934 BOTANICAL EXCURSION 
to be the Asplenium Adiantum-nigrum of Michaux, the A. 
montanum (Willd.), an extremely rare plant. It is certainly 
distinct from the A. Adiantum-nigrum ; being not only a much 
smaller and more delicate species, (two to four inches high), 
but the fronds are narrower, the pinna ovate, and much 
shorter, 3 —5 parted, with the pinnule toothed or incised at 
the apex. The Veratrum parviflorum (Michx.) is of fre- 
quent occurrence throughout this region, but was not yet 
fully in bloom; so that our specimens were not collected 
until near the end of July. "The plant is excellently described 
in the Flora of Michaux; where it is, probably with justice, 
referred to Veratrum, rather than to Melanthium ; since the 
divisions of the perianth (yellowish-green from the first), are 
wholly destitute of glands, and only differ from Veratrum in 
being stellate, and tapering at the base. I may here remark 
that the name, Melanthium, must undoubtedly be retained for 
M. Virginicum and M. hybridum. Some years since, in 
rearranging the North American species of this family, I 
followed Roemer and Schultes in adopting the genus Leiman- 
thium of Willdenow, without considering that Melanthium 
was established by Clayton and Gronovius on M. Virginicum, 
. and thus taken up by Linnæus with the addition of a Sibe- 
rian plant, which belongs to Zigadenus.* The Melanthium 
Capense, (Androcymbium, Willd.) was added some time after- 
wards. 
The rocky summits of the mountains afforded us Sedum 
lelephioides ; Heuchera villosa ; Paronychia argyrocoma, which 
forms dense silvery tufts on the highest and most exposed 
peaks; Veronica officinalis, ivt e and agrestis (all 
certainly native) ; Lycopodium rupestre, in a very beautiful 
state, and on the Phenix Mountain we found a solitary spe- 
cimen of L. Selago ; Arabis lyrata, with perfectly accumbent 
e Helonias glaberrima, (Bet. PNE t. 1680), on which Zigadenus commu- 
tatus e Schultes), is founded, is Z. glaucus ; H the e specimens came from Fra- 
ser's nursery, but doubtless were not derived from the southern States. Helo- 
nias bracteata, (Bot. Mag. t. 1703), is Z. glaberrimus, (Michz.), not fully 
developed. 
