Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
FLORA OF WASHINGTON AND VICINITY. 37<br />
of the country, or from that of the country at large. To institute com-<br />
parisons with other local floras would, of course, carry me much too far<br />
for the general purpose of this pajier, but it is both more interesting<br />
and more practicable to confront a few of the above results with similar<br />
ones drawn from a consideration of a large part of the <strong>United</strong> <strong>States</strong>..<br />
For this purpose, as not only most convenient but as least liable to em-<br />
brace facts calculated to vitiate the comparisons, I have chosen that<br />
portion of the <strong>United</strong> <strong>States</strong> situated east of the Mississippi River and:<br />
for the most part well covered by Gray's Manual of Botany for the<br />
northern jiortion and Chapman's Flora of the Southern <strong>States</strong> for the<br />
southern portion. The plants described in these works are conveniently<br />
collected into one series by the second edition of Mann's Catalogue, pub-<br />
lished under the supervision of the authorities at Cambridge in 1872..<br />
Many changes have since been made in the names, &c., and a few new<br />
species added, but these are not sufficient to affect the general conclu.-<br />
sions to be drawn from the following comparative tables.<br />
Comparison of Species and Varieties.<br />
The number of species and varieties of vascular plants enumerated<br />
in the work above referred to is 4,034, of which the 1,249 of the flora of<br />
Washington constitute 31 per cent. The comparison by groups is as<br />
follows<br />
PolypetalsB<br />
GamopetaliB<br />
:<br />
Total DichlamydejB<br />
Monochlamydeae (Apetalse).<br />
Total Dicotyledons<br />
Monocotyledons (Endogens)<br />
GymnospermsB<br />
Total Phsenogamia<br />
Cryplogamia<br />
Total Vascular Plants.<br />
.<br />
Series, Classes, and Divisions.<br />
Comparison of Oenera.<br />
—<br />
Species and varieties<br />
in the<br />
PS<br />
el<br />
©02<br />
1,115<br />
1,314<br />
2,429<br />
349<br />
2,778<br />
1,034<br />
28<br />
3,840<br />
194<br />
4,034<br />
356<br />
389<br />
745<br />
124<br />
869 [<br />
331 1<br />
1,207<br />
42<br />
1,249<br />
31<br />
32<br />
7 25<br />
The whole number of genera in the flora of the Eastern <strong>United</strong> <strong>States</strong>-<br />
is 1,0G5. That of the Flora Columbiana, as already stated, is 527. This<br />
is over 49 per cent., a much larger proportion than was shown by a com-<br />
31<br />
22
Change language