an appellation given to plants abounding with a milky juice, as the sow-thistle and various others. The name of lactiferos, or lactescens, is given to all those plants which abound with a thick, coloured juice, whatever may be its colour. Most lactiferous plants are poisonous, except those with compound flowers, which are generally of an innocent quality. Of the poisonous lactescents, the most remarkable are sumach, agaric, maple, burning thorny plant, cassada, celandine, puccoon, prickly poppy, and the plants of the natural order contortia, as swallowwort, apocynum, cynanchum, and cerbera. The bell-shaped flowers are partly noxious, as cardinal flower; partly innocent, as campanula. Amongst the lactescents plant's with compound flowers that are innocent in their quality, may be mentioned dandelion, picris, hyoseris, wild lettuce, gum succory, hawkweed, bastard hawkweed, hypochaeris, goat's beard, and most species of lettuce.