IPostelsia 99 



Elymus ciliatus Scribn. Bull. U. S. Div. Agrost. 



11: 57. pi. 16. 1898. Along shaded banks of 



streams in the vicinity of Lake San Juan. 



July 22. R. 801. 



CYPERACE.T. 

 Eleocharis palustris (L.) R. and S. Syst. 2: 



151. 1817. Frequent throughout, in various 



moist habitats. July 6. R. and B. 87. Aug. 7. 



R. 894 b. 

 SciRPUS americanus Pers. Syn. 1:68.1817. On 



moist sandy beaches at the mouth of small 



ravines. June 28. R. and B. 65. 

 SciRPUS CAESPITOSUS L. Sp. PI. 68. 1753. 



Grows abundantly in modified Sphagnum 



bogs. Aug. II. R. 914. 

 SciRPUS MICROCARPUS Presl. Rel. Haenk. 1:193. 



1830. On moist sandy beaches, together 



with Scirptis americanus. June 28. R. and 



B. 61. 

 Eriophorum polystachyon L. Sp. PI. 52.1753 



Abundant in Sphagnum bogs. Aug. 11. 



R. 913. 

 Rynchospora alba (L.) Vahl. Enum. 2:236. 



1806. In Sphagnum bogs. Aug. 2. R. 873. 



