94 
were the sole survivors of his botanical garden, Walter died in 
1788. ; 
Epidendrum conopseum, Ait.—This, the only tree Orchid in 
our State, ranges from Florida upwards along the coast. Elliott 
records, as its most northern locality, Edding’s Bay, at entrance of 
Port Royal Inlet. I found it many years ago, but only in small 
quantity, not more than ten or a dozen specimens altogether, about 
thirty miles north of Charleston, near the village of Pinepolis, not 
far from Monck’s corner on N. E. R. R. It was growing on Nyssa 
aquatica,in damp Pine woods. This is probably the most Northern 
limit yet discovered. H. W. Ravenet. 
AIKEN, S. C, 
§ 98. Distribution of Preissia commutata, Nees.— My atten- 
tion has been called to a note from Edward 8. Burgess, Panama, 
N. Y., in the September number of the Butterin (Vol. 6, No. 9), 
which contains the statement that this plant is “said in Sullivant’s 
Manual to grow at Lake Superior and Niagara Falls, the only two 
habitats hitherto known in this country,” and adds the newly dis- 
covered habitat at Panama, N. Y. 
I was not aware that this plant is supposed to be so restricted 
in its distribution. I have collected it on the lower as well as the 
upper peninsula of Michigan, and in Wisconsin, on Lakes Huron 
and Michigan, as well as on Lake Superior, at which last mentioned 
place it is most abundant. On referring to my notes I find the fol- 
lowing records of localities of the plant: On Lake Superior, on 
sandstone rocks at Laughing-Fish River, Michigan, June 14, 1867; 
and at Eagle River, Mich., Sept. 10, 1871; beside a number of 
places of which I have no record. On Lake Michigan; on rocks, 
White-Fish Bay, Wisconsin, June, 1866. On Lake Huron; Port 
Austin, Michigan, June 18, 1872, on Sandrock, and Pointe Détour, 
Michigan, on rocks, Sept. 19, 1875. It is worthy of mention that 
Pointe Détour is thickly strewn with drift boulders, some of a large 
size, brought from Lake Superior and northward, and here depos- 
ited by glacial action; and it was on these boulders only that the 
Preissia (probably thus transported from the northward) was 
tound by me. The rock in place belongs to the Niagara Limestone, 
and abounds in the most interesting corals, shells, ete., of that 
group. The plant seemingly prefers sandstone rock. At Port 
Austin, far to the southward of Pointe Détour, the sandstone on 
which this hepatica grows is in place, but it is of a later formation. 
Aplectrum with Coral-like root——I have lately discovered 
(April 9, 1876.) in the woods north-east of Detroit, Mich., two ad- 
joining plants of Aplectrum hyemale, Nutt., having branched and 
toothed coral-like roots, similar to those of the genus Corallorrhiza, 
immediately below the usual bulb or corm, which also had the ordi- 
nary rootlets. Each plant had the green leaf which the species 
sends up in Autumn, The coral-like roots appeared to be parasitic 
on the partly decayed bark of a tree-root. A large number of 
plants of the species (much more than one hundred) taken from the 
same locality at different times, presented no such peculiarity. This 
is an interesting and significant discovery, and, as Prof. Gray (to_ 
