998 BOTANICAL EXCURSION 
stems, rising from a thick rhizoma (and clothed below, as 
well as the petioles, with deciduous rusty hairs), are termi- 
nated bya panicle of small cymes, which at first are crowded, 
but at length are loose, with the flowers mostly unilateral. 
The rather large pure white petals are deciduous after inflo- 
rescence, not marcescent as in Saxifraga and Heuchera. We 
did not again meet with this plant; but Mr. Curtis collected it 
several years ago near the head of Linville River, and Mr. 
Buckley obtained it on the mountains of Alabama. It also 
extends further north than our own locality, for although not 
described in his Flora, Pursh detected it on the Salt-Pond 
Mountain in Virginia.* I have little doubt that the Sazi- 
Jraga Richardsonii would be more correctly transferred to 
Boykinia, as well as the S. ranunculifolia; and since the 
S. elata of Nuttall, in Torrey and Gray’s Flora, is referred 
to Boykinia occidentalis in the Supplement to that work, no 
pentandrous Sazifrage remains, except the ambiguous S. Sul- 
livantii, (Torr. et Gr.) But the authors of the Flora, having 
received fruiting specimens of this interesting plant, do not 
hesitate to remove it from the genus to which it was provi- 
sionally appended, and to dedicate it to their esteemed cor- 
respondent, the promising botanist who discovered it.t While 
descending the mountain on the opposite side, we met with 
ethra acuminata, a very distinct and almost arborescent 
* The specimen in Professor Barton’s Herbarium (in fruit) is ticketed by 
Pursh, ** Heuchera villosa, Michz.? Salt-Pond Mountain, under the naked knob, 
neara spring. This spring is the highest I have seen." I know not the exact 
situation of this mountain, from which Pursh obtained many interesting species. 
e Boykinia aconitifolia, I may remark, would be a very desirable plant in n cul- 
tivation, and might be expected to endure the winter of New York or Phila- 
delphia. It would certainly flourish in eg 
t SULLIVANTIA. Torrey and Gray, Fl. N. Amer. suppl. ined. Calyz i z inferne 
imo ovario adnatus, limbo quinque-fido. Petala 5, spathulata, unguic culata, 
ü ves g 
Capsula calyce inclusa, bilocularis, birestris polysperma, rostris intus longitu- 
d. dehiscentibus, Semina adscendentia scobiformia, testa membranacea, 
relaxata, utrinque ultra nucleum ovalem alatim producta. Embryo cylindricus 
albumine vix brevior.—Herba humilis, in rupibus calcareis Ohionis vigens; 
radice — osa perenni ; ; enen plerisque vumm rotundato-reniformibus, 
gracili decumbente ; floribus 
