4 VoL. 31 ; No. 11 
Bist Ty. 
OF THE 
TORREY BOTANICAL CLUB 
NOVEMBER, 1904 
Desmids from Newfoundland 
JosEPH A. CUSHMAN 
( WITH PLATE 26) 
The material here reported upon was collected at Rose au Rue, 
Newfoundland, September 10 and 11, 1903, by Dr. Glover M. 
Allen. It consisted of but two bottles of material, one containing 
Sphagnum from a pond on an alpine hilltop, the other containing 
portions of leaves of water-plants with a little of the sediment 
Washed from them. From the lateness of the season and the 
— Small amount of material the twenty species represented a fair 
_ number for such circumstances. Certain species were especially 
_ abundant, 7; etmemorus, Cylindrocystis, Mesotaenium and Cosmarium 
being the genera most frequently met with. These are, I believe, 
. the first desmids that have ever been reported from any part of the 
‘sland. The following were found : 
_ Desmrpium: Bartevi (Ralfs) De By. 
Diameter of filament, 25 2. 
But one filament of this species was found, but that was of the 
ical American form figured by Nordstedt (K. Sv. Vet.-Akad. 
ndl, 22°: p/. 2. Ff. 4. 1888). Wolle seems, as Nordstedt says, 
to have been wrong when he says that this species has a twisted 
filament and that “the lateral margins are straight, not bicrenate.” 
In all the specimens I have seen, the crenae of the margin have 
always been apparent and I have not yet seen a twisted filament. 
The figure referred to above seems to be typical of the American 
(he Preceding number of the BULLETIN, Vol. 31, No. 10, for October, 1904 (31: 
523-580, p/. 24, 25) was issued t N 1904.] 
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