214 
Leiche (Fisher), Kirchn. 
incrustation o n the sides of Hee gras out of the w water 
in the middle t tank of the water-lily house, September, 1902. This 
i w. Algae of U.S.A., 
Pd basally. The filaments were broadest at the base, but many 
them did not decrease much apically at all. These Specimens 
will be more fully discussed at another place. 
VII. BACILLARIALES. 
Rc Kiitz., 1833. 
. C. operculata (Ag.), Kitz. Bac., t. i, f. 1. Pond, iake, water-lily 
pond, May-September, 1902 ; common in the plankton 
Coscinodiscus, Hhrb., 1838. 
C. radiatus, Ehrb. Plankton of Thames at Kew, August, 1902. 
Melosira, 4g., 1824. 
M. ie n aren ) Ag. Syst., 8. Plankton of Thames at 
Kew, August, 1 
M. varians, Ay. Consp., 1830, 64. Amongst Vaucheria in moat 
all Ben sea round ; plankton of lake, June, 1902 ; middle tank of 
cin. house, September, 1902 (cells three to four times as 
long ); amongst Cladophora in tank of Herb. Dptmt., June, 
190 ; rien ed of Thames at Kew, August, 1 
M. angulata t E D Rabenh. Alg., i., 40. Plankton of Thames 
at Kew, August, 1 
Campylodiscus, Ehrb., 1841. 
C. noricus, Ehrb. Abh., 1841, 11; Plankton of Thames at Kew, 
Angust, 1902:  . 
Surirella, Turpin, 1827. 
- B. biseriata (Ehrb.), Bréb. Alg. Falaise, t. vii. Plankton of 
es at Kew, August, 1902. 
xs splendida (Ehrt.), Ktz. t. vii, 7.9. Plankton of pond, May, 
‘1902; plankton of Thames at Kew, August, 1902. 
