106 THE HUMAN SIDE OF PLANTS 
open the naked-stalked poppy, the copper-coloured 
day-lily, the smooth sow-thistle, and the blue-flow- 
ered sow-thistle; while within the following minutes, 
until six, the morning-glory and the common nip- 
plewort unfold. 
The spotted cat’s-ear, the major convolvulus, and 
the great water-lily, Victoria Regia, open between 
six and seven in the morning. 
Directly following these, and at seven o'clock, 
come the African marigold and the garden lettuce; 
at eight the shepherd’s weather-glass and the pro- 
liferous pink; and sharply at nine o’clock the field 
marigold awakes. 
Between nine and ten in the morning come the 
purple sandwort, the creeping mallow, and the 
chickweed; at ten, one of the Mesembryanthemums; 
at eleven, the Star-of-Bethlehem; and at twelve, the 
ice-plant. 
Noon sees the closing of the first flowers and be- 
gins the recording of the “negative” or closing time 
instead of the “positive” or opening hours; al- 
though there are plants, such as the four-o’clock, 
and the primroses, and also the night-bloomers, 
with their own regular times, which open after the 
noon hour. 
The late-flowering dandelion, the hawkweed 
picris, the Alpine hawk’s-beard, the blue-flowered 
