A common species on the southern coast, and in Tasmania, 

 most allied to Cyst, hotryocystis (Plate LVL), which is a much 

 more branching plant, and to Cyst, cephalornithos (Plate CXVL), 

 which is always known by its differently shaped and pointed air- 

 vessels. 



rig. 1. Cystophora uvifera, — the natural size. 2. Receptacles. 3. Cross- 

 section of a receptacle. 4. A spore. 5. Tuft of antheridia. 6. An an- 

 theridium : — variously magnijied. 



