BOTANICAL EXCURSION TO NORTH CAROLINA. 65 
Balsamite, Rudbeckia triloba, and a dwarf variety of A. 
laciniata, Liatris spicata, Cacalia atriplicifolia, Cynthia 
Virginica, Aster acuminatus, Solidago bicolor, S. spitha- 
meea, (Curtis in Torr. & Gray, Fl. ined.,) a very distinct 
dwarf species, S. Curtisii, Torr & Gr. 1. ¢., not yet in flower, 
and S. glomerata in the same state as at Grandfather Moun- 
tain; also Saxifraga leucanthemifolia, Sedum telephioides, 
Heuchera villosa, Polypodium vulgare, the dwarf variety of 
Hedyotis purpurea previously noticed, Scirpus ccespitosus, 
and Agrostis rupestris / which are confined to the rocky pre- 
cipice already mentioned. The only tree is Abies Yraseri, 
a few dwarf specimens of which extend into the open ground 
of the summit; and the following are all the shrubs which 
we observed, namely, Diervilla trifida, Menziesia globula- 
ris, Vaccinium erythrocarpum, Rhododendron Catawbiense, 
forming very dense clumps, Leiophyllum serpyllifolium, Sor- 
bus Americana, two to four feet high, Cratequs punctata 
only a foot in height, Pyrus arbutifolia var. melanocarpa, 
Ribes rotundifolium ; and a low and much branched species 
of Alder, which Mr. Curtis proposes to call Alnus Mitchel- 
liana, in honor of Professor Mitchell; but we fear it may 
prove to be a variety of what we deem the A. crispa, Ait. 
from the mountains of New York, New Hampshire, etc., and 
Newfoundland, although it has more rounded leaves with the 
lower surface nearly glabrous, except the primary veins; while 
in the former (to which the names of A. crispa and A. undu- 
lata are not very appropriate), the leaves are often, but not 
always, somewhat velvety-pubescent beneath. To our list 
must be added any apparently undescribed species of Vacci- 
nium, first noticed by Mr. Constable. We made a hasty 
1 Vaccinium Constablei (spec. noy.): pumilum, foliis deciduis ova- 
libus pallidis subtus glaucis reticulato-venosisque glanduloso-mucronatis 
integerrimis vel obsoletissime serrulatis ciliatis, racemis brevissimis ses- 
silibus, bracteis squamaceis parvis caducis, corollis brevissime cylindricis, 
antheris inclusis muticis, ovariis 10-locularibus, loculis pluri-ovulatis. 
In summo jugo “Roan Mountain” dicto (Tennessee et Carolina Sep- 
tentrionali), ad alt. 6000 pedes. Julio floret.— Frutex 1-3-pedalis, 
erectus, ramis griseo-viridibus teretis. Folia sesqui-biuncialia, lato-ova- 
lia vel elliptica, utrinque szpius acuta, glabra, nisi costa supra puberula 
