

 A. indica (now referred to Sacciolepis indicu (L.) Chase). 



55974°— 35 62 



