226 MISS L. S. GIBBS ON THE FLORA AND PLANT FORMATIONS 
TETRADRON MININUM, Hansg. in Hedwigia, xxvii. (1888) 131. 
Tenom, 700’, among Naias in stagnant pool. Jan. 2819. 
Distrib. Europe, N. America, Kerguelen, Afghanistan, tropical Africa, 
Madagascar. 
HETEROKONTA. 
CONFERVALES. ' 
BuMILLERIA PUMILA, West $ G. S. West, in Journ. Bot. xli. (1903) 77, 
446. ff. 22 & 23. 
Matang, 1000’, on damp wood. March. 4406. 4-5 u broad. 
Distrib. England. 
BACILLARIEZJE. 
RAPHIDIE. 
CoccoxEMA GASTROIDES, West & G. S. West in Trans. Bot. Soc, Edin. 
xxiii. (1905) 36. 
Tenom, 700', among Azolla in stagnant pool. Jan. 2816. Tenom, 700', 
among sodden leaves in forest. Jan. 2815. 
Distrib, Europe, United States. 
CoccoNEMA PROSTRATUM, (Z. S. West, Brit. Freshw. Alga, 299 (1904). 
Tenom, 700’, among Azolla in stagnant pool. Jan. 2816. 
Distrib. Europe, United States. 
CoccoNEMA AFFINE, West § G.S. West, in Trans. Bot. Soc. Edin. xxiii. 
(1905) 36. 
Melalap, 800’, on log in river. Jan. 2767. 
Distrib. Europe, United States. 
CoccoNEMA ZEQUALIS, G. S. West, in Ann. S. Afr. Mus. ix. (1912) 73. 
Syn. Cocconema sube qualis, Grun. 
Tenom, 700', among sodden dead leaves in forest. Jan. 2815. 
Distrib. Europe. 
NAVICULA ANGLICA, Ralfs, in Priteh. Inf. ed. 4, 900. 
Tenom, 700', among sodden dead leaves in forest. Jan. 2815. 
Distrib. Europe, Jamaica, tropical Africa, United States. 
NavicuLa Bresissonu, Kütz. Bacill. 93, t. 3. f. 49, t. 30. £. 39. 
Tenom, 700’, in ditch after rain. 2911. Sarawak, Matang, pipe-track 
among alge in peaty water. March. 4413. 
Distrib. Europe, United States. 
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