19 



J. acutijiorus, Ehrh. The Hall, Thorpe-le-Soken, 

 Essex, 26/8/98.— E. S. Staiiden. " Yes."— W. H. B. 



J. conglomeratns^ L. Same locality and date. — R. S. 

 Standen. " No, effususr—W. H. B. 



J. glaacus, Leers. Same locality and date. — R. S. 

 Standen. " Yes."— W. H. B. 



J. . Same locality and date. — R. S. Standen. 



"J, effususr~-W. H. B. 



J. diffusus, Hoppe. Thursley Common, Surrey, 

 Sept. 3, 1898. A. J. Crosfield and C. E. Salmon. 

 " Right."— W. H. B. 



J. casta?ieus, Sm. Side of Whitewater, above Glen 

 Dole, Forfarshire, July 31, 1896.— D. T. Playfair. 



Arum italicum, Mill. Moulin Huet, Guernsey, 

 May 23, 1897.— D. T. Playfair. 



Potamogeton crassifolius^YrjQY ( = coriaceus x natans). 

 Engine drain, Mepal Common, Cambs., v.c. 29, July, 1890. 

 Coll. A. Fryer. — A. Bennett. 



P. salicifolius^ Wolf. River Wye, near Ross, Here- 

 fordshire, 7/96. Coll. Ley and Hanbury. — A. Bennett. 



P. acutifolius, L. ? Ditches, Magherasconse Lake, 

 CO. Down, Sept. 1, 1898.— C. H. Waddell. " P. pusilliis, 

 L. with broad leaves." — A. B. 



P. obtusifolius, M. and K. Pond on Witley Common, 

 Surrey, Sept. 3, 1898.— C. E. Salmon. 



P. pusillus, L. var. Berchtoldi (Fieber). Pond near 

 Stirling Castle, Stirling, July, 1898. — Col. Stirling and 

 C. H. Waddell. " Not the variety."— A. B. 



Zannichellia palustris, L. ? Portmore Lough, co. 

 Antrim, August 20, 1898. Coll J. H. Davies.— C. H. 

 Waddell. " This seems to be the var. repens of Z. 

 palustris = Z. repens^ Boenninghausen, Prod. Flor. 

 Monast. West. p. 273 (1824), but I have no authentic 

 specimens at hand to make it quite certain. It has been 

 said, concerning Zannichellia, that 2, 3, and 4 celled 



