DESCRIPTIVE LIST OF FLOWEIiS. 123 



AMMOBIUM. 



CFrom the Greek, meaning to live upon sa7id.] 



Ammobilim alatum.— Winged Ammobium.— A pretty, 

 half-hardy Xew Holland annual, with dry, Avhite, involu- 

 cral scales, like a Gnaphaliiim. The flowers, when gath- 

 ered before they fully mature, retain their shape and 

 brightness, and are fit companions for Helichrysums, 

 Amaranths, and other everlasting flowers for winter orna- 

 ments. Height, two feet. The stems have a curious 

 winched attachment their whole length. 



AMSONIA. 



[Named after a traveller, Mr. Cliarles Amson.] 



Amsonia Tabcrnsemontana. — Broad-leaved Amsonia, 

 and lias been called A. latifolia^ but the name here given 

 is the oldest. A hardy perennial, about two feet high, 

 with leaves somewhat like those of the jDcach and pale- 

 blue flowers in terminal clusters. 



A. salicifolia. — Willow-leaved Amsonia, has narrower 

 leaves. Both are easily cultivated native plants, which 

 succeed in almost any soil, and flowers in June. 



ANAGALLIS.— Pimpernel. 



[From tlie Greek, ^o Zawg-A ; the name expressing the medicinal qualities of 

 the plant, whicli, by removing obstructions from the liver, removed a cause 

 of low spirits and despondency. So at least say Piiny and others.] 



Anagallis arvensis. — Pimpernel, or Poor mail's weather 

 glass^ one of the Ilorm horologica^^ opening its flowers 

 regularly about eight minutes past eight o'clock in the 

 latitude of England, and closing about three minutes past 

 two o'clock. It also serves as an hygrometer, for, if rain 

 fall, or there be much moisture in the atmospere, the flow- 



