Figs. 1—3. Phyllophora Brodiei. Sections of nemathecia (from K. Rosenvinge 1929). 1. Auxiliary 
cell with protuberances. 375: 1. 2. Vertical section of nemathecium showing the central 
cell and a smaller nemathecium on the under face of the frond, evidently arisen by 
fusion of several small cushions. 64:1. 3. Transverse section of nemathecium showing 
the central cell. 77:1. 
Figs. 4—10. Ceratocolax Harlzü. 
Fig. 4. From Lille Belt, April. Vertical section of basal part of frond. Cells of the parasite 
penetrate into some of the cells of the host. 75:1. 
Fig. 5. From Store Belt, May. Vertical section of basal part of frond. 124:1. 
Fig. 6. Vertical section of base of young frond arisen by germination in aquarium, September 
1929. The lowermost cells penetrate as haustoria into the host plant. 76:1. 
Fig. 7. From Lille Belt, April. Vertical section of base of plant and the host plant. 76:1. 
Fig. 8. From Middelgrund, south of Als, June. Base of plant encompassing the marginal part 
of the frond of Phyllophora. 80:1. 
Fig. 9. At Friis’ Sten NW of Læso, May. Vertical section of nemathecium not yet ripe. 150:1 
Fig. 10. From Store Belt, May. Section of branch with supposed antheridia. 166:1. 
Fig. 11. Ahnfeltia plicata. Vertical section of nemathecium. 120:1. 
