1't (i »l.l.i\-> \\l> III i;\ El . 



in Becund series, passing around the host ; in older plants the branching 

 may be quite dense, with do regularity discernible. The wall is very 



thin in the younger cells, but becomes quite thick in the older; the 



chromatophore is dense, and Dearly or quite covers the wall. Bristles 



appear to be rare, and those We Saw were short, e\ idently broken off. 



In the oldest parts of the plant, most of the cells had become sponu | 



many of them had emptied, and only one was Been containing spores; 

 these appeared spherical, but no detail- could he made out from the 

 formalin material. The host has thick, distinctly laminate walls, 



and the Kndoderina seems to push apart the laminae without difficulty; 



in one case two plant- were seen, one outside the other, separated by 

 one of the laminae of the bost. In another case a plant was seen 

 quite <>n the outside of the host wall; in this the cells were quite small 

 and spherical; it seems probable that the lamina of the host under 

 which they grew had peeled oil", and tin- cell- took the unu-ual form 



on release of the pressure. 



Pri.m.shkimia Keinke. 



P. b< 'i ata Reinke. L889a, p. 33, PI. XXV; Collins. 1909, p. 288, 

 fiu r . 95. On Wurdemannia, Gibbet Island, Aug., Collins; on Ulva, 

 Harrington Sound, Aug., Collin-. 



• 



MlCHOTH AMNIOX Xageli. 



*M. Kcktzin(;iam"m Nageli in Kiitzing, L849, p. 352; Hazen, L902, 

 p. L91, PI. XXVI, fig, l; PI. XXVII, figs. 2 1; Collins, 1909, p. 294. 

 Among Tetraspora lubrica, on dead leaves in ditch in Devonshire 



Marsh, Dee., Collins. 



QrOCQ< l [J8 Kiitzing. 



*U. INWGNI8 Elass.) Kutzing, L849, p. 207; Wolle, L887, p. 201, 

 PI. (XXIII. figs. 11 -12; Collins, L909, p. 306; P. B.-A., No. li 

 Haematococciu insignia Hassall, 1845, p. 324, PI. IAXX, fig. t>. 

 Among Sphagnum in Devonshire Marsh, April, Collin-. 



Gloioi occus A. Braun. 



*G. mi. osi - A. Braun, 1851, p. L70; Collin-. L909, p. 310, fig. l- > - ) . 

 Among Oedogonium etc., in ditch in Devonshire Marsh. April, Collins. 



