1906] Lamson-Scribner, The Genus Sphenopholis 145 



Southern New Enghuid, New York to North Dakota and south- 

 ward to South Carolina, Florida, ^Mississippi and Texas. Canada. 

 3a. Sphenopholis nitida glabra (Nash.) Soribn. n. comb. 

 Eafonia glabra Nash. 1901. 

 Southern New York, Illinois, to South Carolina and Tennessee. 



4. Sphenopholis pallens (Spr.) Scribn. n. comb. 



Aira pallens S])r. 1807. 



Aira pallcscens Kitaib. ':* 1817. 



Koeleria inincata Torr. 1824. (excl. syn.) 



Rehoulea pennsylvanica A. Gray, 1848. (Excl. syn.) 



Eafonia pentuijlvauira A. Gray, 18.50. (Excl. syn.) 



Eafonia pallens Scribn. & ^Merrill, 1900. 

 Maine to North Carolina and westward to Wisconsin, Kansas 

 and Texas. 

 4a. Sphenopholis pallens longiflora (Vasey) Scribn. n. comb. 



Eafonia pennsylvanica longiflora. Vasey, 1894. 



Eafonia longiflora, Vasey in Beal. 1896. 

 Texas and ? Louisiana. 

 4b. Sphenopholis pallens major (Torr.) Scribn. n. comb. 



Koeleria fruncafa major Torr. 1824. 



Rehoulea pennsylvanica major Gray. 1848. 



Rehoulea gracilis Kunth. 18.30. ( ?) 



Eafonia infermedia Ryrlb. 1905. 

 Maine to Washington south to Pennsylvania, Illinois, Colorado, 

 New Mexico and Arizona. 



5. Sphenopholis palustris (Michx.) Scribn. n. comb. 



A vena palusfris Michx. 1803. 



Aira pallens arisfafa Ell. 1816. 



Trisefum palusfre Trin. 1830. 



Trisetum ludovicianum Vasey, 188.5. 

 Massachusetts southward to Tennessee, Louisiana and Georgia. 

 Canada to latitude .59°. 

 5a. Sphenopholis palustris flexuosa Scribn. n. subsp. 



No. 274 A. Commons, from Delaware, 1874, and 



No. 4800 A. A. Heller, from Peima. both in the National 

 Her])arium. 



6. Sphenopholis interrupta (Buckl.) Scribn. n. comb. 



Trisefinn inferrupfnni Buckl. 1863. 

 ■ Trisetum elongafum Beal, 1896, not Kunth. 1829. (Err. 

 deter m.) 



