652 TRAVEL IN EUROPE AND AMERICA. [1875, 
I think I hinted to you that I found two Cras- 
sulacee on Stone Mountain, both annual. 
One, most abundant on the lower slopes, is glaucous- 
green, and has bright white flowers. The pods show 
it to be a true Sedum. I send a small specimen. 
Note the blunt pods and short style. This — as shown 
by a bit of fruit in my herbartum — is Sedum pusil- 
lum, Michx.! 
The other is dull purple in general hue, smaller, 
grows only well up the mountain, abounds in a small 
form on the very top, and is rather later; but I 
make out the dehiscence, and it is Diamorpha pusilla, 
Nutt. ! 
The specimens you sent to me are this, larger and 
later than any I got. But, as you directed me to the 
base of the mountain for Diamorpha, you must have 
got this too. Your specimens have full-grown fruit. 
Look at them and see if the larger ones have not the 
regular dehiscence down the side of Sedum, and let 
me know. 
May 12, 1875. 
Thanks for your letter and the Sedum. 
Now for another find. The moment J set eyes on 
the Arenaria of Stone Mountain, I said, Ho! here is 
A. brevifolia, Nuttall, of which I had only a single 
stalk in herbarium. Comparing now, | was right, and 
Nuttall says his specimen is from Tatnall County 
(which is strange, that being in southeast Georgia). 
The question remains, Is it only a low-country form 
of Arenaria glabra ? 
Your specimen — with fruit — and M. A. Curtis’s! 
1 Moses Ashley Curtis, D. D., 1808-1872. Born in NO. tie 
Mass. ; early remoyed to the South ; lived near Hillsbo 
botanical studies were largely on F 
