MICHIGAN ACADEMY OF SCIENCE. 181 



the plants that is known in the eastern states as King Devil. Farwell, 

 No. 3915, Oct. 11, 1914. 



CORRECTIONS IN NOMENCL.\TURE. 



In rearranging the plants in my herbarium I found it necessary, in 

 order to give them the correct names tliat they shoidd have, to make 

 some new com! )inat ions which may be recorded here. 



Elodea minor (Engelm) N. Comb, 



Udora verticillata? Var. minor Engelm; Casp. Jahrb. Wiss. Bot. 1, 

 654, 1858. 



Muhlenbergia brevifolia (Nutt.) N. Comb. 



Agrosiis hrevifolia Nutt. Gen. 1, 144, 1818. 



Vilfa cuspidata Torr.; Hook. Fl. Bor. Am. 2, 238, 1840. 



Mhhlenhergia cuspidata Rydberg in Bui. Torr. Bot. CI. 599, 1905. 



Sporoholus hrevifolius Scribn. Mem. Torr. Bot. CI. v. 39, 1895, p. p. 



Muhlenbergia Mexicana (Lin.) Trin. Var. commutata (Scribn.) N, 

 Comb. 



Muhlenbergia Mexicana (Lin.) Trin. Subsp. commutata, Schribn. 

 Rhodora, 9, 18, 1907. 



Reboulea, Kunth, Rev. Gram. 1, 341, PI. 84, 1830. 



In Rhodora for August 1906 Mr. Scribner in a discussion of the grasses 

 then kno^vn as Eatonia points out that they are without a generic 

 name and so creates a new genus Sphenopholis to include them and 

 some others from Trisetum. He passes by Reboulea Kunth 1830 on 

 account of Reboulea, Raddi 1820 a genus of Liverworts (Hepaticae). 

 But Mr. Scribner is in error as Raddi's genus is Rebouillia, a name that 

 cannot conflict with Reboulea, Kunth nor cause confusion in any way 

 by maintaining both as valid genera. Nees ab Essenbeck in 1846 

 changed Raddi's genus to Reboulia but as this was 16 years after 

 Kunth's genus was established it cannot, be accepted as valid; the 

 original spelling of the hepatic genus must therefore be maintained 

 and Reboulea, Kunth is valid for the Eatonias. Michigan forms are: 



Reboulea obtusata (Mx.) A. Gr. Var. pubescens (S. & M.) N. Comb. 



Eatonia pubescens, Scribn. & Merr. Circ. JJ. S. Dep. Agr. Agrost. 

 27, 6, 1900. 



Reboulea pallens (Spr.) N. Comb. 



Aira pallens Spr. Fl. Hal. Mant. 33, 1807. 



Reboulea nitida (Spr.) N. Comb. 



Aira nitida Sjm'. I. c. 32. 



Reboulea nitida var. glabra (Nash.) N. Coml). 



Eatonia glabra Nash. In Britt. Man. 1043, 1901. 



Other species and varieties not alreadv transferred are as follows: 



