1 98 ANNALS OF SCOTTISH NATURAL HISTORY 



of introduction of this plant into Britain seems strengthened by 

 some facts in relation to this case. After reading Mr. Bennett's 

 article, I wrote to Mr. W. Grant, Arisaig, the finder of the plant, 

 asking for any particulars he could think of. In reply he wrote : 

 "The first place I found Juncus tennis was on the edge of a hay- 

 field, beside a track used for the cartage of manure, and not a 

 quarter of a mile from the houses. I only found an odd plant or 

 two there. Afterwards I found it thriving, but not very abundant, 

 as a weed in a corner of the garden amongst rhubarb, etc., where 

 the ground has not been dug for some years. I have not come 

 across it anywhere else as yet, and it has evidently been introduced 

 to these localities lately. There has certainly been a quantity of 

 bought hay used in the stables during the last ten years, but where 

 grown I do not know.'' The plant being as yet limited, so far as is 

 known, to the two localities, the side of a manure track, and 

 among rhubarb, which is commonly mulched with manure, com- 

 bined with the fact that American hay is frequently bought in that 

 part of the coast, as I know to be the case, makes the probability 

 fairly strong that it has been introduced into this locality by this 

 means. SYMERS M. MACVICAR. 



Ceratiomyxa mueida, Schr., and Rivularia ealearea, Smif/i, 

 near Edinburgh. These plants were gathered near Balerno, on 

 Saturday, igth June, by members of the Edinburgh Field Naturalists' 

 and Microscopical Society, during an entomological excursion under 

 the leadership of Mr. P. H. Grimshaw. The fungus, found on a 

 decayed pine stem, is not uncommon about Edinburgh, although 

 Greville in his " Flora Edinensis " states it is rare, and only grows 

 in the autumn. The alga, gathered on moist rocks, is rather rare in 

 the neighbourhood. A. B. STEELE, Edinburgh. 



