ON THE MIXED HERBAGE OF PERMANENT MEADOW. 
1207 
Table XXXV. 
Orders. 
Number of 
genera. 
Number of 
species. 
1. Gramineae. 
14 
20 
2. Composite. 
12 
13 
10 
6 
5 
3. Leguminosse. 
4. Rosaeeae. 
5. Ranunculacese. 
5 
5 
1 
6. TTmbelliferas. 
5 
5 
7. Labiatse. .. 
3 
3 
8. Polygonacese. 
1 
3 
o 
9. Liliaceaa. 
3 
o 
10. Caryophylleae. 
2 
3 
3 
3 
11. ScrophulariaceaB. 
1 
12. Mnsci. 
1 
13. Rubiaceae. 
1 
2 
14. Plantaginaceae. 
1 
2 
-t 
15. Crucifer as. 
1 
1 
16. Hypericaceaa ....... 
1 
1 
-f 
17. Dipsaceae .. 
18. Primulaceae.. 
1 
1 
1 
1 
19. Orchidaceae. 
1 
1 
20. Juncacese. 
1 
1 
21. Cyperaceae. 
1 
1 
22. Filices. 
1 
1 
Total. 
63 
89 
The number of species detailed in the foregoing table does not, however, give any idea 
of the degree of predominance or of the absolute quantities of any particular species, or 
of the number of species, on any individual plot. It may happen that one species, e.g ., 
Dactylis glomerata, may, in one season, or under one particular manurial condition, 
all but monopolise the area of the plots. An estimate of the relative preponderance 
of the different species is only arrived at by observation during growth, and after the 
removal of the crop, and by the careful analysis of the samples from the results of 
which the percentage and the weight of each species is deduced, as explained in the 
introduction. ^ 
* In reference to this subject the following statements relating to the absolute number of individual 
plants in a given area may be cited. 
Darwin, * Origin of Species,’ chapter 3, mentions 357 seedlings of various kinds as having come up 
upon an area 3 feet long and 2 feet wide, previously cleared. Of these no less than 295 were destroyed 
chiefly by slugs or insects. 
Sinclair, in his ‘ Hortus Gramineus Woburnensis’ (1824), p. 244, 8th edition, gives a table showing the 
number of distinct rooted plants of various species found in one square foot in nine separate localities. 
The number varied from 1,798 to 634; and where particular species only were grown by themselves, as 
in the case of rye grass, to 75 only. Of the 1,798 plants in one foot square of a well managed water 
meadow, 1,702 were grasses, and 96 clover and other plants. Of 910 plants in a foot square of old pas- 
7 P 2 
