THE NUMBER OF STAMENS AND CARPELS. 
235 
fugaceous nature of the stamens, these were not counted in 
thirteen flowers in which the carpels were examined. 
TABLE XI. 
Number of Stamens and Carpels in Flowers of Ranunculus arvensis 
according to Position on Branch. 
| 
No. of Average | No. of Average 
flowers. stamens. | flowers. carpels 
Terminal flowers ............ 12 156 | 23 6:04 
lst lateral flowers............ 22 13:18 23 6:04 
2nd ,, po eren 20 14:0 21 6:29 
8rd ,, y» eme 5 12:2 5 5:6 
1st branch of 1st lateral ... 14 12:93 14 6:21 
2nd ,, " "E 7 1314 7 70 
Jst ,, 2nd ,, 9 13:33 9 6:44 
2nd ,, _ 2 125 2 60 
Total osese... 9 | ...... | 104 
Average ......... es... 1378 || ...... 6:19 
RANUNCULUS BULBOSUS, L. 
Here, as in the last, the terminal flowers have more stamens than 
the lateral ones: Table XII. shows this. 
The plants examined 
were obtained from Chesterton, near Cambridge, on April 13th. 
The long summer of 1893 caused this plant to begin a second 
flowering late in October of that year; and, as a consequence 
of this, I obtained from the locality above mentioned, between 
January 29th and February 26th, 1894, twenty-four flowers. 
These flowers, developed in a very much colder period than the 
spring flowers, had much fewer stamens and carpels. 
TABLE XII. 
Number of Stamens and Carpels in Flowers of 
Ranunculus bulbosus. 
Winter flowers ............... 
42:17 21:08 
Average number Ratio of 
stamens to 
of stamens. | of carpels. 1 carpel. 
Spring flowers. Terminal ...... 64:0 35:89 1:78 
" " Lateral ......... 549 32-0 1:72 
2:0 
