G J 
Vol. VI, No. 18.]° BULLETIN OF THE TorREY BoTanicaL CLus. [New York, June, 1876. 
§ 97. Some more rare Southern Plants. 
Indigofera Anil, Linn.—Introduced over a century ago for In- 
ge elves, and still surviving on old settled places along the sea- 
ound, 
Conyza ambigua, DC.—This plant, common enough in the 
streets of Charleston and on old places thirty or forty miles around, 
is C. sinuata, Ell Introduced. 
Rudbeckia? Porteri, Gray.—I found this species in 1848 at 
Stone Mt., Ga., growing abundantly on the ridges and top of the 
mountain with Quercus Georgiana. Prof. T. C. Porter had just 
preceded me in its discovery and the uncertain genus was dedicated 
to him. I have never heard of it any where else. 
This outlying granitic peak in middle Georgia seems to have an 
interesting Flora. Besides Quercus Georgiana and Rudbeckia? 
Porteri, I found a well-marked variety of Hypericum prolificum, 
and Mr, Canby has since (in 1869) found a new species of JZsoetes 
growing in shallow pools on the summit. 
Carya oliveformis, Nutt.—This species, a native of the §, 
Western Gulf States, is thoroughly naturalized on the seaboard re- 
gion of this State. I have seen ten old trees which were said to be 
the original planting over a century ago, with a diameter of some 
three or four feet. They have been propagated spontaneously as 
well as by hand of man, grow vigorously and bear fruit abund- 
antly. It is a curious fact, however, that seedlings oftener produce 
a nut more closely resembling C. aquatica (common in the swamps 
around) than the original Pecan. Is this the result of true hybridi- 
_ ty ?—or, only of a strong tendency to variation, developed in a re- 
gion of country where C. aquatica is the native type? _ 
Juniperus communis, Linn.—This tree is not accredited south 
of New Jersey in any of our botanical books. A few years ago I 
found two patches of the prostrate form growing on poor sandy hills 
abont two miles south-west of Aiken. This spot is in virgin forest 
of Pine, Oak, &c, and there are no signs of clearing or of former 
cultivation, by which their introduction may be traced to hand of 
man. The plants are strictly prostrate, some of the limbs eight to 
ten feet long. trailing on the surface without any assurgency — 
towards the extremities. Strange that the Alpine form of a tree 
which grows one thousand miles north, should be found here, flour- 
ishing on these warm sand hills! 
_ Mercurialis annua, Willd.—I found this plant many years ago, 
ik te very luxuriantly near the wharves in Charleston. Intro- 
uced, 
Stillingia sebifera, Mx.—This exotic from the East, is now 
thoroughly naturalized around Charleston, and for some forty or 
fifty miles distant. Many years ago, visiting the former residence 
of Thomas Walter, the. author of Flora Caroliniana, on the Santee 
River, I saw there two clusters of this tree, bearing marks of old 
age. They had successfully resisted the encroachments of the sur- 
rounding vegetation, and, together with one or two other plants, 
