330 BOTANICAL GAZETTE [May 
As is shown in the above table, some herbaceous plants con- 
tain no starch in the mesophyll in winter, while others retain | 
some. In many of the herbaceous leaves a little starch was 
found in the guard-cells of stomata. 
Some monocotyledonous plants which contain very little or 
no starch in the mesophyll, but much in the guard-cells during 
milder temperature, were also exaniined in winter, and more or 
less starch was always found in the stomata, as is shown in the 
following table : : 
Name Date Pal. Spon. 
dem aponica 200. ee December 5 Le) : 
hiopogon japonicus....... Januar ) ft 
Rhodes japonica. .....-..<.. January 7 ) ae 
Miicitrs turida............ January 7 o-1 oF I- 
- Thus we see that Lidforss’s conclusion (¢. ¢.) that the gree 
cells of the plant, as well as the guard-cells, are entirely free 
from starch during winter months does not hold about Tokyo. : 
I have also examined many evergreen leaves collect 
different parts of the country in winter and preserved in ale : 
The results are given below. : oe 
Evergreen leaves from Sapporo. 
on January 22 and 25, and February 16. Amo 
‘mesophyll of the following species was foun 
Starch: 
Sciadopitys verticillata. Thujopsis erat gee 
Pinus Thunbergii. Podocarpus chinensis 
_ Pinus Strobus. Taxus cuspidate 
Pinus austriaca. — Carex rhynchophy!la. : 
Pinus densiflora. Viscum album. 
Picea excelsa. 
Abies firma. 
Abies sachalinensis. 
Thuja orientalis. 
