184 



Pentstemon disscctus Ell. * Elliott describes the leaves as " slightly 

 glaucous underneath," but they appear more so in the dried 

 state than when living. For the present it seems best to treat 

 this bright-green plant as a variety rather than a species, since 

 its chief character is scarcely distinguishable in herbarium speci- 

 mens. 



The nomenclature and known distribution of these three plants 

 may be summarized as follows : 



Mesadenia Elliottii 



^''Cacalia ^2;^/^ Walt"; Ell. Bot. S. C. & Ga. 2: 310. 1822. 



T. & G. Fl. N. A. 2 : 435. 1843 ; Chapm. Fl. S. U. S. 244. 



i860; Wood, Class-Book, 463. 1861 ; Gray. Syn. Fl. i" : 



395. 1884. 

 ''Mesadenia ^z/rt/« (Walt.) Raf." Small, Fl. S. E. U. S. 1301. 



1903. 



Grows mostly in damp woods, ranging from Georgia and 

 Florida to Louisiana in the coastal plain. Elliott said of it : 

 " Grows in the western parts of Georgia. f Common in the high- 

 lands near the Alabama." Wood reported its having been col- 

 lected in the vicinity of Macon, Ga., by Dr. Mettauer. Dr. 

 Mohr reported it from Lee and Montgomery counties in the 

 Cretaceous region of Alabama, which is probably just about 

 where Elliott saw it. In Georgia I have seen it in the counties 

 of Houston, Early and Berrien {jio. 1701), and only in places 

 where the Lafayette formation seems to be absent. I have ex- 

 amined the following specimens besides my own : 



Georgia : Without further data, Boykiii. " Clearing in edge 

 of swamp near Smithville," Aug. 26, 1901, A. //. Ciirtiss 

 {no. 6884). 



Florida : Middle Florida, Cliapniaii {no. J2ji). 



Alabama : Vicinity of Auburn, Lee Co., .several collections 

 by Jiarlc and others, without indication of habitat. 



Mississii'i'i : Mendenhall, Simpson Co., Aug. 18, 1903 (with- 

 out further data), 5. M. Tracy {no. 86yi). 



*See Bull. Torrey Club 32 : 166, 167. 1905. 



t Presumably near the fall-line, and jirobably not far from Columbus. .See Bull. 

 Torrey (^lul), 31 : 12. 1904. 



