326 QUARTERLY CHRONICLE OF MICROSCOPICAL SCIENCE. 
red seaweed is attached by species of Hntonema. Other red 
seaweeds support a parasitic form (Choreocolax) which is itself 
a Rhodosperm.! 
Except in the case of the S¢phophycee already mentioned, 
it is difficult to imagine any passage from, for example, 
Zygnemee to Mucorini, or Floridee to Ascomycetes. We 
can see indications of a linear series from Zygomycetes, 
Saprolegniee, Ascomycetes, perhaps to Basidiomycetes. 
And possibly Zygomycetes may have been not very remotely 
derived from Schizomycetes. 
If the lines of Alge and Fungi really were as this would 
seem to indicate, after all, distinct, the undoubted fact of 
their morphological parallelism is one of the most remarkable 
and yet suggestive facts in the whole field of Biology. 
W. T. Tutsetton Dyer. 
1 Reinsch, ‘Contributiones ad Algologiam et Fungologiam,’ 1874. See 
also, for other instances, ‘Quart. Journ, Mic. Sce.,’ 1873, p. 366, and 1874, 
p. 296. 
