Torrey Botanical Society

Some More Rare Southern PlantsAuthor(s): H. W. RavenelSource: Bulletin of the Torrey Botanical Club, Vol. 6, No. 18 (Jun., 1876), pp. 93-94Published by: Torrey Botanical SocietyStable URL: http://www.jstor.org/stable/2476150 .

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Vol. VI, No. 18.1 BULLETIN OF THE TORREY BOTANICAL CLUB. [New York, June, 1876.

? 97. Some more rare Southern Plants. Indigofera Anil, Linn.-Introd uced over a century ago for In-

digo culture, and still survivinog on old settled places alonig the sea- bound.

Conyza ambigua, DC.-This plant, common enough in the streets of Chailestonl and on old places thirty or forty nmiles around, is C. sinuata., Ell. Introduiced.

Rudbeckia? Porteri, Gray.-I found this species in 1848 at Stone Mt., Ga., growing, abundclantly on ;the ri(dges and top of the mountain with QuLercus Georgiana. Prof. T. C. Porter had just preceded mne in its discovery and the uncertain genius was dedicated to him. I have niever heard of it any where else.

This otutlying graanitic peak in mildle Georgia seems to have an interesting Flora. Besides Quer cus Georgiaina and Ruidbeckia ? Porteri, I foujncd a well-marked variety of Hypericunm prolieficum, and MJr. Canby has since (in 1869) fouind a new species of Isoetes garowing, in shallow pools oni the summit.

Carya olivaaformis. Nutt.-This species, a native of the S. Western Gulf States, is thorougLhly naturalized on the seaboard re- gion of this State. I have seen ten old trees whieh were said to be the original planitingu over a century ago, with a diameter of some three or fouir feet. They have been propagated spontanieoLusly as well as by hand of m-an, grow vigorously anid bear fruit abund- antly. It is a curious fact, however that seedlinogs oftener prodluce a inuit more closely resemabling C. aqtiatica (common in the swamps aroiu:nd) than the original Pecan. Is this the result of true hybridi- ty ?-or, only of a strong tencdency to variationi, developed in a re- gion of counttry whiere C. aquatica is the native type ?

Jtuniperus communis, Lian.-Thlis tree is not accredited south of New Jersey in any of our botanical books. A few years ago I founcd two patches of the prostr late for m growing, on poor sandcly hills abouit two miles south-west of Aiken. This spot is in virgin forest of Pine, Oak, &c , anrd there are no signs of clearing or of former cultivation, by which their intro(duction may be traced to hand of man. The plants are strictly 9rostraie, some of the limbs eight to ten feet long, tr ailing on the surface -without any assuirgrency to wa r dls the extremities. Str ange that the Alpine form of a tree which grcows one thousand miles niorth, should be found here, flour- ishingo oni these warnm sanid hills

Mlercurialis annua, Willd.-T found this plant m-any years ago, growing very luxuriantly near the wharves in Charlestoni. Intro- duced.

Stillingia sebifera, Mx.-This exotic fromn the East, is now thorougly naturalized around Charleston, and for somiie forty or fifty uliles distant. Maniy year-s ago, visiting, the former residen ce of Thonfas Walter, the auithor of rFloa Carolinian a, oni the Sau-tee River, I sawv there two elusters of this tree, bearii'g marks of old ace. They lha(l successfuilly resisted the encr-oachmlents of the sutr- rotndingo vegetation, and, together with olne or two other plants,

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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 iiorthern locality, Edding's Bay, at entrance of Port Royal Inlet. I found it many years ago, but only in small quanitity, niot more thani ten or a dozen specimens altogether, about thirty miles north of Charlestoin, near the village of Pinepolis, not far from Moniek'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. RAVENEL.

AiizrN, S. C. ? 98. Distribution of Preissia commutata, Nees.- My atten-

tion has been called to a note from Edward S. Burgess, Panama, N. Y.) in the September number of the BULLETIN (Vol. 6, No. 9), which colntains the statement that this plant is " said in Sullivant's Milaual to grow at Lake Superior anid Niagara Falls, the only two habitats hitlherto known in this country," and adds the newly dis- covered habitat at Panama, N. Y.

I w.Is 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, oni Lakes Huroni and Michigan, as well as oll Lake Superior, at which last metntione(d place it is most abuindlant. 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 whichl I have no record. On Lake Michigan; on rocks, White-Fish Bay, Wisconsin, June, 1866. On Lake Huron; Port Austin, MichhianD June 18,1872, on Sandrock, and Pointe Detotir, Michigan, on rocks, Sept. 19, 1875. It is worthy of mention that Pointe Detotur is thickly strewtn with drift boulders, some of a large size, broiug.-ht fiorn 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 nolrthward) was fotnd by me. The rock in place belongs to the Niagara Limestone, and abouinds in the most interesting corals, shells, etc., of that group. The plant seemingly prefers sandstone rock. At Port Auistin, far to the southward of Pointe Detour, 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-Y planits of Aplectraon hyem?,ale, Nutt., having branched and toothecl coral-like roots, similar to those of the genus Ooraltorrhtiza, immediately below the ussual builb or corm, which also had the ordi- nary rootlets. Each plant had the green leaf which the species sends up in Auituzmn. Thie coral-like roots appeared to be parasitic on the partly decayed bark of a tree-root. A large number of planits of the species (un-ch moi-e than onie hundred) taken from the samcie locality at differenit times, presented nlo such peculiarity. This is an interestino and sigmificant (liscovery, and, as Prof. Gray (to

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