228 
PHARMACEUTICAL BOTANY 
near springs, where it forms slimy masses. Under the microscope 
a mount of Glceocapsa will be seen to consist of isolated protoplasts 
and groups of protoplasts, surrounded by concentric gelatinous 
Fig. 109.— A, B, C, D, E, Gloeocapsa; F, Os^illatoria showing a dead cell (d) 
which marks a place of separation into segments. (A). Gloeocapsa, parent cell 
composed of central protoplast containing scattered chromatin granules, sur¬ 
rounded by cell wall and 3 mucliaginous envelopes; ( B ), parent cell is shown 
elongated, the protoplast in process of division to form two daughter protoplasts; 
(C), daughter protoplasts, each surrounded by two gelatinous envelopes and both 
within the original parent envelopes; ( D) the daughter protoplasts shown in C 
have just divided to form granddaughter protoplasts which have later separated, 
each forming envelopes of its own but all four encircled by the parent envelope. 
envelopes. Each protoplast consists of a protoplasmic mass 
which contains blue and green pigments. No definitely organized 
nucleus is apparent but chromatin in the form of granules-is scat- 
