THE FLOWER. 123 
-come into bloom the following spring with the first rays of the 
warm sun. These flower-buds are scales (sguamose), that is, shut 
up in scaly coverings, which bear the name of /ibernacula, or 
winter quarters. The flower-buds which spring and are developed 
during the warm season are said to be naked. 
The flower-bud at last opens, blows, and passes into the state of 
a flower. This blooming does not take place at all times of the 
day indifferently. Linnzus has drawn up a list of plants arranged 
according to the hour at which their flowers blow. He called this 
list the Floral Clock. De Candolle has also noted the times at 
which the following flowers blow at Paris :— 
Between 3 and 4 A.M. 
PRE 
Between 5 ps 6A A.M. 
A 
hiwida: 6 ick TA A.M. 
Bindweed of the hedgerows 
Naked stalked Poppy and most of the Chichoraces. 
Nipple Wort and the Day Lily. 
Many of the someone a come family. 
Sow Thistle and Spurr 
7 AM. Water Lilies, iets: 
At 7 to 8 a.m Venus’s Looking-glass 
At 8 a.m. Wild Pimpernel. 
At 9 a.m. Wild M 1d, 
At 9 to 10 a.m Ice Plant 
At 11 am . Purslain, Star of Bethlehem. 
Ati; : Most of the — or Mesembryanthemum family. 
At 2 p.m. 
Between 5 oak 6x P.M. 
Between 6 and 7 p.m. 
Silene ates 
Marvel of Peru. 
Between 7 and 8 p.m. Tree Primrose. 
At 10 p 
Cereus grandiflorus, 
. Purple Convolvulus. 
Some plants remain in bloom many days in succession. There 
are others which are ephemeral, and, opening at a fixed time, 
finally close up and fall off the same day at a nearly settled hour. 
The Cistus and Flax plant expand their green flowers about five 
or six o’clock in the morning, and are withered before midday. 
The Cereus grandiflorus blows at seven in the evening, and closes 
about midnight. 
ertain equinoxial flowers open and close at a fixed time in the 
same day ; on the morrow and for several following days, they again 
open and shut at the same regular hours. The Star of Bethlehem 
opens several days in succession at eleven in the morning, and closes 
at three. The Ficoides noctiflora blows several days in succession at 
seven in the evening, and closes about six or seven in the morning. 
