124 



Guide to Belfast. 



Scilla verna L. — D. and A., frequent. In Ireland 

 confined to the east coast from Wicklow to Derry. 



Typha angustifolia L. — In both counties, sparingly 



Sparganium affine xS^T/^^/z/. — In both counties, rare. 

 *Acorus Calamus L. — D. and A., abundant throughout 

 the Lagan Canal ; originally introduced, as in its few other 

 Irish stations. 



Butomus umbellatus L. — In both counties, rare and 

 iocal. 



R. IVelch. rho:o. 



GROUP OF SPIRANTHES ROMANZOFFIANA. 



Collected in Co. Armagh. 



Potamogeton plantagineus Ducr. — D., Ardglass 

 district. 



P. nitens Webei-. — D., Lough Aghery and Annsboro' 

 Lake ; A., Dunadry. 



