352 FRESii-WATER ALG^. \_CJilorospermea. 



parish of Stevenston, at Ashgrove Loch ; and it has been 

 lately got in a well near Beith by Mr. Levack. It has been 

 found in several places both in tiie east and west of Scotland 

 by ]\Ir. Wyville Thomson^ with filaments in some cases six or 

 eight inches in length. It differs from B. moniliforme by 

 being devoid of moniliform whorls_, the distant whorls being 

 like the commencement of filaments. 



3. Batrachospermum stagnale, llass. This is of a 

 pale yellowish-green colour, the branches are sometimes 

 thick and a little compressed, and at other times slender 

 and round. It is much branched and less gelatinous 

 than B, moniliforme. It has been found by Mrs. Dobie, of 

 Crummock, in the Saint's well, near Beith ; by Mr. E. M. 

 Stark near Edinburgh, and by D. L., jun., at Ashgrove 

 Loch. 



4. Batrachospermum vagum, A(j. This is probably 

 the most beautiful of all the Batracliosperms, at least in 

 some of its states and forms. The colour is frequently of a 

 very agreeable bluish or glaucous green. It has been got 

 on the summit of Snowdon by Sir AVilliam J. Hooker; at 

 Loch Phadrick, in Aberdeenshire, by Professor Dickie, 2199 

 feet above the level of the sea ; by Captain Carmichael at 

 Appin; by Professor AY. H. Harvey in Galway, and we 



