97 
NOTES ON SCOTCH FRESH-WATER ALG, 
By Wuuu1am West, F.L.S. 
(Pate 338), 
Durine a short botanical tour about some of the mountains of 
Scotland, in July, 1889, I made a large number of gatherings of 
Alge ; I had also collected some in August, 1880; Mr. J. McAndrew, 
of New Galloway, collected certain plants at my request, the washings 
from which were rich; and Mr. E. Naylor, of Bradford, made a 
gathering in the Orkneys. An examination of these collections has 
resulted in a fair list of species, many of them not having been 
recorded before as British. 
During the preparation of this list, I ascertained that Mr. J. 
Roy, of Aberdeen, was preparing a list of the Desmids of Scotland; 
I therefore handed over to him a list of those I had noted, about 
200 in number, several of which were new species ; most of the 
d before by 
r. Roy. 
Washings and squeezings of Myriophyllum, Hypnum trifarium, 
rginata, and similar 
work. 
As the following names of localities are of frequent occurrence, 
they are contracted as follows :-- 
B. = Ben Lawers. M. = Meal Odhar. 
CG. = Craig-an-Lochan. N. = New Galloway 
G. = Carn-na-Glasha. S. = Glen Shee. 
Gm. = Glas Maol. T, = Glen Tilt. 
I.—ALGz. 
Class Confervoidee Heterogamee. 
Ord. CEpoGcontacE®. 
- CBdogonium Itzigsohnit De Bary, var. MINOR, Nov. var. Var cum 
cellulis angustioribus et oosporis minoribus. Crass. cell. veget. 
6-6'5 p; altit. 8-11 plo major; crass. oogon. 80 »; altit., 28-30 p; 
crass oospor. 18-20 p; altit. 18-20 p. Orkney Is. 
Gi. platygynum Wittr. 8. 
7, sp. Aberdeen. Crass. cell. veget. 10-12°5 p; altit. 6-7 plo 
major; crass. oogon. 24 p; altit. 40 »; crass. oospor. 20 p; 
altit. 30 p. 
Journat or Botany.--Vou. 81. [Aprit, 1893.] H 
