BOTANICAE INDEX. 
55 
ascending the tirst one in the order named, Juniperus occidentalis (lowest,) Pinus 
tuberculata , Libocedrus decurrens, Abies Douglassii, Pinus Lambertiana , P . ponderosa var. 
Jeffreyii, Picea grandis, P. amabilis, and P. amabilis var. nobilis; the last named only 
found in the upper portion of the belt. The next zone, or zone of the Silver Firs, is 
from 6,0C0 to 8,000 feet above the level of the sea; is from two to three miles broad, 
and is made up almost exclusively of three Silver Firs, Picea grandis, P. amabilis, and 
P. amabilis var. nobilis; (no plants are given in the list.) The upper zone of vegeta- 
tion, the “Alpine zone,” extends from 8,000 to 9,500 feet, for dwarf pines, Pinus 
flexiles, P. monticola, and P. contorta, and to 11,000 feet for a few dwarf plants, such 
as dwarf daisies, carices, (grass,) etc. The upper portion of the Alpine zone, extend- 
ing to the line of perpetual snow, furnish a few characteristic plants, such as heath- 
worths, still’ wiry carices, (grass,) kalmia, spirea, brvanthus, etc., while beyond the 
point of true vegetation are found lichens, mosses, and red snow, a peculiar form of 
minute Algat-Protococcus, which are found in all high latitudes.” 
But space will not permit of a further discussion of this very interesting subject; 
suffice it to say, that our elevation is so much above the country east and west of us, 
that it will be found to be equivalent to a long distance of space at a lower level — for 
every 1000 feet of elevation is said to equal a degree of latitude, (about 69 miles) ; so 
we shall expect to find in the Miami valley to the east, and the Wabash valley to the 
west of us, a large portion of the tiora that is barely hardy here, is perfectly hardy 
and vigorous a long distance north of us. And on the same latitude of Richmond, in 
these valleys, many a choice tree and shrub will flourish that will not survive a single 
winter here. 
This list is very incomplete, and we would request our friends to make a note of 
anything omitted, and send us, that we may add to and eventually complete the list. 
Amelanchier C anadensis, Service Berry 
Amorpha fruticosa. False Indigo. 
Ampelnpsis quinquejolia, Virginian Creeper. 
Aralia spinosa, Hercules’ Club. 
Cephalanthus occidentalis, Button Bush. 
Clematis viryinica, Virgin's Bower. 
Clematis viorna . Leather Flower. 
Cnrnus asperifolia, Dogwood. 
Cornus flacida. 
Diospyros viryinica, Persimmon. 
Elaeaynus aryentea. 
Euonymus Americana, Wahoo. 
Euonymus atropurpurea. 
Gymnocladus Canadensis, Coffee Nut. 
Halesia tetraptera , Silver-bell Tree. 
Hydrangea arbnrescens. 
Hypericum prolificum . 
Liquidambar styracijiua, Sweet Gum. 
Magnolia accuminata. Cucumber Tree. 
Magnolia umbrella. Umbrella Tree. 
Menlxpermum Canadense, Moonseed. 
Neyundo aceroides. Box Elder. 
Nyssa multiflora, Sour Gum. 
Ostrya viryinica. 
Periploca yrveca , Silk Vine. 
Pyrus coronaria. 
Pirns typhina, Stag-horn Sumach. 
Ribes aureuvi . Missouri Currant. 
Staphylea trifolia. Bladder-nut. 
Wistaria frutescens. 
We have also prepared a list of hardy, introduced or cultivated trees, shrubs, etc., 
that are valuable for planting in this latitude, or even further north, where the ele- 
vation of the country is so much below this that the thermometer registers about the 
same amount of cold. 
Ailantusglandulosus, Tree of Heaven. 
Akebia quinata. 
Ampelopxis tricuspid ata, Japanese Ivy. 
A mygdalix nana, Double White and Red Flow- 
ing A Imond. 
Amygdalus Perxica fol. mib., Blood-leaved Peach. 
A rixto lochia xipho, Dutchman’s Pipe- vine. 
A risto lochia tomentoxa , 
AEhcuIus HipfXfcastanum , Horse Chestnut. 
Azalea pontica. 
Benzoin odorifemim, Spice W ood. 
Buxus sent per virens, 
Colycanthux florid ux , Sweet Shrub. 
Chionantliux virginica , Fringe Tree. 
Corchorus Japonica 
Cytixux laburnum. Golden Chain. 
' Darlingtonia brachyloba. 
Deutzia crenata Jlore-pleno. 
Deutzia. gracili*. • 
Dirca palustrix, Leatherwood. 
Elueagnis liorUn.xi8 , Bohemian Olive. 
Euonytn us radicans. 
Forsythia viridixsiwa , Golden Bell. 
Hydrangea paniculuta. 
J asminwrn nudijlorura. 
Kolreuteria paniculata. 
Ligustrurn vulgare. 
Liguxtrum vulgare folis-aurea . 
Magnolia conspicua. 
Magnolia glauca. 
Magnolia purpurea . 
Magnolia trifollata. 
Mahonia aquifolia . 
Ostrya vulgaris. Hop Tree. 
J'assi flora incarnata. 
Pazonia mo u tan , Tree Pieonia. 
Plumbago Larpentoe. 
Polygonum Sieboldi. 
Primus Armeniaca , Apricot. 
Prunus susp&nsa. 
Prunux vird idixsima. 
Ehus cotinux. Smoke Tree. 
Robinia hixpida , Rose Acacia. 
Poses, in great number. 
Rhododendron maximum . (hybrids.) 
Salisburia adiantifolia , Maiden HairTree. 
Salix Babylonica , Weeping Willow. 
Bpireas , in great variety. 
By mphnri carpus occidentalis , Sno wherry. 
Symjthoricarpus vulgaris , Purple -berry. 
Tamazrix Galica. 
Yibemum opulux , Tree Cranberry. 
Yibernnm xterillis , Snowball. 
Wei gel a rosea. 
Weigela nana. 
Weigela variegata. 
Wistari a Cli in ensis . 
Yucca flllimentosa. 
The following list has been prepared during the past few years from plants, etc., 
that have lived in the open ground during one or more winters, unprotected; hut we 
do not wish to be understood as advertising them as hardy, for they are not hardy 
as a rule : * 
Diplopnypus chrysophillus. Hydrangen Hortensis. Linaria Cymbalaria. Mikania violacea. 
Kuonymus Japonicus, Hedera Helix, Magnolia grandiflora. Physianthus albens. 
