ADDITIONS TO THE FLORA OF WASHINGTON. 87 



986$. Cyperus flavescens, L. 



Specimen found in herb. Dep't Agriculture, collected in 1872 by Mr. 



Rudolph Oldberg, in the vicinity of Washington. 

 9900. Cyperus inflexus, Muhl. 



Chain Bridge, Dr. Chas. Mohr, September, 1882. 

 9960. Cyperus refractus, Eng. 



Collected near Washington by Dr. George Vasey. 

 10020. Eleocharis Engelmanni, Steud. 



Dried pond above Sandy Landing, June 24, 1883. 

 10190. Rhynchospora fusca, Roem. & Schult. 



Specimens in herb. Department of Agriculture, collected in the vicinity 



of Washington by Dr. George Vasey. 

 10310. Carex muricata, L. 



Established in and around the Agricultural Department grounds, fide 



Dr. Vasey and Mr. Conant. 

 H28a. Glyceria pallida, Trin. 



North side of Four Mile Run pond, Dr. Vasey, 1883. 

 11600. Hordeum jubatum, L. SQUIRREL-TAIL GRASS. 



Park near B and 4^ streets, July 10, 1882. 



1169*7. Arrhenatherum avenaceum, Beauv. OAT (TRASS. 



Hillside above Boundary street and Conn. Ave., June 17, 1882. 

 11950. Setaria Italica, Kimth. MILLET, BENGAL GRASS. 



Agricultural Department grounds, July 22, 1882. 

 12530. Isoetes Engelmanni, Al. Br., var. valida, Eng. QUILLWORT. 



Pool among rocks above Sandy Landing, June II, 1882. 



CORRECTIONS. 



The following names should be substituted for those standing in the Check-list 

 opposite these numbers : 



236. Rhynchosia tomentosa, Hook. & Arn., var. erecta, Torr. & Gray. 

 989. Cyperus microdontus, Torr. 

 991. Cyperus vegetus, Willd. 

 1055. Carex glaucodea, Tuckerm. 

 1129. GUyceria Canadensis, Trin. 



