Harfer : Explorations in Georgia 1903 



153 



ihut up immediately, enclosing a large bubble of air which keeps 

 the interior dry, and at the same time gives the flower buoyancy 

 to rise to the surface again. This perhaps does not happen often 

 in nature, but the experiment may be performed repeatedly with 

 the same flower.* 



Aristida condensata Chapm. 



Collected on Sept. lo on the sand-hills of Gum Swamp Creek 



on the western border of Montgomery County (//<?. 19S2), and 



5een later in the same month on the sand-hills of the Altamaha 



River in Liberty and Mcintosh counties, and of the Little Satilla 



Figure 3. Selagmella acanthonofa {no. 19S7) on sand-hills of Little Ocmulgee 

 River^ Sept. 10. Photograph taken in dry weather, when the stems were all more or 



less incurved. 



in Wayne County near Hortense. Previously reported only from 

 Florida. 



* Since the above was written I notice that the same observation has already been 

 imade by Professor Hitchcock (Proc. Iowa Acad. Sci. g : 215, 1902), But as his 

 Jiote is likely to be overlooked this may as well stand. 



