Show Characteristics of Plants Times at which different plants planta open and shut their petals have haTe been Investigated and It Is commonly found that the hour varies according to the amount of moisture in the air aJr The main thing is to protect the pollen pol len from invading moisture and since Ince some plants such as the pimpernel promptly close their petals on the near neat approach of rain they serve aa as weather er glasses Some plants planta seem to bell believe v vin in a short days day's work the pimpernel for Instance opening at 8 in the morning morning momin morn mom in ing and closing at 2 o'clock la In th the afternoon the goats beard on the theother other hand doing business from I S a a. m m m. to 10 D. D m. m |