Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
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40 FLORA OF WASHINGTON AND VICINITY.<br />
Series, Classes, and Divisions.<br />
Pol.\-petalaB<br />
Gamopetalae<br />
Total Dichlamydea) .<br />
Monochlamydese<br />
Total Dicotyledons . .<br />
Monocotyledons<br />
Gymnospermse (ConiferiB)<br />
Total Phfenogamia<br />
Cryptogamia<br />
.<br />
Total "Vascular Plants<br />
Number of orders.<br />
Essex<br />
County.<br />
103<br />
5<br />
108<br />
Plora<br />
Columbiana.<br />
112<br />
4<br />
Number of genera.<br />
Essex<br />
County.<br />
155<br />
158<br />
313<br />
44<br />
357<br />
120<br />
7<br />
484<br />
20<br />
Flora<br />
Columbiana.<br />
174<br />
169<br />
343<br />
47<br />
390<br />
112<br />
4<br />
506<br />
21<br />
527<br />
Number of species<br />
and varieties.<br />
Essex<br />
County.<br />
360<br />
358<br />
718<br />
132<br />
850<br />
392<br />
17<br />
1,259<br />
65<br />
I<br />
Flora<br />
Columbiana.<br />
I<br />
356<br />
389<br />
745<br />
124<br />
869<br />
331<br />
7<br />
1,207<br />
42<br />
1,324 1,249<br />
The 16 large orders enumerated on page 35 may also be compared with<br />
profit<br />
:<br />
1 Compositaj<br />
2 Gramineas<br />
Cyperaceae<br />
' 4 Leguminosae<br />
5 Eosaceae<br />
6 Labiatae<br />
7 Cruciferae<br />
8 Scrophulariaceae<br />
9 Filices<br />
10 Ranunculaceae ..<br />
11 Ericaceae<br />
I 12 Cupuliferae<br />
' 13 Orchidaceae<br />
14 Liliaceae<br />
j<br />
15 Polygonaceae<br />
I<br />
16 UnibelliferaB<br />
I<br />
Orders.<br />
Number of genera.<br />
Essex<br />
County.<br />
43<br />
50<br />
9<br />
17<br />
12<br />
22<br />
14<br />
14<br />
13<br />
9<br />
18<br />
6<br />
13<br />
18<br />
3<br />
16<br />
Flora<br />
Columbiana.<br />
Number of species<br />
and varieties.<br />
Essex<br />
County.<br />
136<br />
128<br />
120<br />
39<br />
55<br />
35<br />
29<br />
29 I<br />
40<br />
30 I<br />
37 I<br />
16<br />
32<br />
27<br />
27<br />
20<br />
Flora<br />
Columbiana.<br />
In the flora of Essex County the orders Umhelliferce (20) and Ctipu-<br />
liferw (16) fall below the lowest of the 16 for the flora of Washington<br />
{Umhelliferce^ 22), while on the other hand the Caryopliyllacece (27)^<br />
Salicacew (23), and Naiadacew (28), not in the list, rise above that num-<br />
ber. These orders in the flora of Washington are represented respect-<br />
ively by 19, 19, and 9 species and varieties. With reference to the last<br />
named of these orders, however, it may be remarked that the genus<br />
Potamogeton, which constitutes the greater part of it, has been very im-<br />
perfectly studied here, and will certainly be largely increased when<br />
thoroughly known.<br />
The orders in which this flora falls below that of Essex County are:<br />
the Graminew^ Gyperacece, Bosacece, Filices, Rammculacea\ EricacecCy<br />
Liliacea\ Orchidacecv, and Polygonacecv, nine in all. In the remaining<br />
seven orders there is a greater number of species here than there. It is<br />
149<br />
110<br />
108<br />
57<br />
46<br />
42<br />
33<br />
32<br />
30<br />
27<br />
26<br />
26<br />
24<br />
24<br />
23<br />
22
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