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Atkinson . — A Monograph of the 
the protoplasm in all of the cells much contracted, the pre- 
paration cleared up, and the origin of the ooblastema-filaments 
can be distinctly traced to the cell differentiated at the base 
of the trichogyne. Fig. 15 is from L. [Sac her id) fucina Bory, 
and Fig. 41 is from L. australis Atk. 
The moniliform series of spores are enveloped in a mucila- 
ginous sheath till maturity, from which they escape during 
summer or autumn. 
V. Branching of the Sexual Shoot. 
Normal Branching . This takes place more frequently in 
the subgenus Sacheria. The branch arises from one of the 
young primary cells, the basal cell usually being one of the 
first cells, differentiated from the primary cell. In Fig. 9, a is 
the apical cell of the main sexual shoot, b is the apical cell of 
the branch. In such branching, where the branch arises from 
a primary cell of the main sexual shoot, the cavity of the 
branch communicates with that of the main one, and the 
branch has no pedicel. This seems to be the normal manner 
of branching. There are a number of exceptions showing dif- 
ferent degrees of departure from it. The first step is where 
the generative filaments are already laid out, but in a rudi- 
mentary condition, and the peripheral development has 
reached only the tie-cells. A good example of this I found in 
L. ( Sacheria :) fucina Bory. At the point of origin of the 
branch a few of the tie-cells were undeveloped and the young 
branch of five primary cells was clearly seen to arise from the 
rudimentary generative filaments. In such a case the first 
cells of the branch would remain imperfectly developed, the 
branch would have a pedicel and its cavity would not com- 
municate with that of the main sexual shoot. Other cases 
equal in degree to this departure are of quite frequent occur- 
rence where the sexual shoot has been broken. Broken 
specimens develop abnormal branches, as well as the Chan - 
transia- form, from the generative filaments, and a great many 
of the normal branches of this species (L. fucina) arise from 
