Pulmonaria derives its name, some say, from the speckled appearance of the leaves, resembling diseased lungs; but others think that its name has arisen from the plant having been used with success in pulmonary complaints; whence, also, perhaps, the English name, Lungwort.
Pulmonaria Virginica, - or Virginian Lungwort, - occurs pretty commonly in the shady woods of Pennsylvania, and most other of the southern and western States. Its flowers, which appear in May, look like so many small, bright-blue, pendulous funnels, internally open at the orifice, after the manner of the genus, each springing out of a prismatic, pentagonal, five-toothed calyx.
After flowering, the plant to appearance dies, as it is not seen until the following spring; propagated by divisions of the root. This is one of the most elegant ornaments of the flower-garden in May.
P. officinalis, - Medicinal Lungwort, - is a pretty dwarf species, in bloom from April to June, with clusters of red and bluish-purple flowers, with spotted leaves; six inches high.
P. Siberica and maritima are elegant perennials, greatly resembling each other, and considered by some, as most probably, only varieties. They are among the most elegant orna-ments of the flower-garden, in dry springs; but they require some care in keeping, unless in a soil almost entirely of sand.