TILLACEAE 267 



ment to species-splitters (e.g., Crataegus), and several species sen- 

 sitive to fire (e.g., Sassafras, Pritiuis scrotiiia) , they have shown 

 hardly any weedy tendencies as yet. (If they ever do the taxo- 

 nomic difficulties will be increased.) 



My records of their distribution in Alabama are as follows : 



lA. Bluffs on south side of Mussel Shoals, Colbert County. 



IB. Jackson, Madison, Morgan and Franklin Counties. Blount County 

 (Mohr). 



2A. Cullman County (Mohr). Chandler Mountain, St. Clair County. 

 West slope of Lookout Mountain near \^alley Head. 



2B. Fayette, Jefferson and Tuscaloosa Counties. 



3. Etowah, Blount and Talladega Counties. 



4. Mountains north of Pyriton, Clay County. 



5. Cleburne, Clay, Chilton and Elmore Counties. 

 6A. Tuscaloosa, Bibb and Elmore Counties. 



6C. Hale and Autauga Counties. 



7. Greene, Sumter, Marengo, Dallas, Autauga and Montgomery Coun- 

 ties. 



8. Montgomery, Bullock and Russell Counties. 

 lOE. Pike, Coffee, Dale and Geneva Counties, 

 low. Frequent throughout. 



11. Choctaw, Washington and Clarke Counties. 



For the benefit of persons who may hereafter be able to dis- 

 tinguish the different forms of Tilia better than the present writer 

 can, the following fragmentary notes on the local distribution of 

 some of the supposed species and varieties is given. They are 

 based mostly on Sargent's Manual and Sudworth's Check List, sup- 

 plemented by oral information given by Mr. W. W. Ashe during 

 a visit to Tuscaloosa in August, 1936, and the paper by B. F. 

 Bush, cited in the bibliography. 



Tilia leucocarpa, Ashe (T. nuda, Sarg.). Mostly in the 

 central portions. Dallas County (Cocks). Near Greensboro and 

 Demopolis (Bush). 



T. leucocarpa glaucescens (Sarg.) Bush. Bibb and Dallas 

 Counties. 



T. australis, Small. Mostly in the Sand Mountain section. 

 Also in Coosa County (Ashe). 



T. Floridana, Small. Jackson (an old specimen cited by 

 Bush). 



T. Floridana Alabamensis, Ashe (T. P. oblongifolia, 

 Sarg.). Birmingham and northeastward (Ashe). Dallas County 

 (Cocks). Near Boligee and Greensboro (Bush). 



T. neglecta, Spach. Lauderdale County (Ashe). 



