5 22 



General Notes. 



[April, 



'leuraphis Torr., is verj 



r properly referred to 



Hilaria H.B.K. Mr. Bentham says 









1 Hilaria cenchroides H. E 



1. K., is ap- 



parently distinct. 











Egopogon is placed in 



Panicaceae. 











nded into foui 









Rottbcellieae and A 





,,'eS, 







Imperata, Miscanrh 













i not represented in N. America. 



The group 





: represented i 



nN. Am 







tottboelliacese. The A 







i group are Elionurus, Rottbcellia 



Manisun,. Andre 



pogon Nuttall 



//Chap., 



is an Elionurus nearly re 



dated to E. 



ciliaris H. B. K. 















ich we have Ischsemum (it 





Trachypogon, Hete 







, Chrysopogon 





pogon is divided in 





>: S:ln/.;u:tiynutn, Cymbopogon, C 











- • ' : ,. .. , 





S. arenacea, are species of Chrys. 



jpogon. 



Sorghum includes only thi 



- cultivated 



hum and Hierochlo; 







eludes Vaseya and 



Podossemum), Brachyelytrum, Perieilema, Lycurus, Phleum 



.Coleanthus, Phipp- 

 s Vilfa, Beauv. In 







thist 





a macroura1\xxn\i. 





Of Cinna we have 



two species, C. arundinacea and C.pendula. 





In Deyeu: 



- 







to Ammophila Host. Arctagrostis is an Arctic genus i 



af this tribe. 







Tribe Av 



enea 1 — 16 genera. All our native species of Aira i 



ire referred to Des- 



Tribe Chi 



E istachys Desv. 



Trichloris Fourn. 







Lepturus l 







Bouteloua 



has fourse.Mions : Ci,ondro-,ium, Atheropogon, Triatr 



.era and Polyodon. 



Eleus 









are referred to Diplachne 



in the tribe Festu- 



Triodia in 



ispis. Triplasia Beauv. haj 



; two N. American 



ipecies, as arranged by 

 ius includes Ceratoch- 



Hordiacex ; Our native Triticums are referred to Agropyrum. Gymnostichum 

 Schr., or Hystrix Moench., is referred to Asprella W.lld. 



— Geo. Vasey, Washington, D. C. 

 Botanical Notes. — Romyn Hitchcock, of New York, has 

 merited the gratitude of botanists by undertaking the publi- 

 cation of Habirshaw's " Catalogue of the Diatomaceae," which 

 contains full references to the published descriptions and 

 figures. Every botanical library should secure a copy of this 

 valuable work at an early date, as the edition is limited 

 to two hundred and fifty copies. Part I of this work has 



just appeared. The same publisher has on sale Dr. Henri Van 



Heurck's "Synopsis des Diatomees de Belgique," of which four 

 of the six fascicles have appeared. The excellent plates which 

 ubstance of the fascicles include many hundred 



