126 RCJCHESTER ACADEMY OF SCIENCE. [Oct. 8, 



461. CIXXA L. 



1239. C. arundinacea L. 



Marshes and swampy woods ; frequent. 



1240. C. pendula Trin. (C. arundinacea var. peniiiila Gray.) [C". latifolia 



(Trev.) Griesb.] 



Rare. Ravines, Irondequoit. Wayne county. 



462. CALAMAGROSTIS Adans. 



1241. C. Canadensis Beauv. [C Canadensis (Michx.) Beauv.] Blue-Joint. 



Marshes ; common . 



463. AMMOPHILA Host. 



1243. A. arundinacea Host. {Calamagrostis arenaria Roth.) \A7nn10phila 

 arenaria (L.) Link.] 



Common on the barren beach of lake Ontario. 



464. ARRHENA THERUM Beauv. 



1243. A. AVENACEUM Beauv. \A.eIatius (L.) Beauv.] Oat Grass. 



Rochester, Dr. C. M . Booth. Dr. A . II. Scaring. Wayne county. 



465. HO ECUS L. 



1244. H. lanatus L. Meadow Soft-Grass. Velvet-Grass. 



Meadows in Genesee Valley park, Rochester. L. Holzer. 



466. J}ESCHA.MFS/A Beauv. 



1245. D. flexuosa Trinius. [Aira flcxnosa L.) [D. flex no s a (L.) Trinius.] 



Common in dry woods along the banks of the Genesee river, below 

 Rochester ; occasional on dry slopes elsewhere. 



1246. D. cajspitosa Beauv. (Aira ccrspitosa L.) \D. co'spitosa (L.) Beauv.] 



Rare. Rocky bank of Genesee river, near foot of White street, 

 Rochester, /. B . Fuller. Bergen swamp, J. E . Paine! Sodus, Wayne 

 county, E. L. Hajtkenson . 



467. TRISETUM Pars. 



1247. T. subspicatum Beauv. var. molle Gray. \T. subspicatiim niolle (Mx.) 

 A. Gray. I 



Rare. Dry sandy bank, Brighton, Dr. C. M. Booth! 



1248. T. palustre Torr. \T. palustre (Michx.) Torr.] 



Rare. Near Rochester, Dr. C. M . Booth. 



468. A yENA Tourn. [L.] 



1240- A. striata Michx. 



Monroe county, Dr. .Inna H . Searing. (J. T. Fish . 



A. SATivA L., Common Oat, is frequently spontaneous. 



46g. DANTHONIA DC. 



1250. D. spicata lieauv. \n . spicata (L.) Beauv.] Wild Oat-CIrass. 

 Dry banks and hills ; common. 



CVNOnON Richard. [Cai'Rioi.a Adans.] 



C. Dactvlon Pers. \Capriola Dactylo7i{\..)\\\\r\\.-/.Q.\ Bermuda Grass. 



In mold brought from the woods, Dr. A . H . Searing . 



