our plant, but usually their peculiar ramification sufficiently marks 
these species. 
P. Grifithsiana was discovered by Mrs. Griffiths m 1837, and 
has not since been found at Torquay. But I have had the 
satisfaction of receiving a specimen from Miss White from the 
Isle of Portland, agreeing in all essential characters with the 
Torquay plant. I have not compared either with continental 
specimens, and possibly this plant may be found under some 
other name in the works of continental botanists. As far as we 
yet know, however, it is confined to the south shores of England. 
Fig. 1. PotystpHonta GRIFFITHSIANA :—of the natural size. 2. One of the 
secondary branches and portion of a primary branch. 38. Ceramidium 
attached to a ramulus. 4. Joints from the stem. 5. Transverse section of 
the stem :—all more or less magnified. 
