MEDICINAL PLANTS IN ENGLAND. 83 for the present no longer be imported from central Europe. Supplies of drugs, especially of belladonna leaves and root, are much in demand, but in the case of other Continental drugs grown in England the shortage is not so serious." The most important species are Henbane (Hyoscyamus niger L.), Thorn-Apple (Datura stramonium L.), Belladonna (Atropa belladonna L.), Foxglove (Digitalis purpurea L.), Aconite (Aconi- tum napellus L.) Valerian (Valeriana officinalis L.), and Fennel (Foeniculum capillaceum Gilbert), which latter is largely used for cattle condiments. The price of belladonna has risen seriously (more than 100 per cent.) since the outbreak of war, and as it takes at least two years to grow this drug in quantity the drug grown next year is likely to realise high prices. This applies in lesser degree to chamomile, dill, dandelion, and valerian. The prices of Colchi- cum, digitalis, fennel, henbane, stramonium, and "botanical herbs" must also be considerably affected. "Botanical Herbs" for sale by chemists and medical herbalists are understood to be in steady demand and those grown in Eng- land are the best and are preferred, and can be readily cultivated. The following, amongst others, may be mentioned:— Balm (Melissa officinalis, L.), for herb; Comfrey (Sym- phytum officinale, L.), for root; Feverfew (Chrysanthemum parthenium, L.), for herb; Greater Celandine (Chelidonium majus, L.), for herb; Germander (Teucrium scorodonia, L.) for herb; Marshmallow (Althaea officinalis, L.), for root and leaves; Mugwort (Artemisia vulgaris, L.), for root; Pennyroyal (Mentha pulegium, L.), for herb; Rue (Ruta graveolens, L.), for herb; Southernwood (Artemisia abrotaneum), for herb; Tansy (Tanacetum vulgare, L.), for herb ; Wormwood (Artemisia absinthium, L.), for herb; Yarrow (Achillea millefolium, L.), for herb. The Board's circular adds that "considerable demand will occur next year, owing to short supply, for buckbean leaves, centaury, coltsfoot leaves, feverfew, figwort, marshmallow leaves and root, meadowsweet, wild carrot fruits, and yarrow. These include some of the commonest British wild plants, but in the ordinary way few are collected in England except by herbalists, or by herb gatherers on behalf of a few agents for wholesale firms."