15X 



charge of the river at this point varies from about lOO to 116,000 

 cubic feet a second, and averages about 6,700. As a rule the 

 maximum occurs in March and the minimum in September. 



The rocky bottom projects above the water in many places, 

 and in some of the quieter spots there are deposits of sand and 

 silt; so there is naturally some local diversity in the vegetation. 

 In the following list, however, all the plants found growing in 

 the channel of the river at the shoals are included. They are 

 divided into trees, shrubs and herbs, and those in each group 

 arranged as nearly as possible in order of abundance. The trees 

 are all rather stunted, as might be expected. 



Trees Herbs 



Platanus occidentalis L. Panicum virgatum L. 



Betula nigra L. Hymenocallis coronaria (LeConte) Kunth.. 



Liquidambar Styraciflua L. Dianthera Americana L. 



Salix nigra Marsh. Scirpiis Americanus Pers. 



Shrubs Zizaniopsis miliacea (Mx.) Doell. & Asch. 



Alnus rugosa (DuRoi) Koch Osmunda regalis L. 



Cephalanthus occidentalis L. Triadenuni petiolatum (Walt.) Raf. 



Hypericum galioides Lam. Harperella fluviatilis Rose. 



Ilea Virginica L. Eleocharis mulala (L.) R. & S. 



The occurrence of a Podostemon in such a place would not have 

 been at all surprising, but it was not detected. 



Most of the species listed are rather common and widely 

 distributed, but three or four of them are here some distance 

 from the localities given for them in Mohr's Plant Life of Ala- 

 bama, and two or three deserve special mention. 



The Hymenocallis, although perhaps not quite the most abun- 

 dant herb, was the most conspicuous element of the vegetation 

 at the time, being in full bloom. From a distance its numerous 

 large white flowers gave somewhat the appearance of a thin layer 

 of snow. Up to 1 90 1 this species seems to have been reported 

 only from rocky shoals in muddy rivers just above the fall-line 

 near Columbia, S. C, and Augusta, Ga. In the year named Dr. 

 Mohr (in his Plant Life of Alabama, p. 447) added a third station, 

 very similar to the others, namely, the Warrior River near Tusca- 

 loosa, where it was found by Dr. Eugene A. Smith. That locality 

 having been drowned out several years ago. Squaw Shoals is 



