34 



CARL SKOTTSBERG, MARINE ALGiE 2. RHODOPHYCEiE. 



are not the obligate birth-place of the procarps, as in Delesseria, Hypoglossum etc. ; Phil- 

 lips has advanced that if a cystocarp is seated on a prominent vein in Ph. sinuosa, this 

 vein has arisen af ter the procarp was formed (1. c. p. 190). 



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Fig. 14. Pseudophycodrys phyllophora: a minute proliferation, b — C marginal teeth, X 480; d cross section through old 

 costa and wing, x 70. — i cells divided by intercalary walls. Cortex cells dotted. 



Evidently Pseudophycodrys cannot be united with any other existing genus. It 

 is difficult to assign the right position to it. It combines characters of Delesseria (the 

 young apex, anatomy of costa), Phycodrys (branching, intercalary divisions, site of pro- 



