32 Nr. 4. L. KOLDERUP ROSENVINGE: 
about to produce a thinner prolongation before or after 
the formation of a new partition wall. In March the plants 
had developed into small multicellular, often irregular cu- 
shions, partly with long filamentous outgrowths (fig. 15 A, 
C); sometimes the filamentous portion was most developed 
(fig. 15 A). At the ciose of June the best developed germ- 
Fig. 16. Phyllophora Brodiwi. Germlings from tetraspores sown in the 
beginning of December 1925. A, spores newly liberated. B, portion of 
filament from germling. C, eight months old germling, '*/s 1926. D, 14 
months old germling with upright shoot springing near the border 1°/2 
1927. E and. F, 20 months old germlings, **/s 1927. A—C, 625:1. 
; | D, 70:1. E—F, 6:1. 
lings were regular orbicular discs without filamentous out- 
growths, built up of regularly radiating, closely united fila- 
ments, but polystromatic and thicker in the middle- 
most part (fig. 15 F). The discs were rich in starch. In 
other cases they were smaller and thicker, often conical 
(fig. 15 D). At that time some of the cushions produced an 
upright shoot from the upper face, usually from the centre 
