198 
NOTES ON JAPANESE DESMIDS. — No. I. 
By Joun Roy anv J. P. Bisser. 
| (PiatE 268), 
HouGH much attention has been devoted to the very interesting 
iaaral — of Japan, no contribution appears to have been made 
to the Desmid-flora of the coun untry, excepting the description of one 
Species ;laeteriaat japonicum) in Suringar’s ‘Alge Japonice,’ pub- 
lished at Haarlem in 1870. The authors have therefore thought it 
desirable to place on record the — ae far, of their examina- 
n of two small collections from ap 
n 1876 one of the authors heonght home a small quantity of 
Material, washed out of specimens of Utricularia gathered on the 
Rifle Range at Yokohama, and in it were found the Desmids now 
recorded as from that district. 
In September last Mr. James Bisset, F.L.S., of Yokohama, 
Seeing a ae stay at Hakodate, in the Island of Yesso, visited a 
= ee twenty miles distant, called by the natives the “ Junsai 
or Brasenia Lake, Junsai being the Japanese name of 
Se peltata, which abounds in the Lake. Along with Brasenia 
he al also found Nuphar japonicum, Nymphea tetragona, Typha japonica, 
aving been found in Siberia, m / Bideg tl ig eossic twee om 
Sibiriens Chlorophyllophycéer’), and a considerable number ie 
Supposed new forms here described for the first time, leaving so: 
to be noticed in a future paper 
I. Micrasterims Ag. 
1. M. denticulata ee Pee numa. 
= 8 rotata (Grev.) R: Junsai numa. 
apiculata heb) 1 Menegh. Long. (ex. sp.) 220»; lat. 
(x. 5) 160 ps sth. 85 p. 
M. Crux-melitensis (Ehrb. ) Ralfs. Junsai numa and Yoko- 
Ee temtidns Nag. Junsai numa. 
6. M. pinnatifida (Kiitz.) Ralfs. Junsai numa. 
Il. Evasrrum Ehrb. 
1. E. verrucosum Ehrb. Yokohama. : 
Journan or Borany.—Von. 25. [Juny, 1886.) = 
