Trees for Shade and Ornament 200 
trary size, we may repeat that the definition of a tree which 
the writer made many years ago, and which Professor Sargent 
adopted for his Silva has been followed. This recognizes 
as trees all woody plants which grow in nature as a rule with 
a single stem, bearing a definite crown. Where, however, 
a genus furnishes shrub forms as well as trees, these have 
also been briefly referred to in the tree list. 
The height of trees varies greatly according to conditions 
of growth, hence only an approximation to the usual 
maximum dimensions can be given. We designate as tall 
trees, those over 75 feet in height; medium size, from 25 to 
75 feet; low, from 10 to 25; dwarfs, below 10 feet. 
For ready reference we give an alphabetical list of 
the genera and species enumerated, the numbers in paren- 
thesis preceding the species-name coinciding with those of 
the species discussed in the following pages. Varieties are 
placed in parenthesis. 
A. CONIFERS. TREES WITH NEEDLE-~SHAPED LEAVES 
ABIES (23) amabilis, (24) grandis, 
(25) magnifica, (26) nobilis, 
(27) balsamea, (28) Fraseri, (29) 
pectinata, (30) concolor, (31) 
Nordmanniana, (32) Cepbha- 
lonica, (32a Appollinis), (33) 
Pinsapo, (34) Cthecica, (35) 
Vewichit, (36) homolepis. 
nana), 
aurea). 
CRYPTOMERIA (17) Japonica. 
CUNNINGHAMIA (22) Sinensis. 
CupREssts (4) sempervirens, 
(4a  fastigiata), (5) macro- 
carpa. 
GINGKO (37) biloba. 
(10d, pygm@a), (roe, 
CEDRUS (1) Atlantica, (1a, glauca), 
(1b, fastigiata), (2) Libani, (3) 
Deodara. 
CEPHALOTAXUS (83) Fortunet. 
CHAMAECYP ARIS (Retinispora) 
(6) spheroidea (thuyoides), (7) 
Lawsoniana, (8) Nootkensis, 
(9) obtusa, (10) pisifera, (10a, 
plumosa), (10b, squarrosa), (106, 
Junrperis (16) Virginiana. 
LARIX (43) decidua, (44) laricina 
(Americant), (45) occrdentalts, 
(46) Lyallii, (17) lepiolepts. 
LIBOCEDRUS (14) decurrens. 
Price. (71) eacelsa, (72) rubens 
(73) alba, (74) pungens, 
(75) orientalis, (75a Kosteriana), 
(75b Parryana), (76) polita. 
