
ADJACENT TO HORTICULTURAL HALL, 15 


abe fan we have placed under dies, which, for our purpose, may 
defined thus : 
Abies. Leaves flat and 2-ranked, or scattered, and more or less plainly 
4-angled; cones drooping, and scales not falling away. 
Abies alba, Michaux. WHITE or SINGLE SprRucE. (Pinus alba, Aiton; 
Picea alba, Link.) Tree §0 feet high; leaves glaucous green, % to 3¢ of an 
inch long; cones I to 2 inches long, oblong or cylindrical. Hardy and hand- 
some. United States and far northward. This is different from Adzes alba, 
Miller, which is Picea pectinata, the common Silver Fir of the Alps. 
There are the following varieties: glauca, P/umd/y ; tree full size; leaves 
white, silvery. minima, Avight. SMALLEST SPRUCE; leaves thickly set, 
spreading, glaucous. nana, Loudon; a dense dwarf bush, 3 to 4 feet high. 
Abies Alcockiana, Zindley and Veitch. Awcock’s Spruce. (Pinus Al- 
coguiana, Parlatore; Picea Alcockiana, Carriere.) Tree 100 feet high; 
leaves small; branchlets rough; cones reddish, pendulous, 2 to 3 inches long. 
Japan, on the sacred mountain of Fusi-Yama, at an altitude of 6000 to 7000 
feet. 
Abies Brunoniana, Zind/ey. INDIAN HEMLOCK-SPRUCE. (Pinus dumosa, 
Don; Abies dumosa, Loudon; Tsuga Brunoniana, Carriere; Picea Bruno- 
niana, Spach.) India, 70 to 80 feet high. Hardy here. 
Abies Canadensis, A/ichaux. HErMLOCK-SpRUCE. (Pinus Canadensis, 
Linneus ; Picea Canadensis, Link ; Tsuga Canadensis, Carriere.) Large tree, 
the pride of our cooler forests, with a straight trunk and drooping branch- 
lets; cones small; leaves bright green on the upper surface and grayish white 
on the lower. Hardy and well adapted for ornamental planting. Ranges from 
Hudson Bay to the mountains of North Carolina, and in Northern regions, far 
to the westward. Timber only second-rate. Under this species we have the 
varieties—microphylla, Zind/ey ; a hardy dwarf, leaves small, dark green, 
and rough on the edges. Milfordensis, Young, dwarf, globular in form; 
shoots slender, drooping; leaves smaller than in the species. nana, Lawson ; 
2 to 3 feet high; foliage spreading tufty. Besides these are enumerated— 
hemispharica, Hoopes ; inverta, Hoopes; nana nigra, Hoopes; pendula; Sar- 
genti; Shotwelliana ; variegata. 
Abies Douglasii, Zind/ey. Doucias’ Spruce. (Pinus Douglasti, Sabine 
MS. ; Tsuga Douglasti, Carriere; Pseudotsuga Douglasii, Carriere. See En- 
gelmann, in Wheeler’s Report, vol. vi. p. 257.) Tree which on the coast of 
Oregon and adjacent region attains a height of 300 to 350 feet, with a corre- 
sponding diameter. In mountain-regions from Colorado to Mexico it is smaller, 
though still a giant. Hardy, and has produced among others the follow- 
ing varieties: fastigiata, Awigh‘; conical, compact, branches ascending. 
* pendula, Parlatore? which is the Adies taxifolia pendula of the gardens. 
Smaller shoots pendulous. * Standishiana, Gordon; foliage “ large, dark 
glossy green, silvery below.” * Stairii, //ort.; variegated leaves of a silvery 
whiteness. taxifolia, Loudon ; 30 to 40 feet high; leaves longer and greener 
than those of the species. From mountains of Mexico, 

1 The nomenclature of the Coni/era is so confused that we are obliged (most reluctantly) 
to quote the more important synonymes, thus taking space which more willingly would have 
been devoted to a fuller description of the trees themselves. 
