22 CONTRIBUTIONS TO WESTERN BOTANY. 



distinct, but intergrades occur in the latter, but are not known in 

 the former. No. 4109 Jones, Winslow, Ariz., Sept., 1884, distrib- 

 uted as A. Greggii. 



LEPTOCHLOA. 



The Department of Agriculture is to be congratulated upon 

 the recent mom^raph on Leptochloa by Mr. Hitchcock. It is 

 the best thing on grasses since the work of Dewey. During the 

 Scribnerian regime the Division went into eclipse. an<! later be- 

 came a laughing stock on the publication of the twenty-three 

 species maiuifactured out of Elymus Sitanion, but it seeir.? that 

 the new .\grostologist is determined to restore the prestige of his 

 Division by work that commends itself to experienced men, and not 

 to rainbow chasers. It is also refreshing to see a return to the 

 principles of sound nomenclature and specific limitation so charac- 

 teristic of Gray end so lacking in the Brittonian school. 



