Takeda . — Scourfieldia cordiformis, a New Chlamydomonad. 159 
ruplo longioribus praedito, a latere visae obovatae vel anguste obovatae, in 
polum posterius obtusatum sensim attenuatae. Chromatophora singula, 
viridis, homogenea, subcampanulata, sed compressa, apice ad medium fissa, 
sine pyrenoide ; stigma et forsan vacuolae contractiles carentes ; nucleus 
minutus, centralis. Long. cell. 4-4*5 ^ ; lat. cell. 3*5-4 y, crass. 2*3 — ^*6 ya ; 
long, flagellorum usque ad 20 y. 
A .S. complanata , G. S. West, specie unica adhuc cognita, praesertim 
cellula a latere visa obovata nec anguste oblonga dignoscitur. 
Hab. in Sphagnis, Keston, Kent (F. E. Fritsch., 1915). 
The writer wishes to tender thanks to Sir David Prain, C.M.G., the 
Director of the Royal Botanic Gardens, Kew, for facilities for carrying out 
the present examination in the Jodrell Laboratory. Thanks are also due 
to Mr. L. A. Boodle, the Keeper of the Jodrell Laboratory, for his kind 
help during the preparation of this paper. 
