780 
MONCECIA TRIANDRIA. 
Class XXI. 
1952. TRIP'SACUM. W. Tripsackm. 
13177 dactyloides W. rough-seeded ^ A un 
13178 monostachyon W. single-spiked M A un 
13179 hermaphroditum^. hermaphrodite M O un 
1953. HETEROPO'GON. Rich. 
13180 glaber Rich. smooth 
1954. OLY'RA. W. 
13181 paniculata W. 
Heteropogon. 
M A un 
Olyra. 
broad-leaved M [Z3 
Graminets. 
4 au Ap 
2 au Ap 
2 au.s Ap 
Graminets. 
2 au Ap 
Graminece. 
3 jl Ap 
Sp. 3—4. 
Virginia 1640. 
N. Amer. 1815. 
Jamaica 1776. 
Sp. 1—2. 
Switzerl. 
D p.l 
D p.l 
D p.l 
Lam. ill. t. 750 
W. hort. ber. t.l 
1800. D CO All. ped. t.91. f.4 
Sp. 1—4. 
W. Indies 1783. Sk s.p SI. jam. l.t.64.f.2 
TETRANDRIA. 
1955. AL'NUS. W 
13182 glutinosa W. 
(2 lacinidta 
13183 oblongata W. 
(i elliptica 
13184 incana^ W. 
/S anguldta 
13185 undulata W. 
13186 serrulata W. 
13187 cordifolia Ten. 
1956. BE'TULA. W. 
13188 alba W. 
13189 pen'dula Roth. 
13190 populifolia W. 
13191 excelsa W. 
13192 daurica W. 
13193 nigra W. 
13194 lanulosa Mich. 
13195 papvracea W. 
13196 lenta W. 
carpinifolia Ehr. 
13197 nana W. 
13198 pumila W. 
13199 pontica Hort. 
13200 ovata W. 
13201 fruticosa IV. 
13202 pubescens Ehr. 
1957. BUX'US. W. 
13203 baiearica W. 
13204 sempervirens W. 
(3 a7igusf/f6lia 
y stiffruticosa 
13205 cliinensis Link. 
13177 
Alder. 
Amentacecs. 
Sp. 6—9. 
common 
X 
ec 
25 
mr.ap 
Ap 
Britain wat.pl. L 
m.s 
Jltilg. uOt. lOUo 
ciit'led ved 
3t 
25 
mr.ap 
Ap 
Britain 
L 
m.s 
vv lUQ. aru. 
oblong-leaved 
3t 
20 
jl 
Ap 
S. Europe 1730. 
L 
or 
20 
jl 
Ap 
L 
ra s 
hoary-leaved 
=v 
or 
20 
jn 
Ap 
Europe 1780. 
L 
1 ti 
i.p 
Elm-lenvcd 
1 
or 
20 
jn 
Ap 
L 
Ip 
curl-leaved 
t 
t 
or 
20 
my.jn 
N. Amer. 1782. 
L 
1.? 
notch-leaved 
or 
20 
mr 
Ap 
N. Amer. 1769. 
L 
l.p 
Abb. ins. 2. t. 92 
heart-leaved 
or 
20 
my.jn 
Ap 
Naples 1818. 
L 
CO 
13IRCII. 
Amentacece. 
Sp. 15—19. 
common 
tm 
40 
ap.jn 
Ap 
Britain moi.w. S 
CO 
weeping 
1 
or 
40 
ap.jn 
Ap 
Britain woods. 
S 
CO 
Poplar-leaved 
or 
30 
jl 
Ap 
N. Amer. 1750. 
L 
CO 
Mich. arb. 2. t, 2 
tall 
tm 
60 
my 
aP 
N. Amer. 1767. 
S 
CO 
Dend. brit. 95 
Daurian 
tm 
30 
jl 
Ap 
Siberia 1786. 
L 
CO 
Pall. ross. 1. t.39 
red 
tm 
60 
jl.au 
Ap 
N. Amer. 1736. 
L 
CO 
Dend. brit. 153 
woolly 
tm 
70 
jl.au 
Ap 
N. Amer. 1817. 
L 
CO 
paper 
i 
tm 
50 
jn 
Ap 
N. Amer. 1750. 
L 
CO 
Willd. arb.t.2.f.l 
soft 
tm 
50 
jl 
Ap 
N. Amer. 1759. 
L 
CO 
Dend. brit. 144 
smooth-dwarf 
cu 
8 
my 
Ap 
Scotland moi.h. 
L 
CO 
Eng bot. 2326 
hairy-dwarf 
or 
6 
ap.my 
Ap 
N. Amer. 1762. 
L 
s.p 
Jac. vind.2.t.l22 
Pontic 
or 
12 
ap.my 
Ap 
Turkey 
L 
s.p 
Dend. brit. 94 
ovate 
or 
15 
ap.my 
Ap 
Hungary 1820. 
L 
CO 
Dend. brit. 96 
shrubby 
or 
6 
ap.my 
Ap 
Siberia 1818. 
L 
CO 
Dend brit. 97 
pubescent 
It 
or 
30 
ap.my Ap 
Germany 1812. 
L 
CO 
Box Tree. 
Euphorhiacece. Sp. 3. 
Minorca 
or 
8 
jl 
Y.G 
Minorca 1780. 
C 
CO 
common 
or 
8 
ap 
Y.G 
England ch.hil. C 
CO 
Eng. bot. 1341 
nm'row-leaved 
or 
8 
ap 
Y.G 
C 
CO 
dwarf 
St. 
or 
1 
Y.G 
Sk CO 
Chinese 
SI 1 1 or 
3 
n 
Y.G 
China" 1802. 
C 
CO 
History, Use, Propagation, Culture, 
1952. Tripsacum. So called by Linn£Eus, from r^iQa, to bruise or crush, in allusion to the purpose to which 
its grain may be applied. Forage grasses of the West Indies. 
1953. Heteropogon. From i-n^o;, various, and ■zajycav, a beard ; in allusion to the various kinds of awns with 
which the flowers are furnished. 
1954. Olyra. A name under which Homer speaks of a grain which was used as the food of horses, and 
which has been thought analogous to Barley. The plant now so called is a native of America, and has no 
resemblance to that of the ancients. 
1955. Alnus. From the Celtic word al, near, and Ian, the edge of a river, in reference to the places where 
the species grow. A. glutinosa, Aulne, Fr., Ellcr, Ger., and Alno, Ital., is a well known timber tree, which will 
grow in marshy situations. The timber is applied to a variety of purposes, and in general for all works in- 
tended to be constantly under water, for turnery and furniture. The bark is used by dyers and tanners ; the 
sap being of a yellow color and very astringent. There is a variety with cut leaves sold by the nurserymen as 
an ornamental tree, though it is more curious than showy. 
1956. Betula. ^^^m is the Celtic word for the Birch. Bouleau, Yr., Birch enbaum, Ger., and Betulla, Ital. 
B. pendula is the most graceful tree of the genus ; it grows both in mountainous situations and bogs, 
from Lapland to the subalpine parts of Italy and Asia. B. lenta, the mahogany birch, mountain mahogany, 
or cherry birch of Canada, abounds in the middle states of Pennsylvania, New York, and the Jerseys ; but dis- 
appears altogether in the higher latitudes of the northern states. It is thought a very fit tree for planting in 
the valleys of the mountainous districts of Britain. Its growth is rapid, and the timber is close grained, 
beautifully variegated, and well adapted for cabinet work. The leaves, which appear early in spring, possess 
