The dried single and double flower-heads of the common chamomile, Anthemis nobilis, collected from cultivated plants.

Characters. - Subglobular heads, about three-quarters of an inch (2 centimetres) broad. The single variety consists of both yellow tubular and white strap-shaped florets; the double of white strap-shaped florets only; all arising from a conical scaly receptacle; both varieties, but especially the single, are bitter and very aromatic.

Composition. - Essential oil, removed by distillation, also a bitter acid in small quantity.

Preparations.

B.P.

Dose.

Extractum Anthemidis ..............................

2-10 gr.

Infusum " .............................

1-4 fl. oz.

Oleum " ........................

1-4 min.

U.S.P

None.