CLASSES AND ORDERS OF LINNJEUS. 
33 
' SYNOPSIS OF THE CLASSES AND ORDERS OF LINNJEUS.' 
Number 
of 
Stamens. 
Number 
and 
Position. 
Number 
and rela- 
tive 
Length. 
Connexion 
of the Sta- 
mens by 
filaments or 
anthers. 
Position 
of the 
Stamens 
relative 
to the 
Pistils. 
Invisible 
or 
Caducous. 
Classes. 
I. Monandria, 1 stamen. 
2. Diandria, 2. 
3. Triandria, 3. 
4. Tetrandria, 4. 
5 Pentandria, 5. 
6. Hexandria, 6. 
7. Heptandria, 7. 
8. OcTANDRIA, 8. 
9. Enneandria, 9. 
10. Decandria, 10. 
II. Icosandria, over 10 
stamens, on the calyx. 
12. Polyandria, many sta- 
mens, not on the calyx. 
13. Didynamia, 4 stamens 
2 of them longest. 
14. Tetradynamia, 6 sta- 
mens, 4 of them longest. 
15. Mon an del phi a, fila- 
ments united in 1 set. 
1G. Diadelphia, filaments 
united in 2 sets — papi- 
lionaceous. 
17. Syngenesia, anthers 
united — flowers com- 
pound. 
18. Gynandria, stamens 
on the pistil, distant 
from corolla. 
19. Moniecia, stamens in 
flowers separate from 
pistils, on the same 
plant. 
20. Dkecia, stamens in 
flowers separate from 
pistils on separate plants 
21. Cryptogamia, stamens i Natural families. 1. Fi- 
invisible, wanting, or c l>ces 2. Muse. J Hepati- 
very caducous. I £ae,4 Alga, 5. L.chenes, 
J s J 6. Fungi. 
Orders. 
Number of styles; if styles 
are wanting, number of ses- 
sile stigmas. Monogynia, 1. 
style or one sessile stigma. 
Digynia 2. Trigynia, 3. Te- 
tragynia, 4. Pentagynia, 5. 
Hexagynia, 6. Heptagynia, 
7. Octogynia, 8. Ennea- 
gynia, 9. Decagynia, 10. 
Polygynia, any number over 
10 . 
1. Gymnospermia, seeds na- 
ked. 
2. Angiospermia, seeds in 
capsules. 
1. Siliculosa, pod short. 
2. Siliquosa, pod long. 
Characters and names of 
preceding classes. As, 1. 
Monandria, 2. Diandria, 3. 
Triandria, 4. Tetrandria, 5. 
Pentandria, 6. Hexandria. 
Disk and ray florets com- 
pared. 1. iEqualis, 2. Su- 
perflua, 3. Frustranea, 4. 
Necessaria, 5. Segregata. 
Characters and names of 
preceding classes, (as un- 
der the classes 15 and 16,) 
7. Heptandria, 8. Octandria, 
9. Enneandria, 10. Decan- 
dria, 12. Polyandria, 1G. Mo- 
nadclphia. 
We have now in a condensed form, exhibited the Linnaean 
system ; a thorough knowledge of it can only be gained by a se- 
ries of inductions made by the analysis of single plants. You 
cannot be to much impressed with the idea, that a knowledge of 
nature must be acquired chiefly by the observation of material 
objects. 
Synopsis of artificial classes and orders — 
