332 



are crested. The lengths of numerous achenes vary from 1.5-2 

 mm. 



Arenaria brevifolia Nutt.; T. & G. Fl. N.A. i : 180. 1838. 



I have long suspected the occurrence of this, the rarest of our 

 eastern American Arenanas, in North Carolina. In 1890 Mr. 

 Heller collected fragmentary and imperfect specimens of an 

 Arenaiia in Rowan County. Some years later I found similar 

 specimens on Dunn's Mountain, near Salisbury. During the 

 spring of 1896 I had an opportunity to visit Dunn's Mountain 

 and found the species in full bloom just as it occurs on Stone 

 Mountain, Georgia; the plants from the two mountains are al- 

 most identical. 



Rhexia Mariana L. Sp. PI. 346, 1753. 

 As far as I have observed, i?//^;r/« Mariana prefers sandy places 

 at no great distance from the Atlantic and Gulf coasts, although 

 it does occur at many points in the middle districts of the 

 Southern States, and is said to extend up the Mississippi Valley to 

 Missouri. The first altitude worthy of note at which I found the 

 species was at about 300 meters on Stone Mountain, Georgia. The 

 following year, 1895, I collected a few specimens of a delicate 

 form, apparently referable to this species, on the mountains near 

 Ellijay, Gilmer County, Georgia, at an altitude of about 400 

 meters. The leaves of this form are thin, oval, ovate or elliptic 

 and short-petioled. Much to my surprise, on reaching the 

 summit of Table Mountain, South Carolina, last summer, I found 

 the typical state of the plant thriving at an altitude of almost 1000 

 meters. 



Sabbatia campanulata (L.) Britton, Mem. Torr. Club, 5: 259. 1894. 



Dr. Gray has recorded * the mountains of Georgia as an ex- 

 tension of the range of this normally coast plant. I do not know 

 to how great an altitude the species ranges in Georgia, but I have 

 collected it at an elevation of nearly looo meters on the summit 

 of Table Mountain, South Carolina, and the only noticeable differ- 

 ence between the mountain specimens and those from the low- 



*Syn, Fl. 2: Part i, 115. 



