78 Transactions British Mycological Society. 
sheath of the original filament which becomes twisted and inter- 
twined to form the colony. 
The cells are generally all alike, being spherical and only 
o-8—1-2 » in diameter. The sheath in well-developed specimens 
is from 10-20 wide but may be less or not developed at all 
in which case we are dealing with the form nuda of Liesenberg 
and Zopf. I have not seen the large elongated cells as figured 
Fic. 1. A-E. Capsules detached from young colony. A. Typical form. B. Form 
with stratified membrane showing difference in size of cells. C and D. 
Forms showing filamentous tendency. E. Form showing cell-division 
in two planes at right-angles. F. Portion of section of colony showing 
capsules forming pseudoparenchymatous structure. 
by Orla-Jensen(6) in his Betacoccus bovis but some strains in- 
cluded by him in this species may not be identical with Leu- 
conostoc mesenteroides. On the other hand we may sometimes - 
find one of a pair or one cell in a filament differing appreciably 
in size from the others. Such cells at first suggest arthrospores, 
but an examination of their behaviour towards stains shows 
them to be, in their reactions, quite normal cells. The latter 
