322 BorraginaceceAnchusa. 



There are numerous other species, but the above is the only 

 ornamental plant of any value. 



5. PULMONARIA. 



Perennial tufted herbs with simple flowering stems and 

 terminal cymes. Calyx angular, deeply 5-partite. Corolla 

 funnel-shaped, 5-lobed, with 5 tufts of hairs alternating with 

 the stamens, the latter included. Nuts 4, turbinate, smooth, 

 sessile on a flat receptacle. There are five species, natives of 

 Europe and North Asia. The name is from pulmo, the lungs, 

 in allusion to the supposed efficacy of these herbs in lung com- 

 plaints ; hence the English name Lungwort. 



1. P. officinalls. Leaves radical, ovate-lanceolate, on long- 

 petioles, often spotted with light green. Flowers red, changing 

 to blue or purple. This is a common plant in old gardens, and 

 generally known by the blotched leaves, though there is a 

 variety without blotches and another with white flowers. A 

 native of various parts of Europe, and occasionally found in 

 a semi-wild state in Britain. 



P. angustifdlia, similar to the last, with narrow leaves and 

 pink ultimately bright blue flowers, is believed to be truly 

 indigenous in Hants and Dorset. P. Sibirica is of more 

 slender habit, with uniformly green leaves and deep blue 

 flowers. They all flower in Spring. 



Mertensia Virginica, Virginian Cowslip, is an allied per- 

 ennial plant from 1 to 2 feet high with smooth pale green 

 foliage and pale blue, puiple or white flowers in terminal 

 clusters. It is separated from Pulmonaria on account of the 

 stamens exceeding the corolla-tube, and the nuts being fleshy 

 when fresh. M. maritima is a native species, found on the 

 western coast. 



Onosma Tauricum is a handsome tufted herbaceous plant 

 less than a foot high, with lanceolate hispid leaves and large 

 golden yellow flowers in drooping clusters. The stamens 

 exceed the naked corolla, and the nuts are stony. There are 

 several other species, but this is one of the best. 



6. LITHOSP^RMUM. 



Hispid or hairy annual or perennial herbs, sometimes shrubby 

 at the base, often of prostrate habit. Flowers in bracteate 

 cymes. Calyx 5-lobed to the base. Corolla funnel- or salver- 

 shaped ; throat naked, or with 5 tumid folds ; limb spreading. 



